{"id":15776,"date":"2026-11-02T17:38:02","date_gmt":"2026-11-02T17:38:02","guid":{"rendered":"https:\/\/bjftradinggroup.com\/?p=15776"},"modified":"2026-11-02T17:38:02","modified_gmt":"2026-11-02T17:38:02","slug":"cex-dex-arbitrage","status":"publish","type":"post","link":"https:\/\/bjftradinggroup.com\/vi\/cex-dex-arbitrage\/","title":{"rendered":"Gi\u1ea3i th\u00edch arbitrage CEX-DEX: t\u00e1c \u0111\u1ed9ng gi\u00e1 AMM, gas, MEV v\u00e0 chi ph\u00ed th\u1ef1c"},"content":{"rendered":"<p><\/p>\n<div class=\"cdx-page\">\n<div class=\"cdx-hero\">\n<span class=\"cdx-hero-tag\">BJF TRADING GROUP \u00b7 ARBITRAGE CRYPTO<\/span><\/p>\n<h2>Gi\u1ea3i th\u00edch arbitrage CEX-DEX: <span class=\"cdx-gold\">t\u00e1c \u0111\u1ed9ng gi\u00e1 AMM, gas, MEV v\u00e0 \u0111i\u1ec3m h\u00f2a v\u1ed1n th\u1ef1c t\u1ebf<\/span><\/h2>\n<p class=\"cdx-hero-sub\">Khi Bitcoin ho\u1eb7c Ether bi\u1ebfn \u0111\u1ed9ng tr\u00ean m\u1ed9t s\u00e0n giao d\u1ecbch t\u1eadp trung l\u1edbn, gi\u00e1 b\u00ean trong pool c\u1ee7a s\u00e0n giao d\u1ecbch phi t\u1eadp trung kh\u00f4ng t\u1ef1 thay \u0111\u1ed5i theo. N\u00f3 gi\u1eef nguy\u00ean \u1edf m\u1ee9c m\u00e0 l\u1ec7nh swap cu\u1ed1i c\u00f9ng \u0111\u1ec3 l\u1ea1i cho \u0111\u1ebfn khi c\u00f3 ng\u01b0\u1eddi giao d\u1ecbch \u0111\u1ec3 k\u00e9o n\u00f3 v\u1ec1 \u0111\u00fang m\u1ee9c th\u1ecb tr\u01b0\u1eddng. Ng\u01b0\u1eddi \u0111\u00f3 ch\u00ednh l\u00e0 nh\u00e0 kinh doanh ch\u00eanh l\u1ec7ch gi\u00e1 CEX-DEX. H\u01b0\u1edbng d\u1eabn n\u00e0y gi\u1ea3i th\u00edch giao d\u1ecbch di\u1ec5n ra nh\u01b0 th\u1ebf n\u00e0o, v\u00ec sao ch\u00eanh l\u1ec7ch gi\u00e1 1% th\u1ef1c ra c\u00f3 gi\u00e1 tr\u1ecb th\u1ea5p h\u01a1n nhi\u1ec1u so v\u1edbi 1%, gas, ph\u00ed pool v\u00e0 block builder l\u1ea5y \u0111i bao nhi\u00eau, v\u00e0 c\u00e1ch t\u00ednh m\u1ee9c ch\u00eanh l\u1ec7ch b\u1ea1n th\u1ef1c s\u1ef1 c\u1ea7n tr\u01b0\u1edbc khi m\u1ed9t c\u01a1 h\u1ed9i tr\u1edf n\u00ean c\u00f3 th\u1eadt.<\/p>\n<\/div>\n<div class=\"cdx-toc\">\n<strong>N\u1ed9i dung h\u01b0\u1edbng d\u1eabn<\/strong><\/p>\n<ol>\n<li><a href=\"#cdx-what\">Arbitrage CEX-DEX l\u00e0 g\u00ec<\/a><\/li>\n<li><a href=\"#cdx-lag\">V\u00ec sao gi\u00e1 DEX ch\u1eadm h\u01a1n s\u00e0n t\u1eadp trung<\/a><\/li>\n<li><a href=\"#cdx-amm\">To\u00e1n h\u1ecdc AMM: t\u00e1c \u0111\u1ed9ng gi\u00e1 v\u00e0 quy m\u00f4 giao d\u1ecbch t\u1ed1i \u01b0u<\/a><\/li>\n<li><a href=\"#cdx-example\">V\u00ed d\u1ee5 t\u00ednh to\u00e1n: ch\u00eanh l\u1ec7ch 1% tr\u00ean pool ETH\/USDC<\/a><\/li>\n<li><a href=\"#cdx-breakeven\">V\u00f9ng kh\u00f4ng giao d\u1ecbch: ch\u00eanh l\u1ec7ch ph\u1ea3i l\u1edbn \u0111\u1ebfn m\u1ee9c n\u00e0o<\/a><\/li>\n<li><a href=\"#cdx-legs\">Hai ch\u00e2n l\u1ec7nh, kh\u00f4ng c\u00f3 t\u00ednh nguy\u00ean t\u1eed: r\u1ee7i ro th\u1ef1c thi<\/a><\/li>\n<li><a href=\"#cdx-mev\">MEV, block builder v\u00e0 ai th\u1eafng cu\u1ed9c \u0111ua<\/a><\/li>\n<li><a href=\"#cdx-chains\">L\u1ef1a ch\u1ecdn chu\u1ed7i: Ethereum, rollup v\u00e0 chu\u1ed7i t\u1ed1c \u0111\u1ed9 cao<\/a><\/li>\n<li><a href=\"#cdx-inventory\">V\u1ed1n t\u1ed3n kho, t\u00e1i c\u00e2n b\u1eb1ng v\u00e0 c\u1ea7u n\u1ed1i<\/a><\/li>\n<li><a href=\"#cdx-steps\">T\u1eebng b\u01b0\u1edbc: \u0111\u00e1nh gi\u00e1 m\u1ed9t c\u01a1 h\u1ed9i<\/a><\/li>\n<li><a href=\"#cdx-risks\">R\u1ee7i ro v\u00e0 h\u1ea1n ch\u1ebf<\/a><\/li>\n<li><a href=\"#cdx-cexcex\">CEX-DEX hay CEX-CEX: l\u1ef1a ch\u1ecdn n\u00e0o ph\u00f9 h\u1ee3p v\u1edbi b\u1ea1n<\/a><\/li>\n<li><a href=\"#cdx-faq\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/a><\/li>\n<\/ol>\n<\/div>\n<h2 id=\"cdx-what\">Arbitrage CEX-DEX l\u00e0 g\u00ec<\/h2>\n<p class=\"cdx-answer\"><strong>Tr\u1ea3 l\u1eddi ng\u1eafn g\u1ecdn:<\/strong> Arbitrage CEX-DEX l\u00e0 vi\u1ec7c mua m\u1ed9t token tr\u00ean s\u00e0n giao d\u1ecbch phi t\u1eadp trung (m\u1ed9t pool h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh nh\u01b0 nh\u00e0 t\u1ea1o l\u1eadp th\u1ecb tr\u01b0\u1eddng t\u1ef1 \u0111\u1ed9ng) v\u00e0 \u0111\u1ed3ng th\u1eddi b\u00e1n n\u00f3 tr\u00ean s\u00e0n giao d\u1ecbch t\u1eadp trung, ho\u1eb7c ng\u01b0\u1ee3c l\u1ea1i, khi hai m\u1ee9c gi\u00e1 ch\u00eanh nhau nhi\u1ec1u h\u01a1n t\u1ed5ng chi ph\u00ed c\u1ee7a c\u1ea3 hai giao d\u1ecbch. V\u00ec gi\u00e1 pool ch\u1ec9 thay \u0111\u1ed5i khi c\u00f3 ng\u01b0\u1eddi swap, n\u00f3 t\u1ee5t l\u1ea1i ph\u00eda sau th\u1ecb tr\u01b0\u1eddng t\u1eadp trung sau m\u1ed7i bi\u1ebfn \u0111\u1ed9ng, v\u00e0 ch\u00ednh c\u00e1c nh\u00e0 kinh doanh ch\u00eanh l\u1ec7ch gi\u00e1 l\u00e0 ng\u01b0\u1eddi k\u00e9o n\u00f3 tr\u1edf l\u1ea1i.<\/p>\n<p>Hai n\u01a1i giao d\u1ecbch ho\u1ea1t \u0111\u1ed9ng theo nh\u1eefng c\u00e1ch ho\u00e0n to\u00e0n kh\u00e1c nhau. S\u00e0n giao d\u1ecbch t\u1eadp trung (CEX) v\u1eadn h\u00e0nh s\u1ed5 l\u1ec7nh: c\u00e1c nh\u00e0 t\u1ea1o l\u1eadp th\u1ecb tr\u01b0\u1eddng \u0111\u1eb7t gi\u00e1 mua v\u00e0 gi\u00e1 b\u00e1n, v\u00e0 gi\u00e1 thay \u0111\u1ed5i li\u00ean t\u1ee5c khi l\u1ec7nh \u0111\u1ebfn, th\u01b0\u1eddng h\u00e0ng ngh\u00ecn l\u1ea7n m\u1ed7i gi\u00e2y. S\u00e0n giao d\u1ecbch phi t\u1eadp trung (DEX) x\u00e2y d\u1ef1ng tr\u00ean nh\u00e0 t\u1ea1o l\u1eadp th\u1ecb tr\u01b0\u1eddng t\u1ef1 \u0111\u1ed9ng (AMM) kh\u00f4ng c\u00f3 s\u1ed5 l\u1ec7nh. N\u00f3 gi\u1eef hai kho\u1ea3n d\u1ef1 tr\u1eef token trong m\u1ed9t h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh v\u00e0 b\u00e1o gi\u00e1 d\u1ef1a tr\u00ean t\u1ef7 l\u1ec7 gi\u1eefa hai kho\u1ea3n d\u1ef1 tr\u1eef \u0111\u00f3. Pool kh\u00f4ng quan s\u00e1t th\u1ebf gi\u1edbi b\u00ean ngo\u00e0i. N\u1ebfu ETH t\u0103ng 1% tr\u00ean th\u1ecb tr\u01b0\u1eddng t\u1eadp trung, pool v\u1eabn ch\u00e0o b\u00e1n ETH \u1edf m\u1ee9c gi\u00e1 c\u0169 cho \u0111\u1ebfn khi m\u1ed9t trader mua \u0111\u1ee7 l\u01b0\u1ee3ng \u0111\u1ec3 l\u00e0m thay \u0111\u1ed5i kho\u1ea3n d\u1ef1 tr\u1eef.<\/p>\n<p>Trader \u0111\u00f3 th\u01b0\u1eddng l\u00e0 m\u1ed9t bot th\u1ef1c hi\u1ec7n ba vi\u1ec7c g\u1ea7n nh\u01b0 c\u00f9ng l\u00fac:<\/p>\n<ul class=\"cdx-checks\">\n<li><strong>Ph\u00e1t hi\u1ec7n<\/strong> r\u1eb1ng gi\u00e1 pool l\u1ec7ch kh\u1ecfi gi\u00e1 t\u1eadp trung nhi\u1ec1u h\u01a1n chi ph\u00ed.<\/li>\n<li><strong>Swap on-chain<\/strong> v\u1edbi pool theo h\u01b0\u1edbng c\u00f3 l\u00e3i, v\u1edbi quy m\u00f4 sao cho gi\u00e1 pool cu\u1ed1i c\u00f9ng g\u1ea7n v\u1edbi gi\u00e1 t\u1eadp trung.<\/li>\n<li><strong>Ph\u00f2ng h\u1ed9 tr\u00ean CEX<\/strong> b\u1eb1ng giao d\u1ecbch ng\u01b0\u1ee3c chi\u1ec1u, \u0111\u1ec3 kh\u00f4ng gi\u1eef v\u1ecb th\u1ebf r\u00f2ng n\u00e0o \u0111\u1ed1i v\u1edbi token.<\/li>\n<\/ul>\n<p>C\u01a1 ch\u1ebf kinh t\u1ebf n\u00e0y kh\u00f4ng ph\u1ea3i b\u00ed m\u1eadt: gi\u1edbi h\u1ecdc thu\u1eadt g\u1ecdi gi\u00e1 tr\u1ecb thu \u0111\u01b0\u1ee3c theo c\u00e1ch n\u00e0y l\u00e0 <em>loss-versus-rebalancing<\/em> (LVR), v\u00ec m\u1ed7i \u0111\u00f4 la nh\u00e0 kinh doanh ch\u00eanh l\u1ec7ch gi\u00e1 ki\u1ebfm \u0111\u01b0\u1ee3c l\u00e0 m\u1ed9t \u0111\u00f4 la m\u00e0 c\u00e1c nh\u00e0 cung c\u1ea5p thanh kho\u1ea3n c\u1ee7a pool m\u1ea5t \u0111i so v\u1edbi vi\u1ec7c t\u00e1i c\u00e2n b\u1eb1ng theo gi\u00e1 th\u1ecb tr\u01b0\u1eddng. \u0110i\u1ec1u \u00edt r\u00f5 r\u00e0ng h\u01a1n l\u00e0 ph\u1ea7n ch\u00eanh l\u1ec7ch nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c c\u00f2n l\u1ea1i r\u1ea5t \u00edt sau khi tr\u1eeb ph\u00ed pool, t\u00e1c \u0111\u1ed9ng gi\u00e1, gas v\u00e0 kho\u1ea3n tr\u1ea3 cho b\u00ean s\u1eafp x\u1ebfp th\u1ee9 t\u1ef1 trong block. \u0110\u00f3 l\u00e0 \u0111i\u1ec1u ph\u1ea7n c\u00f2n l\u1ea1i c\u1ee7a h\u01b0\u1edbng d\u1eabn n\u00e0y l\u01b0\u1ee3ng h\u00f3a. \u0110\u1ec3 c\u00f3 c\u00e1i nh\u00ecn t\u1ed5ng quan r\u1ed9ng h\u01a1n v\u1ec1 arbitrage on-chain, flash loan v\u00e0 chu\u1ed7i cung \u1ee9ng MEV, xem <a href=\"https:\/\/bjftradinggroup.com\/defi-arbitrage\/\">h\u01b0\u1edbng d\u1eabn arbitrage DeFi<\/a> c\u1ee7a ch\u00fang t\u00f4i; b\u00e0i vi\u1ebft n\u00e0y t\u1eadp trung v\u00e0o giao d\u1ecbch gi\u1eefa c\u00e1c n\u01a1i giao d\u1ecbch v\u00e0 c\u00e1c con s\u1ed1 c\u1ee7a n\u00f3.<\/p>\n<h2 id=\"cdx-lag\">V\u00ec sao gi\u00e1 DEX ch\u1eadm h\u01a1n s\u00e0n t\u1eadp trung<\/h2>\n<p>Vi\u1ec7c kh\u00e1m ph\u00e1 gi\u00e1 c\u1ee7a c\u00e1c t\u00e0i s\u1ea3n crypto l\u1edbn ch\u1ee7 y\u1ebfu di\u1ec5n ra tr\u00ean c\u00e1c th\u1ecb tr\u01b0\u1eddng giao ngay v\u00e0 h\u1ee3p \u0111\u1ed3ng t\u01b0\u01a1ng lai v\u0129nh c\u1eedu c\u00f3 thanh kho\u1ea3n s\u00e2u c\u1ee7a s\u00e0n t\u1eadp trung. C\u00e1c pool \u0111i theo sau. C\u00f3 ba l\u00fd do mang t\u00ednh c\u1ea5u tr\u00fac khi\u1ebfn ch\u00fang t\u1ee5t l\u1ea1i:<\/p>\n<h3>Pool ho\u1ea1t \u0111\u1ed9ng th\u1ee5 \u0111\u1ed9ng<\/h3>\n<p>Pool AMM kh\u00f4ng c\u00f3 nh\u00e0 t\u1ea1o l\u1eadp th\u1ecb tr\u01b0\u1eddng n\u00e0o h\u1ee7y c\u00e1c b\u00e1o gi\u00e1 c\u0169 khi c\u00f3 tin t\u1ee9c. Gi\u00e1 c\u1ee7a n\u00f3 l\u00e0 m\u1ed9t c\u00f4ng th\u1ee9c t\u00ednh t\u1eeb c\u00e1c kho\u1ea3n d\u1ef1 tr\u1eef, v\u00e0 ch\u1ec9 c\u00f3 swap m\u1edbi l\u00e0m thay \u0111\u1ed5i d\u1ef1 tr\u1eef. Gi\u1eefa c\u00e1c l\u1ea7n swap, pool ti\u1ebfp t\u1ee5c b\u00e1o gi\u00e1 c\u0169, d\u00f9 th\u1ecb tr\u01b0\u1eddng \u0111\u00e3 \u0111i xa \u0111\u1ebfn \u0111\u00e2u.<\/p>\n<h3>Block l\u00e0 r\u1eddi r\u1ea1c<\/h3>\n<p>S\u00e0n giao d\u1ecbch t\u1eadp trung c\u1eadp nh\u1eadt li\u00ean t\u1ee5c; blockchain c\u1eadp nh\u1eadt theo t\u1eebng b\u01b0\u1edbc. Tr\u00ean Ethereum mainnet, c\u1ee9 12 gi\u00e2y c\u00f3 m\u1ed9t block, v\u00ec v\u1eady gi\u00e1 pool ch\u1ec9 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh m\u1ed7i block m\u1ed9t l\u1ea7n, v\u00e0 ai \u0111\u01b0\u1ee3c x\u1ebfp \u0111\u1ea7u ti\u00ean trong block \u0111\u00f3 s\u1ebd h\u01b0\u1edfng ph\u1ea7n \u0111i\u1ec1u ch\u1ec9nh. C\u00e1c chu\u1ed7i nhanh h\u01a1n v\u00e0 rollup t\u1ea1o block trong kho\u1ea3ng v\u00e0i tr\u0103m mili gi\u00e2y \u0111\u1ebfn v\u00e0i gi\u00e2y, gi\u00fap thu h\u1eb9p kho\u1ea3ng ch\u00eanh t\u00edch t\u1ee5 gi\u1eefa c\u00e1c l\u1ea7n \u0111i\u1ec1u ch\u1ec9nh, nh\u01b0ng kh\u00f4ng bao gi\u1edd \u0111\u01b0a n\u00f3 v\u1ec1 0.<\/p>\n<h3>\u0110i\u1ec1u ch\u1ec9nh pool t\u1ed1n ti\u1ec1n<\/h3>\n<p>M\u1ed7i l\u1ec7nh swap ph\u1ea3i tr\u1ea3 ph\u00ed pool (v\u00ed d\u1ee5 0.05% ho\u1eb7c 0.3% s\u1ed1 ti\u1ec1n) c\u1ed9ng v\u1edbi gas. V\u00ec v\u1eady c\u00e1c sai l\u1ec7ch nh\u1ecf kh\u00f4ng bao gi\u1edd \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh: \u0111\u1ec3 nguy\u00ean s\u1ebd r\u1ebb h\u01a1n. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra m\u1ed9t v\u00f9ng quanh gi\u00e1 t\u1eadp trung m\u00e0 trong \u0111\u00f3 gi\u00e1 pool ch\u1ec9 tr\u00f4i d\u1ea1t. Ch\u1ec9 khi ch\u00eanh l\u1ec7ch v\u01b0\u1ee3t ra ngo\u00e0i v\u00f9ng n\u00e0y th\u00ec giao d\u1ecbch arbitrage m\u1edbi xu\u1ea5t hi\u1ec7n.<\/p>\n<figure class=\"cdx-figure\"><img decoding=\"async\" src=\"https:\/\/bjftradinggroup.com\/wp-content\/uploads\/2026\/11\/arbitrage-loop-cex-dex-arbitrage-1760x800-1.webp\" alt=\"C\u01a1 ch\u1ebf arbitrage CEX-DEX: gi\u00e1 s\u00e0n t\u1eadp trung bi\u1ebfn \u0111\u1ed9ng, pool AMM ch\u1eadm theo, nh\u00e0 kinh doanh ch\u00eanh l\u1ec7ch gi\u00e1 swap on-chain v\u00e0 ph\u00f2ng h\u1ed9 tr\u00ean s\u00e0n t\u1eadp trung\" width=\"1760\" height=\"800\" loading=\"lazy\"><figcaption>V\u00f2ng l\u1eb7p arbitrage CEX-DEX: gi\u00e1 t\u1eadp trung bi\u1ebfn \u0111\u1ed9ng tr\u01b0\u1edbc, pool ch\u1eadm theo, v\u00e0 nh\u00e0 kinh doanh ch\u00eanh l\u1ec7ch gi\u00e1 swap v\u1edbi pool \u0111\u1ed3ng th\u1eddi ph\u00f2ng h\u1ed9 tr\u00ean s\u00e0n t\u1eadp trung. L\u1ec7nh swap \u0111\u01b0a gi\u00e1 pool tr\u1edf l\u1ea1i g\u1ea7n gi\u00e1 th\u1ecb tr\u01b0\u1eddng.<\/figcaption><\/figure>\n<h2 id=\"cdx-amm\">To\u00e1n h\u1ecdc AMM: t\u00e1c \u0111\u1ed9ng gi\u00e1 v\u00e0 quy m\u00f4 giao d\u1ecbch t\u1ed1i \u01b0u<\/h2>\n<p>B\u1ea1n kh\u00f4ng th\u1ec3 x\u00e1c \u0111\u1ecbnh quy m\u00f4 giao d\u1ecbch CEX-DEX theo c\u00e1ch x\u00e1c \u0111\u1ecbnh quy m\u00f4 m\u1ed9t l\u1ec7nh tr\u00ean s\u1ed5 l\u1ec7nh. Trong pool, <strong>ch\u00ednh giao d\u1ecbch c\u1ee7a b\u1ea1n l\u00e0m gi\u00e1 thay \u0111\u1ed5i<\/strong>, v\u00e0 n\u00f3 thay \u0111\u1ed5i theo m\u1ed9t \u0111\u01b0\u1eddng cong \u0111\u00e3 bi\u1ebft. \u0110\u01b0\u1eddng cong \u0111\u00f3 quy\u1ebft \u0111\u1ecbnh c\u1ea3 m\u1ee9c l\u1ee3i nhu\u1eadn c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c l\u1eabn quy m\u00f4 giao d\u1ecbch ph\u00f9 h\u1ee3p.<\/p>\n<h3>C\u00f4ng th\u1ee9c t\u00edch kh\u00f4ng \u0111\u1ed5i<\/h3>\n<p>AMM c\u1ed5 \u0111i\u1ec3n (ki\u1ec3u Uniswap v2, c\u0169ng \u0111\u01b0\u1ee3c nhi\u1ec1u b\u1ea3n fork s\u1eed d\u1ee5ng) gi\u1eef t\u00edch c\u1ee7a hai kho\u1ea3n d\u1ef1 tr\u1eef kh\u00f4ng \u0111\u1ed5i:<\/p>\n<div class=\"cdx-code\">x * y = k &nbsp;&nbsp;&nbsp; gi\u00e1 c\u1ee7a X t\u00ednh theo Y = y \/ x<\/div>\n<p>L\u1ea5y m\u1ed9t pool c\u00f3 <strong>x = 2,000 ETH<\/strong> v\u00e0 <strong>y = 7,000,000 USDC<\/strong>. Gi\u00e1 pool l\u00e0 7,000,000 \/ 2,000 = <strong>3,500 USDC cho m\u1ed7i ETH<\/strong>, v\u00e0 k = 14,000,000,000. N\u1ebfu b\u1ea1n \u0111\u01b0a v\u00e0o \u0394y USDC (sau ph\u00ed), b\u1ea1n nh\u1eadn \u0111\u01b0\u1ee3c<\/p>\n<div class=\"cdx-code\">ETH nh\u1eadn \u0111\u01b0\u1ee3c = x * \u0394y \/ (y + \u0394y)<\/div>\n<p>M\u1ed7i USDC b\u1ea1n th\u00eam v\u00e0o khi\u1ebfn ETH ti\u1ebfp theo \u0111\u1eaft h\u01a1n. Mua b\u1eb1ng 10,000 USDC l\u00e0m gi\u00e1 thay \u0111\u1ed5i \u00edt h\u01a1n nhi\u1ec1u so v\u1edbi mua b\u1eb1ng 80,000 USDC, v\u00e0 gi\u00e1 trung b\u00ecnh b\u1ea1n tr\u1ea3 lu\u00f4n k\u00e9m h\u01a1n gi\u00e1 pool ban \u0111\u1ea7u. Kho\u1ea3n ch\u00eanh l\u1ec7ch \u0111\u00f3 l\u00e0 <strong>t\u00e1c \u0111\u1ed9ng gi\u00e1<\/strong>, v\u00e0 n\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 ph\u00ed do ai thu: n\u00f3 ch\u00ednh l\u00e0 \u0111\u01b0\u1eddng cong.<\/p>\n<h3>Quy m\u00f4 t\u1ed1i \u01b0u: d\u1eebng l\u1ea1i khi gi\u00e1 pool g\u1eb7p gi\u00e1 th\u1ecb tr\u01b0\u1eddng<\/h3>\n<p>Gi\u1ea3 s\u1eed ETH c\u00f3 gi\u00e1 3,535 tr\u00ean s\u00e0n t\u1eadp trung, cao h\u01a1n pool 1%. Mua ETH t\u1eeb pool v\u00e0 b\u00e1n tr\u00ean CEX ch\u1ec9 c\u00f3 l\u00e3i khi gi\u00e1 <em>bi\u00ean<\/em> c\u1ee7a pool (bao g\u1ed3m ph\u00ed) c\u00f2n th\u1ea5p h\u01a1n 3,535. Khi b\u1ea1n mua, gi\u00e1 pool t\u0103ng l\u00ean. Giao d\u1ecbch t\u1ed1i \u01b0u l\u00e0 giao d\u1ecbch \u0111\u1ea9y gi\u00e1 bi\u00ean c\u1ee7a pool, sau ph\u00ed, \u0111\u00fang b\u1eb1ng gi\u00e1 t\u1eadp trung. Mua \u00edt h\u01a1n th\u00ec b\u1ea1n b\u1ecf l\u1ee1 l\u1ee3i nhu\u1eadn; mua nhi\u1ec1u h\u01a1n th\u00ec nh\u1eefng \u0111\u01a1n v\u1ecb cu\u1ed1i c\u00f9ng c\u00f3 gi\u00e1 cao h\u01a1n m\u1ee9c b\u1ea1n c\u00f3 th\u1ec3 b\u00e1n.<\/p>\n<p>V\u1edbi pool t\u00edch kh\u00f4ng \u0111\u1ed5i c\u00f3 ph\u00ed f, l\u01b0\u1ee3ng \u0111\u1ea7u v\u00e0o t\u1ed1i \u01b0u c\u00f3 d\u1ea1ng nghi\u1ec7m \u0111\u00f3ng:<\/p>\n<div class=\"cdx-code\">\u0394y* = ( sqrt( \u03b3 \u00b7 x \u00b7 y \u00b7 P_cex ) \u2212 y ) \/ \u03b3 &nbsp;&nbsp;&nbsp; trong \u0111\u00f3 \u03b3 = 1 \u2212 f<\/div>\n<p>V\u1edbi f = 0.3%, l\u01b0\u1ee3ng \u0111\u1ea7u v\u00e0o t\u1ed1i \u01b0u kho\u1ea3ng <strong>24,400 USDC<\/strong>. S\u1ed1 ti\u1ec1n n\u00e0y mua \u0111\u01b0\u1ee3c kho\u1ea3ng 6.95 ETH v\u1edbi gi\u00e1 trung b\u00ecnh kho\u1ea3ng 3,523, v\u00e0 gi\u00e1 pool k\u1ebft th\u00fac \u1edf kho\u1ea3ng 3,524.5. T\u1ea1i \u0111i\u1ec3m \u0111\u00f3, c\u1ed9ng th\u00eam ph\u00ed 0.3%, ETH ti\u1ebfp theo s\u1ebd c\u00f3 gi\u00e1 kho\u1ea3ng 3,535: \u0111\u00fang b\u1eb1ng gi\u00e1 th\u1ecb tr\u01b0\u1eddng. B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y cho th\u1ea5y \u0111i\u1ec1u g\u00ec x\u1ea3y ra \u1edf c\u00e1c quy m\u00f4 kh\u00e1c.<\/p>\n<div class=\"cdx-table-wrap\">\n<table class=\"cdx-table\">\n<thead>\n<tr>\n<th>USDC \u0111\u01b0a v\u00e0o<\/th>\n<th>ETH nh\u1eadn \u0111\u01b0\u1ee3c<\/th>\n<th>Gi\u00e1 mua trung b\u00ecnh<\/th>\n<th>Gi\u00e1 tr\u1ecb tr\u00ean CEX \u1edf m\u1ee9c 3,535<\/th>\n<th>K\u1ebft qu\u1ea3 g\u1ed9p<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>10,000<\/td>\n<td>2.845<\/td>\n<td>3,515.5<\/td>\n<td>10,055<\/td>\n<td>+55<\/td>\n<\/tr>\n<tr>\n<td>20,000<\/td>\n<td>5.681<\/td>\n<td>3,520.5<\/td>\n<td>20,082<\/td>\n<td>+82<\/td>\n<\/tr>\n<tr>\n<td><strong>24,400 (t\u1ed1i \u01b0u)<\/strong><\/td>\n<td><strong>6.948<\/strong><\/td>\n<td><strong>3,522.8<\/strong><\/td>\n<td><strong>24,560<\/strong><\/td>\n<td><strong>+85<\/strong><\/td>\n<\/tr>\n<tr>\n<td>40,000<\/td>\n<td>11.330<\/td>\n<td>3,530.5<\/td>\n<td>40,051<\/td>\n<td>+51<\/td>\n<\/tr>\n<tr>\n<td>60,000<\/td>\n<td>16.947<\/td>\n<td>3,540.5<\/td>\n<td>59,906<\/td>\n<td>\u221294<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"cdx-note\">Pool t\u00edch kh\u00f4ng \u0111\u1ed5i, 2,000 ETH \/ 7,000,000 USDC, ph\u00ed pool 0.3%, gi\u00e1 t\u1eadp trung 3,535. K\u1ebft qu\u1ea3 g\u1ed9p l\u00e0 tr\u01b0\u1edbc gas, ph\u00ed s\u00e0n t\u1eadp trung v\u00e0 m\u1ecdi kho\u1ea3n tr\u1ea3 cho v\u1ecb tr\u00ed trong block. S\u1ed1 li\u1ec7u \u0111\u00e3 l\u00e0m tr\u00f2n.<\/p>\n<figure class=\"cdx-figure\"><img decoding=\"async\" src=\"https:\/\/bjftradinggroup.com\/wp-content\/uploads\/2026\/11\/profit-vs-trade-size-cex-dex-arbitrage-1760x800-1.webp\" alt=\"L\u1ee3i nhu\u1eadn g\u1ed9p c\u1ee7a arbitrage CEX-DEX theo quy m\u00f4 giao d\u1ecbch tr\u00ean pool t\u00edch kh\u00f4ng \u0111\u1ed5i, c\u00f3 \u0111\u00e1nh d\u1ea5u quy m\u00f4 t\u1ed1i \u01b0u, v\u00e0 gi\u00e1 mua trung b\u00ecnh t\u0103ng theo quy m\u00f4\" width=\"1760\" height=\"800\" loading=\"lazy\"><figcaption>B\u00ean tr\u00e1i: l\u1ee3i nhu\u1eadn g\u1ed9p c\u1ee7a giao d\u1ecbch arbitrage theo quy m\u00f4 giao d\u1ecbch c\u00f3 m\u1ed9t \u0111\u1ec9nh duy nh\u1ea5t t\u1ea1i quy m\u00f4 t\u1ed1i \u01b0u. B\u00ean ph\u1ea3i: gi\u00e1 mua trung b\u00ecnh t\u0103ng theo quy m\u00f4 do t\u00e1c \u0111\u1ed9ng gi\u00e1; v\u01b0\u1ee3t qu\u00e1 \u0111i\u1ec3m t\u1ed1i \u01b0u, n\u00f3 cao h\u01a1n gi\u00e1 t\u1eadp trung. T\u00ednh to\u00e1n t\u1eeb c\u00f4ng th\u1ee9c t\u00edch kh\u00f4ng \u0111\u1ed5i cho pool v\u00ed d\u1ee5.<\/figcaption><\/figure>\n<h3>Thanh kho\u1ea3n t\u1eadp trung thay \u0111\u1ed5i \u0111\u1ed9 s\u00e2u, kh\u00f4ng thay \u0111\u1ed5i logic<\/h3>\n<p>C\u00e1c pool thanh kho\u1ea3n t\u1eadp trung (ki\u1ec3u Uniswap v3 v\u00e0 v4, c\u00f9ng c\u00e1c pool t\u01b0\u01a1ng \u0111\u01b0\u01a1ng tr\u00ean chu\u1ed7i kh\u00e1c) cho ph\u00e9p nh\u00e0 cung c\u1ea5p thanh kho\u1ea3n \u0111\u1eb7t v\u1ed1n v\u00e0o c\u00e1c kho\u1ea3ng gi\u00e1. G\u1ea7n m\u1ee9c gi\u00e1 hi\u1ec7n t\u1ea1i, m\u1ed9t pool nh\u01b0 v\u1eady c\u00f3 th\u1ec3 s\u00e2u h\u01a1n nhi\u1ec1u l\u1ea7n so v\u1edbi pool t\u00edch kh\u00f4ng \u0111\u1ed5i c\u00f3 c\u00f9ng t\u1ed5ng gi\u00e1 tr\u1ecb, n\u00ean c\u00f9ng m\u1ed9t giao d\u1ecbch l\u00e0m gi\u00e1 thay \u0111\u1ed5i \u00edt h\u01a1n v\u00e0 quy m\u00f4 t\u1ed1i \u01b0u l\u1edbn h\u01a1n. Khi gi\u00e1 v\u01b0\u1ee3t qua bi\u00ean c\u1ee7a m\u1ed9t kho\u1ea3ng, \u0111\u1ed9 s\u00e2u c\u00f3 th\u1ec3 gi\u1ea3m m\u1ea1nh. Ph\u01b0\u01a1ng ph\u00e1p v\u1eabn gi\u1eef nguy\u00ean: m\u00f4 ph\u1ecfng l\u1ec7nh swap tr\u00ean tr\u1ea1ng th\u00e1i th\u1ef1c t\u1ebf c\u1ee7a pool, t\u1eebng tick m\u1ed9t, v\u00e0 t\u00ecm quy m\u00f4 m\u00e0 t\u1ea1i \u0111\u00f3 gi\u00e1 bi\u00ean g\u1eb7p gi\u00e1 t\u1eadp trung. Kh\u00f4ng bao gi\u1edd d\u00f9ng c\u00f4ng th\u1ee9c c\u1ee7a lo\u1ea1i pool n\u00e0y cho lo\u1ea1i pool kh\u00e1c.<\/p>\n<h2 id=\"cdx-example\">V\u00ed d\u1ee5 t\u00ednh to\u00e1n: ch\u00eanh l\u1ec7ch 1% tr\u00ean pool ETH\/USDC<\/h2>\n<p>B\u00e2y gi\u1edd h\u00e3y l\u1ea5y giao d\u1ecbch t\u1ed1i \u01b0u t\u1eeb b\u1ea3ng v\u00e0 \u0111i qua t\u1eebng kho\u1ea3n chi ph\u00ed. Ch\u00eanh l\u1ec7ch b\u1ec1 ngo\u00e0i l\u00e0 1% c\u1ee7a kho\u1ea3ng 24,400 USDC, n\u00ean \u01b0\u1edbc t\u00ednh \u0111\u01a1n gi\u1ea3n cho ra 244 USDC. \u0110\u00e2y l\u00e0 n\u01a1i s\u1ed1 ti\u1ec1n \u0111\u00f3 \u0111i \u0111\u1ebfn:<\/p>\n<div class=\"cdx-table-wrap\">\n<table class=\"cdx-table\">\n<thead>\n<tr>\n<th>B\u01b0\u1edbc<\/th>\n<th>S\u1ed1 ti\u1ec1n (USDC)<\/th>\n<th>\u00dd ngh\u0129a<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u01af\u1edbc t\u00ednh \u0111\u01a1n gi\u1ea3n &#8220;ch\u00eanh l\u1ec7ch \u00d7 quy m\u00f4&#8221;<\/td>\n<td>+244<\/td>\n<td>1% s\u1ed1 ti\u1ec1n \u0111\u01b0a v\u00e0o, nh\u01b0 th\u1ec3 to\u00e0n b\u1ed9 giao d\u1ecbch kh\u1edbp \u1edf gi\u00e1 pool ban \u0111\u1ea7u<\/td>\n<\/tr>\n<tr>\n<td>Ph\u00ed pool 0.3%<\/td>\n<td>\u221273<\/td>\n<td>Tr\u1ea3 cho nh\u00e0 cung c\u1ea5p thanh kho\u1ea3n tr\u00ean s\u1ed1 ti\u1ec1n \u0111\u01b0a v\u00e0o<\/td>\n<\/tr>\n<tr>\n<td>T\u00e1c \u0111\u1ed9ng gi\u00e1<\/td>\n<td>\u221286<\/td>\n<td>Ch\u00ednh giao d\u1ecbch c\u1ee7a b\u1ea1n \u0111\u1ea9y pool d\u1ecdc theo \u0111\u01b0\u1eddng cong<\/td>\n<\/tr>\n<tr>\n<td><strong>L\u1ee3i th\u1ebf on-chain g\u1ed9p<\/strong><\/td>\n<td><strong>+85<\/strong><\/td>\n<td>M\u1ee9c m\u00e0 to\u00e1n h\u1ecdc AMM th\u1ef1c s\u1ef1 cho ph\u00e9p<\/td>\n<\/tr>\n<tr>\n<td>Ph\u00ed taker CEX 0.05%<\/td>\n<td>\u221212<\/td>\n<td>B\u00e1n ph\u00f2ng h\u1ed9 6.95 ETH tr\u00ean s\u00e0n t\u1eadp trung<\/td>\n<\/tr>\n<tr>\n<td>Tr\u01b0\u1ee3t gi\u00e1 ph\u00f2ng h\u1ed9 0.02%<\/td>\n<td>\u22125<\/td>\n<td>Gi\u00e1 CEX thay \u0111\u1ed5i trong khi l\u1ec7nh ph\u00f2ng h\u1ed9 \u0111ang kh\u1edbp<\/td>\n<\/tr>\n<tr>\n<td>Gas<\/td>\n<td>\u22123<\/td>\n<td>M\u1ed9t l\u1ec7nh swap v\u00e0o l\u00fac mainnet \u00edt b\u1eadn r\u1ed9n; c\u00f3 th\u1ec3 cao h\u01a1n nhi\u1ec1u l\u1ea7n<\/td>\n<\/tr>\n<tr>\n<td><strong>Tr\u01b0\u1edbc chi ph\u00ed v\u1ecb tr\u00ed trong block<\/strong><\/td>\n<td><strong>+65<\/strong><\/td>\n<td>N\u1ebfu b\u1ea1n l\u00e0 nh\u00e0 kinh doanh ch\u00eanh l\u1ec7ch gi\u00e1 duy nh\u1ea5t<\/td>\n<\/tr>\n<tr>\n<td>Ph\u00ed \u01b0u ti\u00ean \/ tip cho builder (minh h\u1ecda 50%)<\/td>\n<td>\u221232<\/td>\n<td>Tr\u1ea3 \u0111\u1ec3 \u0111\u01b0\u1ee3c x\u1ebfp \u0111\u1ea7u ti\u00ean trong block; c\u00f3 c\u1ea1nh tranh<\/td>\n<\/tr>\n<tr>\n<td><strong>R\u00f2ng<\/strong><\/td>\n<td><strong>kho\u1ea3ng +33<\/strong><\/td>\n<td>Kho\u1ea3ng 0.13% v\u1ed1n s\u1eed d\u1ee5ng, tr\u01b0\u1edbc chi ph\u00ed v\u1ed1n t\u1ed3n kho v\u00e0 h\u1ea1 t\u1ea7ng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<figure class=\"cdx-figure\"><img decoding=\"async\" src=\"https:\/\/bjftradinggroup.com\/wp-content\/uploads\/2026\/11\/cost-waterfall-cex-dex-arbitrage-1760x800-1.webp\" alt=\"Bi\u1ec3u \u0111\u1ed3 th\u00e1c n\u01b0\u1edbc chi ph\u00ed c\u1ee7a giao d\u1ecbch arbitrage CEX-DEX: t\u1eeb gi\u00e1 tr\u1ecb ch\u00eanh l\u1ec7ch \u0111\u01a1n gi\u1ea3n 244 USDC xu\u1ed1ng kho\u1ea3ng 33 USDC r\u00f2ng sau ph\u00ed pool, t\u00e1c \u0111\u1ed9ng gi\u00e1, ph\u00ed s\u00e0n, tr\u01b0\u1ee3t gi\u00e1, gas v\u00e0 tip cho builder (minh h\u1ecda)\" width=\"1760\" height=\"800\" loading=\"lazy\"><figcaption>T\u1eeb ch\u00eanh l\u1ec7ch nh\u00ecn th\u1ea5y 1% \u0111\u1ebfn k\u1ebft qu\u1ea3 r\u00f2ng. Ph\u00ed pool v\u00e0 t\u00e1c \u0111\u1ed9ng gi\u00e1 \u0111\u01b0\u1ee3c t\u00ednh t\u1eeb pool v\u00ed d\u1ee5; ph\u00ed s\u00e0n, tr\u01b0\u1ee3t gi\u00e1 ph\u00f2ng h\u1ed9, gas v\u00e0 tip cho builder l\u00e0 c\u00e1c gi\u1ea3 \u0111\u1ecbnh minh h\u1ecda. V\u00ed d\u1ee5 minh h\u1ecda, kh\u00f4ng ph\u1ea3i giao d\u1ecbch \u0111\u00e3 \u0111o l\u01b0\u1eddng.<\/figcaption><\/figure>\n<p>C\u00f3 ba b\u00e0i h\u1ecdc r\u00fat ra t\u1eeb v\u00ed d\u1ee5 n\u00e0y:<\/p>\n<ul class=\"cdx-checks\">\n<li><strong>Ch\u00eanh l\u1ec7ch nh\u00ecn th\u1ea5y kh\u00f4ng ph\u1ea3i l\u00e0 l\u1ee3i nhu\u1eadn.<\/strong> Tr\u00ean pool 0.3%, kho\u1ea3ng hai ph\u1ea7n ba ch\u00eanh l\u1ec7ch 1% bi\u1ebfn m\u1ea5t v\u00e0o ph\u00ed pool v\u00e0 t\u00e1c \u0111\u1ed9ng gi\u00e1 tr\u01b0\u1edbc c\u1ea3 khi c\u00f3 b\u1ea5t k\u1ef3 chi ph\u00ed b\u00ean ngo\u00e0i n\u00e0o.<\/li>\n<li><strong>Quy m\u00f4 do pool quy\u1ebft \u0111\u1ecbnh, kh\u00f4ng ph\u1ea3i do v\u1ed1n c\u1ee7a b\u1ea1n.<\/strong> C\u00f3 1 tri\u1ec7u USDC c\u0169ng kh\u00f4ng gi\u00fap \u00edch: m\u1ecdi kho\u1ea3n v\u01b0\u1ee3t qu\u00e1 quy m\u00f4 t\u1ed1i \u01b0u \u0111\u1ec1u thua l\u1ed7.<\/li>\n<li><strong>Chi ph\u00ed bi\u1ebfn \u0111\u1ed5i l\u1edbn nh\u1ea5t l\u00e0 c\u1ea1nh tranh.<\/strong> Ph\u1ea7n tr\u1ea3 cho v\u1ecb tr\u00ed trong block c\u00f3 th\u1ec3 t\u1eeb nh\u1ecf tr\u00ean m\u1ed9t c\u1eb7p \u00edt ng\u01b0\u1eddi \u0111\u1ec3 \u00fd \u0111\u1ebfn g\u1ea7n nh\u01b0 to\u00e0n b\u1ed9 l\u1ee3i th\u1ebf tr\u00ean m\u1ed9t c\u1eb7p b\u1ecb tranh gi\u00e0nh. Khi nhi\u1ec1u bot c\u00f9ng th\u1ea5y m\u1ed9t ch\u00eanh l\u1ec7ch, ch\u00fang tr\u1ea3 gi\u00e1 c\u1ea1nh tranh \u0111\u1ebfn m\u1ee9c gi\u00e1 tr\u1ecb \u0111\u00f3 chuy\u1ec3n h\u1ebft cho b\u00ean t\u1ea1o block.<\/li>\n<\/ul>\n<div class=\"cdx-cards\">\n<div class=\"cdx-card\"><span class=\"cdx-card-v\">1.00%<\/span><span class=\"cdx-card-l\">Ch\u00eanh l\u1ec7ch nh\u00ecn th\u1ea5y<\/span><span class=\"cdx-card-n\">Gi\u00e1 t\u1eadp trung so v\u1edbi gi\u00e1 pool t\u1ea1i \u0111\u1ea7u block.<\/span><\/div>\n<div class=\"cdx-card\"><span class=\"cdx-card-v\">0.35%<\/span><span class=\"cdx-card-l\">L\u1ee3i th\u1ebf on-chain g\u1ed9p<\/span><span class=\"cdx-card-n\">85 USDC tr\u00ean 24,400 sau ph\u00ed pool 0.3% v\u00e0 t\u00e1c \u0111\u1ed9ng gi\u00e1.<\/span><\/div>\n<div class=\"cdx-card\"><span class=\"cdx-card-v\">~0.13%<\/span><span class=\"cdx-card-l\">R\u00f2ng sau m\u1ecdi chi ph\u00ed<\/span><span class=\"cdx-card-n\">Sau ph\u00ed s\u00e0n, tr\u01b0\u1ee3t gi\u00e1 ph\u00f2ng h\u1ed9, gas v\u00e0 tip minh h\u1ecda 50% cho builder.<\/span><\/div>\n<\/div>\n<p class=\"cdx-note\">V\u00ed d\u1ee5 minh h\u1ecda \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng t\u1eeb c\u00f4ng th\u1ee9c t\u00edch kh\u00f4ng \u0111\u1ed5i v\u00e0 c\u00e1c gi\u1ea3 \u0111\u1ecbnh \u0111\u00e3 n\u00eau. Pool, ph\u00ed v\u00e0 m\u1ee9c c\u1ea1nh tranh th\u1ef1c t\u1ebf s\u1ebd kh\u00e1c.<\/p>\n<h2 id=\"cdx-breakeven\">V\u00f9ng kh\u00f4ng giao d\u1ecbch: ch\u00eanh l\u1ec7ch ph\u1ea3i l\u1edbn \u0111\u1ebfn m\u1ee9c n\u00e0o<\/h2>\n<p>M\u1ed9t quy t\u1eafc kinh nghi\u1ec7m h\u1eefu \u00edch: <strong>ch\u00eanh l\u1ec7ch CEX-DEX ch\u1ec9 c\u00f3 th\u1ec3 giao d\u1ecbch khi v\u01b0\u1ee3t qu\u00e1 t\u1ed5ng ph\u00ed pool v\u00e0 ph\u00ed s\u00e0n t\u1eadp trung<\/strong>, v\u00e0 ch\u1ec9 \u0111\u00e1ng c\u00f4ng s\u1ee9c khi v\u01b0\u1ee3t qu\u00e1 t\u1ed5ng \u0111\u00f3 \u0111\u1ee7 \u0111\u1ec3 tr\u1ea3 gas v\u00e0 chi ph\u00ed v\u1ecb tr\u00ed trong block. D\u01b0\u1edbi ng\u01b0\u1ee1ng n\u00e0y, quy m\u00f4 giao d\u1ecbch t\u1ed1i \u01b0u b\u1eb1ng 0. \u0110\u00e2y l\u00e0 v\u00f9ng kh\u00f4ng giao d\u1ecbch.<\/p>\n<div class=\"cdx-code\">ch\u00eanh l\u1ec7ch t\u1ed1i thi\u1ec3u \u2248 ph\u00ed pool + ph\u00ed CEX + (gas + tip) \/ quy m\u00f4 giao d\u1ecbch + tr\u01b0\u1ee3t gi\u00e1 ph\u00f2ng h\u1ed9<\/div>\n<p>Bi\u1ec3u \u0111\u1ed3 d\u01b0\u1edbi \u0111\u00e2y gi\u1eef nguy\u00ean \u0111\u1ed9 s\u00e2u pool v\u00e0 so s\u00e1nh pool 0.3% v\u1edbi pool 0.05%, m\u1ed7i lo\u1ea1i v\u1edbi gas ki\u1ec3u mainnet (3 USDC) v\u00e0 gas ki\u1ec3u rollup (0.05 USDC). Pool 0.05% \u1edf \u0111\u00e2y c\u00f3 c\u00f9ng \u0111\u1ed9 s\u00e2u v\u1edbi pool 0.3%, \u0111i\u1ec1u n\u00e0y khi\u1ebfn n\u00f3 tr\u00f4ng c\u00f3 l\u1ee3i h\u01a1n th\u1ef1c t\u1ebf; tr\u00ean th\u1ef1c t\u1ebf, c\u00e1c pool ph\u00ed th\u1ea5p th\u01b0\u1eddng l\u00e0 pool c\u00f3 thanh kho\u1ea3n s\u00e2u cho c\u00e1c c\u1eb7p ch\u00ednh, v\u00e0 c\u0169ng b\u1ecb c\u1ea1nh tranh gay g\u1eaft nh\u1ea5t.<\/p>\n<figure class=\"cdx-figure\"><img decoding=\"async\" src=\"https:\/\/bjftradinggroup.com\/wp-content\/uploads\/2026\/11\/break-even-gap-cex-dex-arbitrage-1760x800-1.webp\" alt=\"L\u1ee3i nhu\u1eadn r\u00f2ng c\u1ee7a arbitrage CEX-DEX \u1edf quy m\u00f4 t\u1ed1i \u01b0u theo m\u1ee9c ch\u00eanh l\u1ec7ch gi\u00e1, v\u1edbi ph\u00ed pool 0.3% v\u00e0 0.05% v\u00e0 hai m\u1ee9c gas (minh h\u1ecda)\" width=\"1760\" height=\"800\" loading=\"lazy\"><figcaption>K\u1ebft qu\u1ea3 r\u00f2ng \u1edf quy m\u00f4 t\u1ed1i \u01b0u theo ch\u00eanh l\u1ec7ch gi\u1eefa gi\u00e1 t\u1eadp trung v\u00e0 gi\u00e1 pool. Kh\u00f4ng c\u00f3 g\u00ec giao d\u1ecbch \u0111\u01b0\u1ee3c cho \u0111\u1ebfn khi ch\u00eanh l\u1ec7ch v\u01b0\u1ee3t qua t\u1ed5ng ph\u00ed pool v\u00e0 ph\u00ed s\u00e0n; gas ch\u1ec9 quan tr\u1ecdng v\u1edbi ch\u00eanh l\u1ec7ch nh\u1ecf. Ch\u01b0a bao g\u1ed3m tip cho builder. M\u00f4 h\u00ecnh minh h\u1ecda, c\u00f9ng \u0111\u1ed9 s\u00e2u pool cho c\u1ea3 hai m\u1ee9c ph\u00ed.<\/figcaption><\/figure>\n<div class=\"cdx-table-wrap\">\n<table class=\"cdx-table\">\n<thead>\n<tr>\n<th>Ch\u00eanh l\u1ec7ch<\/th>\n<th>Pool 0.3%, gas 3<\/th>\n<th>Pool 0.3%, gas 0.05<\/th>\n<th>Pool 0.05%, gas 3<\/th>\n<th>Pool 0.05%, gas 0.05<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>0.2%<\/td>\n<td>kh\u00f4ng giao d\u1ecbch<\/td>\n<td>kh\u00f4ng giao d\u1ecbch<\/td>\n<td>\u22122<\/td>\n<td>+1<\/td>\n<\/tr>\n<tr>\n<td>0.4%<\/td>\n<td>\u22123<\/td>\n<td>0<\/td>\n<td>+12<\/td>\n<td>+15<\/td>\n<\/tr>\n<tr>\n<td>0.6%<\/td>\n<td>+7<\/td>\n<td>+10<\/td>\n<td>+40<\/td>\n<td>+43<\/td>\n<\/tr>\n<tr>\n<td>1.0%<\/td>\n<td>+70<\/td>\n<td>+73<\/td>\n<td>+137<\/td>\n<td>+140<\/td>\n<\/tr>\n<tr>\n<td>2.0%<\/td>\n<td>+467<\/td>\n<td>+470<\/td>\n<td>+621<\/td>\n<td>+624<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"cdx-note\">USDC r\u00f2ng \u1edf quy m\u00f4 t\u1ed1i \u01b0u, tr\u01b0\u1edbc tip cho builder, cho pool v\u00ed d\u1ee5 (2,000 ETH \/ 7,000,000 USDC) v\u1edbi ph\u00ed s\u00e0n 0.05%. M\u00f4 h\u00ecnh minh h\u1ecda.<\/p>\n<p>C\u00f3 hai \u0111i\u1ec3m n\u1ed5i b\u1eadt. Th\u1ee9 nh\u1ea5t, l\u1ee3i nhu\u1eadn t\u0103ng nhanh h\u01a1n nhi\u1ec1u so v\u1edbi ch\u00eanh l\u1ec7ch: t\u0103ng g\u1ea5p \u0111\u00f4i ch\u00eanh l\u1ec7ch t\u1eeb 1% l\u00ean 2% nh\u00e2n k\u1ebft qu\u1ea3 l\u00ean s\u00e1u l\u1ea7n tr\u1edf l\u00ean, v\u00ec c\u1ea3 quy m\u00f4 t\u1ed1i \u01b0u l\u1eabn bi\u00ean l\u1ee3i nhu\u1eadn tr\u00ean m\u1ed7i \u0111\u01a1n v\u1ecb \u0111\u1ec1u t\u0103ng. \u0110\u00f3 l\u00e0 l\u00fd do c\u00e1c bot arbitrage quan t\u00e2m nh\u1ea5t \u0111\u1ebfn nh\u1eefng \u0111\u1ee3t l\u1ec7ch gi\u00e1 l\u1edbn hi\u1ebfm hoi trong c\u00e1c bi\u1ebfn \u0111\u1ed9ng m\u1ea1nh. Th\u1ee9 hai, gas ch\u1ec9 mang t\u00ednh quy\u1ebft \u0111\u1ecbnh khi \u1edf g\u1ea7n ng\u01b0\u1ee1ng. Tr\u00ean chu\u1ed7i r\u1ebb, b\u1ea1n c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh c\u00e1c ch\u00eanh l\u1ec7ch nh\u1ecf h\u01a1n; tr\u00ean mainnet, nh\u1eefng ch\u00eanh l\u1ec7ch nh\u1ecf kh\u00f4ng \u0111\u00e1ng \u0111\u1ec3 g\u1eedi giao d\u1ecbch.<\/p>\n<h2 id=\"cdx-legs\">Hai ch\u00e2n l\u1ec7nh, kh\u00f4ng c\u00f3 t\u00ednh nguy\u00ean t\u1eed: r\u1ee7i ro th\u1ef1c thi<\/h2>\n<p>Arbitrage thu\u1ea7n on-chain gi\u1eefa hai pool c\u00f3 th\u1ec3 mang t\u00ednh <em>nguy\u00ean t\u1eed<\/em>: c\u1ea3 hai l\u1ec7nh swap n\u1eb1m trong m\u1ed9t giao d\u1ecbch, v\u00e0 n\u1ebfu k\u1ebft qu\u1ea3 kh\u00f4ng c\u00f3 l\u00e3i th\u00ec giao d\u1ecbch b\u1ecb ho\u00e0n t\u00e1c. Arbitrage CEX-DEX kh\u00f4ng th\u1ec3 mang t\u00ednh nguy\u00ean t\u1eed. M\u1ed9t ch\u00e2n l\u00e0 giao d\u1ecbch blockchain, ch\u00e2n kia l\u00e0 l\u1ec7nh tr\u00ean c\u00f4ng c\u1ee5 kh\u1edbp l\u1ec7nh c\u1ee7a m\u1ed9t c\u00f4ng ty. Gi\u1eefa ch\u00fang lu\u00f4n c\u00f3 th\u1ec3 x\u1ea3y ra s\u1ef1 c\u1ed1.<\/p>\n<h3>Ch\u00e2n n\u00e0o tr\u01b0\u1edbc?<\/h3>\n<div class=\"cdx-table-wrap\">\n<table class=\"cdx-table\">\n<thead>\n<tr>\n<th>Th\u1ee9 t\u1ef1<\/th>\n<th>\u01afu \u0111i\u1ec3m<\/th>\n<th>R\u1ee7i ro<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Swap on-chain tr\u01b0\u1edbc, ph\u00f2ng h\u1ed9 sau khi \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o block<\/td>\n<td>B\u1ea1n ch\u1ec9 ph\u00f2ng h\u1ed9 ph\u1ea7n th\u1ef1c s\u1ef1 \u0111\u00e3 kh\u1edbp; kh\u00f4ng ph\u00f2ng h\u1ed9 cho l\u1ec7nh swap b\u1ecb ho\u00e0n t\u00e1c<\/td>\n<td>Ch\u1ecbu r\u1ee7i ro th\u1ecb tr\u01b0\u1eddng t\u1eeb l\u00fac g\u1eedi \u0111\u1ebfn khi block \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn (t\u1ed1i \u0111a m\u1ed9t block ho\u1eb7c h\u01a1n)<\/td>\n<\/tr>\n<tr>\n<td>Ph\u00f2ng h\u1ed9 tr\u00ean CEX tr\u01b0\u1edbc, sau \u0111\u00f3 g\u1eedi l\u1ec7nh swap<\/td>\n<td>Ch\u1ed1t gi\u00e1 t\u1eadp trung ngay l\u1eadp t\u1ee9c<\/td>\n<td>N\u1ebfu l\u1ec7nh swap kh\u00f4ng \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o block, b\u1ecb ho\u00e0n t\u00e1c ho\u1eb7c b\u1ecb bot kh\u00e1c v\u01b0\u1ee3t m\u1eb7t, b\u1ea1n gi\u1eef m\u1ed9t v\u1ecb th\u1ebf kh\u00f4ng mong mu\u1ed1n tr\u00ean CEX<\/td>\n<\/tr>\n<tr>\n<td>C\u1ea3 hai c\u00f9ng l\u00fac<\/td>\n<td>T\u1ed5ng th\u1eddi gian ch\u1ecbu r\u1ee7i ro ng\u1eafn nh\u1ea5t<\/td>\n<td>C\u1ea3 hai ki\u1ec3u th\u1ea5t b\u1ea1i \u0111\u1ec1u c\u00f3 th\u1ec3 x\u1ea3y ra; c\u1ea7n logic \u0111\u00f3ng v\u1ecb th\u1ebf t\u1ef1 \u0111\u1ed9ng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>C\u00e1c searcher chuy\u00ean nghi\u1ec7p tr\u00ean chu\u1ed7i nhanh th\u01b0\u1eddng g\u1eedi c\u1ea3 hai ch\u00e2n g\u1ea7n nh\u01b0 \u0111\u1ed3ng th\u1eddi v\u00e0 qu\u1ea3n l\u00fd v\u1ecb th\u1ebf c\u00f2n l\u1ea1i b\u1eb1ng c\u01a1 ch\u1ebf \u0111\u00f3ng t\u1ef1 \u0111\u1ed9ng. D\u00f9 theo th\u1ee9 t\u1ef1 n\u00e0o, b\u1ea1n c\u0169ng c\u1ea7n m\u1ed9t quy t\u1eafc r\u00f5 r\u00e0ng cho tr\u01b0\u1eddng h\u1ee3p th\u1ea5t b\u1ea1i: ch\u1edd \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o block bao l\u00e2u, ch\u1ea5p nh\u1eadn l\u1ed7 \u0111\u1ebfn m\u1ee9c n\u00e0o th\u00ec \u0111\u00f3ng ch\u00e2n l\u1ec7nh b\u1ecb b\u1ecf l\u1ea1i, v\u00e0 l\u00e0m sao tr\u00e1nh g\u1eedi c\u00f9ng m\u1ed9t c\u01a1 h\u1ed9i hai l\u1ea7n.<\/p>\n<h3>B\u1ea3o v\u1ec7 ch\u00ednh l\u1ec7nh swap<\/h3>\n<p>L\u1ec7nh swap g\u1eedi v\u00e0o mempool c\u00f4ng khai c\u00f3 th\u1ec3 b\u1ecb c\u00e1c bot kh\u00e1c nh\u00ecn th\u1ea5y v\u00e0 sao ch\u00e9p, ho\u1eb7c ch\u1ea1y tr\u01b0\u1edbc (front-run). C\u00f3 hai bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 ti\u00eau chu\u1ea9n: tham s\u1ed1 <strong>\u0111\u1ea7u ra t\u1ed1i thi\u1ec3u<\/strong> \u0111\u1ec3 l\u1ec7nh swap b\u1ecb ho\u00e0n t\u00e1c thay v\u00ec kh\u1edbp \u1edf gi\u00e1 x\u1ea5u, v\u00e0 <strong>g\u1eedi ri\u00eang t\u01b0<\/strong> (g\u1eedi giao d\u1ecbch ho\u1eb7c bundle tr\u1ef1c ti\u1ebfp \u0111\u1ebfn block builder ho\u1eb7c qua relay \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 thay v\u00ec mempool c\u00f4ng khai). M\u1ed9t giao d\u1ecbch b\u1ecb ho\u00e0n t\u00e1c v\u1eabn c\u00f3 th\u1ec3 t\u1ed1n gas tr\u00ean c\u00e1c chu\u1ed7i m\u00e0 giao d\u1ecbch th\u1ea5t b\u1ea1i v\u1eabn \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o block, \u0111\u00f3 l\u00e0 th\u00eam m\u1ed9t l\u00fd do \u0111\u1ec3 m\u00f4 ph\u1ecfng tr\u01b0\u1edbc khi g\u1eedi.<\/p>\n<h2 id=\"cdx-mev\">MEV, block builder v\u00e0 ai th\u1eafng cu\u1ed9c \u0111ua<\/h2>\n<p>Arbitrage CEX-DEX l\u00e0 m\u1ed9t d\u1ea1ng MEV (gi\u00e1 tr\u1ecb c\u00f3 th\u1ec3 tr\u00edch xu\u1ea5t t\u1ed1i \u0111a): l\u1ee3i nhu\u1eadn ph\u1ee5 thu\u1ed9c v\u00e0o v\u1ecb tr\u00ed c\u1ee7a giao d\u1ecbch trong block. M\u1ecdi bot nh\u00ecn th\u1ea5y ch\u00eanh l\u1ec7ch \u0111\u1ec1u mu\u1ed1n l\u00e0 l\u1ec7nh swap \u0111\u1ea7u ti\u00ean sau khi gi\u00e1 pool tr\u1edf n\u00ean l\u1ed7i th\u1eddi. B\u00ean t\u1ea1o block quy\u1ebft \u0111\u1ecbnh th\u1ee9 t\u1ef1, n\u00ean c\u00e1c bot c\u1ea1nh tranh b\u1eb1ng c\u00e1ch tr\u1ea3 ti\u1ec1n cho b\u00ean t\u1ea1o block.<\/p>\n<ul class=\"cdx-checks\">\n<li><strong>Tr\u00ean Ethereum mainnet<\/strong>, block \u0111\u01b0\u1ee3c l\u1eafp r\u00e1p b\u1edfi c\u00e1c builder chuy\u00ean bi\u1ec7t t\u1ed5 ch\u1ee9c \u0111\u1ea5u gi\u00e1 th\u1ee9 t\u1ef1 giao d\u1ecbch. Searcher g\u1eedi bundle k\u00e8m kho\u1ea3n thanh to\u00e1n cho builder; gi\u00e1 th\u1ea7u hi\u1ec7u qu\u1ea3 cao nh\u1ea5t th\u01b0\u1eddng gi\u00e0nh \u0111\u01b0\u1ee3c v\u1ecb tr\u00ed \u0111\u1ea7u ti\u00ean. C\u00e1c nghi\u00ean c\u1ee9u \u0111o l\u01b0\u1eddng v\u1ec1 arbitrage CEX-DEX tr\u00ean mainnet (v\u00ed d\u1ee5 b\u00e0i b\u00e1o n\u0103m 2025 &#8220;Measuring CEX-DEX Extracted Value and Searcher Profitability&#8221;) cho bi\u1ebft ho\u1ea1t \u0111\u1ed9ng n\u00e0y b\u1ecb chi ph\u1ed1i b\u1edfi m\u1ed9t nh\u00f3m nh\u1ecf searcher, trong \u0111\u00f3 m\u1ed9t s\u1ed1 c\u00f3 li\u00ean h\u1ec7 ch\u1eb7t ch\u1ebd v\u1edbi block builder, v\u00e0 m\u1ed9t ph\u1ea7n l\u1edbn gi\u00e1 tr\u1ecb g\u1ed9p \u0111\u01b0\u1ee3c chuy\u1ec3n cho builder v\u00e0 validator.<\/li>\n<li><strong>Tr\u00ean rollup<\/strong>, m\u1ed9t sequencer duy nh\u1ea5t s\u1eafp x\u1ebfp th\u1ee9 t\u1ef1 giao d\u1ecbch. T\u00f9y theo chu\u1ed7i, th\u1ee9 t\u1ef1 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh theo nguy\u00ean t\u1eafc \u0111\u1ebfn tr\u01b0\u1edbc ph\u1ee5c v\u1ee5 tr\u01b0\u1edbc, d\u1ef1a tr\u00ean ph\u00ed \u01b0u ti\u00ean, ho\u1eb7c \u0111\u01b0\u1ee3c b\u00e1n qua \u0111\u1ea5u gi\u00e1 \u0111\u1ec3 c\u00f3 l\u1ee3i th\u1ebf xu\u1ea5t ph\u00e1t ng\u1eafn. \u0110\u1ed9 tr\u1ec5 \u0111\u1ebfn sequencer v\u00e0 ch\u00ednh s\u00e1ch ph\u00ed quy\u1ebft \u0111\u1ecbnh ai th\u1eafng.<\/li>\n<li><strong>Tr\u00ean c\u00e1c chu\u1ed7i th\u00f4ng l\u01b0\u1ee3ng cao<\/strong> v\u1edbi block d\u01b0\u1edbi m\u1ed9t gi\u00e2y, c\u1ea1nh tranh xoay quanh \u0111\u1ed9 tr\u1ec5 m\u1ea1ng, ch\u1ea5t l\u01b0\u1ee3ng k\u1ebft n\u1ed1i v\u1edbi b\u00ean t\u1ea1o block v\u00e0 c\u00e1c kho\u1ea3n thanh to\u00e1n ph\u1ee5 m\u00e0 h\u1ec7 sinh th\u00e1i c\u1ee7a chu\u1ed7i \u0111\u00f3 d\u00f9ng \u0111\u1ec3 gi\u00e0nh \u01b0u ti\u00ean.<\/li>\n<\/ul>\n<p>H\u1ec7 qu\u1ea3 th\u1ef1c t\u1ebf: m\u1ed9t trader \u0111\u1ed9c l\u1eadp d\u00f9ng bot t\u1ef1 x\u00e2y d\u1ef1ng hi\u1ebfm khi th\u1eafng \u0111\u01b0\u1ee3c nh\u1eefng c\u01a1 h\u1ed9i CEX-DEX d\u1ec5 th\u1ea5y nh\u1ea5t tr\u00ean c\u00e1c c\u1eb7p ch\u00ednh. L\u1ee3i th\u1ebf c\u1ee7a ng\u01b0\u1eddi chi\u1ebfn th\u1eafng l\u00e0 s\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa d\u1eef li\u1ec7u th\u1ecb tr\u01b0\u1eddng nhanh nh\u1ea5t t\u1eeb s\u00e0n t\u1eadp trung, k\u1ebft n\u1ed1i \u0111\u1ed9 tr\u1ec5 th\u1ea5p t\u1edbi builder ho\u1eb7c sequencer, v\u1ed1n t\u1ed3n kho l\u1edbn \u1edf c\u1ea3 hai ph\u00eda, ph\u00ed s\u00e0n r\u1ea5t th\u1ea5p nh\u1edd c\u1ea5p kh\u1ed1i l\u01b0\u1ee3ng cao, v\u00e0 trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p l\u00e0 lu\u1ed3ng l\u1ec7nh \u0111\u1eb7c quy\u1ec1n. Nh\u1eefng g\u00ec c\u00f2n l\u1ea1i cho ng\u01b0\u1eddi ch\u01a1i nh\u1ecf th\u01b0\u1eddng l\u00e0 token \u0111u\u00f4i d\u00e0i, c\u00e1c pool v\u00e0 chu\u1ed7i \u00edt \u0111\u01b0\u1ee3c theo d\u00f5i, v\u00e0 nh\u1eefng th\u1eddi \u0111i\u1ec3m bi\u1ebfn \u0111\u1ed9ng c\u1ef1c \u0111oan, t\u1ea5t c\u1ea3 \u0111\u1ec1u \u0111i k\u00e8m r\u1ee7i ro cao h\u01a1n.<\/p>\n<div class=\"cdx-box\"><strong>\u0110\u1ed9 tr\u1ec5 quan tr\u1ecdng \u1edf c\u1ea3 hai ph\u00eda.<\/strong> Bot \u0111\u1ea7u ti\u00ean th\u1ea5y gi\u00e1 t\u1eadp trung bi\u1ebfn \u0111\u1ed9ng s\u1ebd l\u00e0 bot \u0111\u1ea7u ti\u00ean bi\u1ebft r\u1eb1ng gi\u00e1 pool \u0111\u00e3 l\u1ed7i th\u1eddi. \u0110\u00f3 c\u0169ng ch\u00ednh l\u00e0 cu\u1ed9c \u0111ua m\u00e0 ch\u00fang t\u00f4i m\u00f4 t\u1ea3 cho <a href=\"https:\/\/bjftradinggroup.com\/crypto-exchange-api-arbitrage\/\">arbitrage qua API s\u00e0n giao d\u1ecbch<\/a>: lu\u1ed3ng d\u1eef li\u1ec7u WebSocket, co-location g\u1ea7n c\u00f4ng c\u1ee5 kh\u1edbp l\u1ec7nh c\u1ee7a s\u00e0n v\u00e0 nh\u1eadp l\u1ec7nh nhanh. Ph\u00eda on-chain ch\u1ec9 th\u00eam m\u1ed9t cu\u1ed9c \u0111ua th\u1ee9 hai l\u00ean tr\u00ean.<\/div>\n<h2 id=\"cdx-chains\">L\u1ef1a ch\u1ecdn chu\u1ed7i: Ethereum, rollup v\u00e0 chu\u1ed7i t\u1ed1c \u0111\u1ed9 cao<\/h2>\n<p>C\u00f9ng m\u1ed9t chi\u1ebfn l\u01b0\u1ee3c ho\u1ea1t \u0111\u1ed9ng r\u1ea5t kh\u00e1c nhau t\u00f9y theo n\u01a1i pool t\u1ed3n t\u1ea1i. B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y l\u00e0 \u0111\u1ecbnh h\u01b0\u1edbng chung t\u1ea1i th\u1eddi \u0111i\u1ec3m vi\u1ebft b\u00e0i; th\u1eddi gian block, th\u1ecb tr\u01b0\u1eddng ph\u00ed v\u00e0 quy t\u1eafc s\u1eafp x\u1ebfp thay \u0111\u1ed5i theo c\u00e1c b\u1ea3n n\u00e2ng c\u1ea5p, v\u00ec v\u1eady h\u00e3y ki\u1ec3m tra t\u00e0i li\u1ec7u hi\u1ec7n h\u00e0nh c\u1ee7a t\u1eebng chu\u1ed7i.<\/p>\n<div class=\"cdx-table-wrap\">\n<table class=\"cdx-table\">\n<thead>\n<tr>\n<th>Lo\u1ea1i n\u01a1i giao d\u1ecbch<\/th>\n<th>Kho\u1ea3ng th\u1eddi gian block<\/th>\n<th>C\u00e1ch quy\u1ebft \u0111\u1ecbnh th\u1ee9 t\u1ef1<\/th>\n<th>H\u1ec7 qu\u1ea3 \u0111i\u1ec3n h\u00ecnh<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Ethereum mainnet<\/td>\n<td>12 gi\u00e2y<\/td>\n<td>\u0110\u1ea5u gi\u00e1 c\u1ee7a builder (bundle k\u00e8m thanh to\u00e1n)<\/td>\n<td>Pool l\u1edbn nh\u1ea5t, gas cao nh\u1ea5t, c\u1ea1nh tranh gay g\u1eaft; ch\u00eanh l\u1ec7ch t\u00edch t\u1ee5 trong 12 gi\u00e2y v\u00e0 ng\u01b0\u1eddi tr\u1ea3 gi\u00e1 cao nh\u1ea5t gi\u00e0nh \u0111\u01b0\u1ee3c<\/td>\n<\/tr>\n<tr>\n<td>Rollup c\u1ee7a Ethereum<\/td>\n<td>Kho\u1ea3ng 0.25 \u0111\u1ebfn 2 gi\u00e2y, t\u00f9y rollup<\/td>\n<td>M\u1ed9t sequencer duy nh\u1ea5t: \u0111\u1ebfn tr\u01b0\u1edbc ph\u1ee5c v\u1ee5 tr\u01b0\u1edbc, ph\u00ed \u01b0u ti\u00ean ho\u1eb7c \u0111\u1ea5u gi\u00e1 time-boost<\/td>\n<td>Gas r\u1ea5t th\u1ea5p, ch\u00eanh l\u1ec7ch m\u1ed7i block nh\u1ecf h\u01a1n, \u0111\u1ed9 tr\u1ec5 \u0111\u1ebfn sequencer l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t<\/td>\n<\/tr>\n<tr>\n<td>Chu\u1ed7i L1 th\u00f4ng l\u01b0\u1ee3ng cao<\/td>\n<td>D\u01b0\u1edbi m\u1ed9t gi\u00e2y<\/td>\n<td>D\u1ef1a tr\u00ean leader, v\u1edbi c\u00e1c kho\u1ea3n thanh to\u00e1n \u01b0u ti\u00ean ri\u00eang c\u1ee7a t\u1eebng chu\u1ed7i<\/td>\n<td>Nhi\u1ec1u c\u01a1 h\u1ed9i nh\u1ecf, ho\u00e0n t\u00e1c nhanh v\u00e0 spam, \u0111\u00f2i h\u1ecfi h\u1ea1 t\u1ea7ng l\u1edbn<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>Block ng\u1eafn h\u01a1n l\u00e0m gi\u1ea3m quy m\u00f4 c\u1ee7a m\u1ed7i l\u1ea7n \u0111\u1ecbnh gi\u00e1 sai, v\u00ec pool \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh th\u01b0\u1eddng xuy\u00ean h\u01a1n, nh\u01b0ng l\u00e0m t\u0103ng s\u1ed1 l\u01b0\u1ee3ng c\u01a1 h\u1ed9i. Gas th\u1ea5p h\u01a1n l\u00e0m h\u1eb9p v\u00f9ng kh\u00f4ng giao d\u1ecbch. Kh\u00f4ng y\u1ebfu t\u1ed1 n\u00e0o thay \u0111\u1ed5i \u0111\u01b0\u1ee3c th\u1ef1c t\u1ebf r\u1eb1ng ph\u00ed pool v\u00e0 ph\u00ed s\u00e0n t\u1eadp trung \u0111\u1eb7t ra m\u1ee9c s\u00e0n cho m\u1ecdi giao d\u1ecbch.<\/p>\n<h2 id=\"cdx-inventory\">V\u1ed1n t\u1ed3n kho, t\u00e1i c\u00e2n b\u1eb1ng v\u00e0 c\u1ea7u n\u1ed1i<\/h2>\n<p>V\u00ec hai ch\u00e2n l\u1ec7nh \u0111\u01b0\u1ee3c thanh to\u00e1n \u1edf nh\u1eefng n\u01a1i kh\u00e1c nhau, b\u1ea1n c\u1ea7n c\u00f3 v\u1ed1n \u1edf c\u1ea3 hai ph\u00eda tr\u01b0\u1edbc khi giao d\u1ecbch: stablecoin v\u00e0 token trong v\u00ed on-chain, v\u00e0 c\u00f9ng c\u00e1c t\u00e0i s\u1ea3n \u0111\u00f3 tr\u00ean s\u00e0n t\u1eadp trung. M\u1ed7i giao d\u1ecbch arbitrage c\u00f9ng chi\u1ec1u l\u1ea1i r\u00fat c\u1ea1n m\u1ed9t ph\u00eda. Sau m\u1ed9t lo\u1ea1t giao d\u1ecbch &#8220;mua tr\u00ean DEX, b\u00e1n tr\u00ean CEX&#8221;, v\u00ed c\u1ee7a b\u1ea1n ch\u1ee7 y\u1ebfu gi\u1eef ETH c\u00f2n t\u00e0i kho\u1ea3n s\u00e0n ch\u1ee7 y\u1ebfu gi\u1eef USDC.<\/p>\n<p>T\u00e1i c\u00e2n b\u1eb1ng ngh\u0129a l\u00e0 chuy\u1ec3n ti\u1ec1n gi\u1eefa v\u00ed v\u00e0 s\u00e0n: n\u1ea1p, r\u00fat, \u0111\u00f4i khi d\u00f9ng c\u1ea7u n\u1ed1i gi\u1eefa c\u00e1c chu\u1ed7i. M\u1ed7i l\u1ea7n chuy\u1ec3n \u0111\u1ec1u c\u00f3 ph\u00ed, th\u1eddi gian x\u00e1c nh\u1eadn v\u00e0 r\u1ee7i ro gi\u00e1 khi ti\u1ec1n \u0111ang tr\u00ean \u0111\u01b0\u1eddng chuy\u1ec3n. Ch\u00fang t\u00f4i \u0111\u00e3 l\u01b0\u1ee3ng h\u00f3a chi ti\u1ebft c\u00e1c chi ph\u00ed n\u00e0y trong b\u00e0i <a href=\"https:\/\/bjftradinggroup.com\/crypto-arbitrage-withdrawal-fees-transfer-times\/\">ph\u00ed r\u00fat, m\u1ea1ng l\u01b0\u1edbi v\u00e0 th\u1eddi gian chuy\u1ec3n cho arbitrage gi\u1eefa c\u00e1c s\u00e0n<\/a>; ph\u00e9p t\u00ednh t\u01b0\u01a1ng t\u1ef1 c\u0169ng \u00e1p d\u1ee5ng \u1edf \u0111\u00e2y. M\u1ed9t quy t\u1eafc th\u1ef1c t\u1ebf: ph\u00e2n b\u1ed5 chi ph\u00ed t\u00e1i c\u00e2n b\u1eb1ng d\u1ef1 ki\u1ebfn cho s\u1ed1 giao d\u1ecbch m\u00e0 m\u1ed9t l\u1ea7n t\u00e1i c\u00e2n b\u1eb1ng h\u1ed7 tr\u1ee3, r\u1ed3i c\u1ed9ng n\u00f3 v\u00e0o m\u1ee9c ch\u00eanh l\u1ec7ch t\u1ed1i thi\u1ec3u. M\u1ed9t chi\u1ebfn l\u01b0\u1ee3c tr\u00f4ng c\u00f3 l\u00e3i theo t\u1eebng giao d\u1ecbch v\u1eabn c\u00f3 th\u1ec3 thua l\u1ed7 khi t\u00ednh c\u1ea3 chi ph\u00ed t\u00e1i c\u00e2n b\u1eb1ng.<\/p>\n<p>C\u1ea7u n\u1ed1i b\u1ed5 sung m\u1ed9t lo\u1ea1i r\u1ee7i ro ri\u00eang: l\u1ed7i h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh, t\u1ea1m d\u1eebng r\u00fat ti\u1ec1n v\u00e0 ch\u1eadm tr\u1ec5. H\u00e3y gi\u1eef s\u1ed1 d\u01b0 tr\u00ean c\u1ea7u n\u1ed1i \u1edf m\u1ee9c nh\u1ecf nh\u1ea5t m\u00e0 chi\u1ebfn l\u01b0\u1ee3c cho ph\u00e9p.<\/p>\n<h2 id=\"cdx-steps\">T\u1eebng b\u01b0\u1edbc: \u0111\u00e1nh gi\u00e1 m\u1ed9t c\u01a1 h\u1ed9i<\/h2>\n<p>Tr\u01b0\u1edbc khi t\u1ef1 \u0111\u1ed9ng h\u00f3a b\u1ea5t c\u1ee9 \u0111i\u1ec1u g\u00ec, h\u00e3y cho m\u1ecdi m\u1ee9c ch\u00eanh l\u1ec7ch ti\u1ec1m n\u0103ng \u0111i qua c\u00f9ng m\u1ed9t quy tr\u00ecnh ki\u1ec3m tra. \u0110\u00e2y l\u00e0 tr\u00ecnh t\u1ef1 m\u00e0 bot CEX-DEX ph\u1ea3i th\u1ef1c hi\u1ec7n trong v\u00e0i mili gi\u00e2y; l\u00e0m th\u1ee7 c\u00f4ng tr\u01b0\u1edbc s\u1ebd cho b\u1ea1n th\u1ea5y nh\u1eefng \u0111\u1ea7u v\u00e0o n\u00e0o l\u00e0 quan tr\u1ecdng.<\/p>\n<div class=\"cdx-steps\">\n<div class=\"cdx-step\"><span class=\"cdx-step-n\">1<\/span><\/p>\n<div><strong>\u0110\u1ecdc \u0111\u00fang c\u1ea3 hai m\u1ee9c gi\u00e1.<\/strong> D\u00f9ng gi\u00e1 mua (bid) tr\u00ean s\u00e0n t\u1eadp trung n\u1ebfu b\u1ea1n s\u1ebd b\u00e1n \u1edf \u0111\u00f3 v\u00e0 gi\u00e1 b\u00e1n (ask) n\u1ebfu b\u1ea1n s\u1ebd mua. \u0110\u1ecdc tr\u1ea1ng th\u00e1i pool t\u1eeb block m\u1edbi nh\u1ea5t, kh\u00f4ng ph\u1ea3i t\u1eeb API \u0111\u01b0\u1ee3c l\u01b0u \u0111\u1ec7m.<\/div>\n<\/div>\n<div class=\"cdx-step\"><span class=\"cdx-step-n\">2<\/span><\/p>\n<div><strong>Tr\u1eeb \u0111i v\u00f9ng kh\u00f4ng giao d\u1ecbch.<\/strong> N\u1ebfu ch\u00eanh l\u1ec7ch nh\u1ecf h\u01a1n t\u1ed5ng ph\u00ed pool v\u00e0 ph\u00ed s\u00e0n, h\u00e3y d\u1eebng l\u1ea1i: quy m\u00f4 t\u1ed1i \u01b0u b\u1eb1ng 0.<\/div>\n<\/div>\n<div class=\"cdx-step\"><span class=\"cdx-step-n\">3<\/span><\/p>\n<div><strong>M\u00f4 ph\u1ecfng l\u1ec7nh swap v\u1edbi quy m\u00f4 t\u1ed1i \u01b0u.<\/strong> D\u00f9ng to\u00e1n h\u1ecdc ri\u00eang c\u1ee7a pool (t\u00edch kh\u00f4ng \u0111\u1ed5i, tick thanh kho\u1ea3n t\u1eadp trung ho\u1eb7c \u0111\u01b0\u1eddng cong stable-swap) v\u00e0 t\u00ecm \u0111i\u1ec3m m\u00e0 gi\u00e1 bi\u00ean g\u1eb7p gi\u00e1 t\u1eadp trung.<\/div>\n<\/div>\n<div class=\"cdx-step\"><span class=\"cdx-step-n\">4<\/span><\/p>\n<div><strong>Ki\u1ec3m tra \u0111\u1ed9 s\u00e2u cho l\u1ec7nh ph\u00f2ng h\u1ed9.<\/strong> \u0110\u1ea3m b\u1ea3o s\u1ed5 l\u1ec7nh c\u1ee7a s\u00e0n t\u1eadp trung c\u00f3 th\u1ec3 h\u1ea5p th\u1ee5 l\u1ec7nh ph\u00f2ng h\u1ed9 v\u1edbi m\u1ee9c tr\u01b0\u1ee3t gi\u00e1 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c trong gi\u1edbi h\u1ea1n th\u1eddi gian c\u1ee7a b\u1ea1n.<\/div>\n<\/div>\n<div class=\"cdx-step\"><span class=\"cdx-step-n\">5<\/span><\/p>\n<div><strong>Tr\u1eeb m\u1ecdi chi ph\u00ed.<\/strong> Gas, ph\u00ed s\u00e0n, tr\u01b0\u1ee3t gi\u00e1 ph\u00f2ng h\u1ed9, kho\u1ea3n tr\u1ea3 d\u1ef1 ki\u1ebfn cho v\u1ecb tr\u00ed trong block v\u00e0 chi ph\u00ed t\u00e1i c\u00e2n b\u1eb1ng \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed5.<\/div>\n<\/div>\n<div class=\"cdx-step\"><span class=\"cdx-step-n\">6<\/span><\/p>\n<div><strong>Thi\u1ebft l\u1eadp b\u1ea3o v\u1ec7.<\/strong> \u0110\u1ea7u ra t\u1ed1i thi\u1ec3u cho l\u1ec7nh swap, g\u1eedi ri\u00eang t\u01b0, th\u1eddi h\u1ea1n, v\u00e0 quy t\u1eafc \u0111\u00f3ng ch\u00e2n l\u1ec7nh b\u1ecb th\u1ea5t b\u1ea1i.<\/div>\n<\/div>\n<div class=\"cdx-step\"><span class=\"cdx-step-n\">7<\/span><\/p>\n<div><strong>Ghi nh\u1eadt k\u00fd v\u00e0 so s\u00e1nh.<\/strong> Ghi l\u1ea1i k\u1ebft qu\u1ea3 d\u1ef1 ki\u1ebfn v\u00e0 k\u1ebft qu\u1ea3 th\u1ef1c t\u1ebf cho m\u1ecdi l\u1ea7n th\u1eed, k\u1ec3 c\u1ea3 c\u00e1c cu\u1ed9c \u0111ua b\u1ecb thua v\u00e0 giao d\u1ecbch b\u1ecb ho\u00e0n t\u00e1c. T\u1ef7 l\u1ec7 th\u1eafng tr\u00ean c\u00e1c giao d\u1ecbch \u0111\u00e3 g\u1eedi l\u00e0 con s\u1ed1 cho b\u1ea1n bi\u1ebft li\u1ec7u b\u1ea1n c\u00f3 \u0111\u1ee7 s\u1ee9c c\u1ea1nh tranh hay kh\u00f4ng.<\/div>\n<\/div>\n<\/div>\n<h2 id=\"cdx-risks\">R\u1ee7i ro v\u00e0 h\u1ea1n ch\u1ebf<\/h2>\n<ul class=\"cdx-checks\">\n<li><strong>R\u1ee7i ro c\u1ea1nh tranh:<\/strong> tr\u00ean c\u00e1c c\u1eb7p ch\u00ednh, ch\u00eanh l\u1ec7ch th\u01b0\u1eddng b\u1ecb c\u00e1c searcher nhanh h\u01a1n ho\u1eb7c c\u00f3 k\u1ebft n\u1ed1i t\u1ed1t h\u01a1n chi\u1ebfm l\u1ea5y ngay trong c\u00f9ng block. Thua cu\u1ed9c \u0111ua v\u1eabn c\u00f3 th\u1ec3 t\u1ed1n gas.<\/li>\n<li><strong>R\u1ee7i ro ch\u00e2n l\u1ec7nh:<\/strong> m\u1ed9t ch\u00e2n kh\u1edbp c\u00f2n ch\u00e2n kia kh\u00f4ng, khi\u1ebfn b\u1ea1n gi\u1eef v\u1ecb th\u1ebf m\u1edf trong m\u1ed9t \u0111\u1ee3t bi\u1ebfn \u0111\u1ed9ng m\u1ea1nh, \u0111\u00fang v\u00e0o l\u00fac ch\u00eanh l\u1ec7ch xu\u1ea5t hi\u1ec7n.<\/li>\n<li><strong>R\u1ee7i ro h\u1ee3p \u0111\u1ed3ng th\u00f4ng minh:<\/strong> pool, router ho\u1eb7c c\u1ea7u n\u1ed1i c\u00f3 th\u1ec3 ch\u1ee9a l\u1ed7i ho\u1eb7c b\u1ecb khai th\u00e1c. Ch\u1ec9 t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c h\u1ee3p \u0111\u1ed3ng \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m to\u00e1n v\u00e0 s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i, \u0111\u1ed3ng th\u1eddi gi\u1edbi h\u1ea1n quy\u1ec1n ph\u00ea duy\u1ec7t.<\/li>\n<li><strong>R\u1ee7i ro token:<\/strong> token \u0111u\u00f4i d\u00e0i c\u00f3 th\u1ec3 c\u00f3 thu\u1ebf chuy\u1ec3n, danh s\u00e1ch \u0111en, h\u1ee3p \u0111\u1ed3ng b\u1ecb t\u1ea1m d\u1eebng ho\u1eb7c pool gi\u1ea3 m\u1ea1o c\u00f9ng t\u00ean. M\u1ed9t ch\u00eanh l\u1ec7ch l\u1edbn tr\u00ean m\u1ed9t token \u00edt ng\u01b0\u1eddi bi\u1ebft th\u01b0\u1eddng l\u00e0 c\u00e1i b\u1eaby ch\u1ee9 kh\u00f4ng ph\u1ea3i c\u01a1 h\u1ed9i.<\/li>\n<li><strong>R\u1ee7i ro s\u00e0n giao d\u1ecbch:<\/strong> n\u1ea1p v\u00e0 r\u00fat c\u00f3 th\u1ec3 b\u1ecb t\u1ea1m ng\u1eebng tr\u00ean m\u1ed9t m\u1ea1ng l\u01b0\u1edbi, API key c\u00f3 th\u1ec3 b\u1ecb gi\u1edbi h\u1ea1n t\u1ea7n su\u1ea5t, t\u00e0i kho\u1ea3n c\u00f3 th\u1ec3 b\u1ecb xem x\u00e9t. Gi\u1eef m\u1ee9c r\u1ee7i ro tr\u00ean m\u1ed7i s\u00e0n trong gi\u1edbi h\u1ea1n m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 ch\u1ea5p nh\u1eadn n\u1ebfu b\u1ecb \u0111\u00f3ng b\u0103ng.<\/li>\n<li><strong>R\u1ee7i ro v\u1eadn h\u00e0nh:<\/strong> qu\u1ea3n l\u00fd kh\u00f3a ri\u00eang t\u01b0, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a node v\u00e0 gi\u00e1m s\u00e1t l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a chi\u1ebfn l\u01b0\u1ee3c. Ch\u1ec9 m\u1ed9t kh\u00f3a b\u1ecb l\u1ed9 l\u00e0 chi\u1ebfn l\u01b0\u1ee3c ch\u1ea5m d\u1ee9t.<\/li>\n<li><strong>Ph\u00e1p l\u00fd v\u00e0 thu\u1ebf:<\/strong> quy \u0111\u1ecbnh v\u1ec1 ho\u1ea1t \u0111\u1ed9ng DeFi v\u00e0 v\u1ec1 vi\u1ec7c khai b\u00e1o nhi\u1ec1u giao d\u1ecbch nh\u1ecf kh\u00e1c nhau t\u00f9y qu\u1ed1c gia. H\u00e3y ki\u1ec3m tra t\u00ecnh h\u00ecnh c\u1ee7a b\u1ea1n tr\u01b0\u1edbc khi m\u1edf r\u1ed9ng quy m\u00f4.<\/li>\n<\/ul>\n<h2 id=\"cdx-cexcex\">CEX-DEX hay CEX-CEX: l\u1ef1a ch\u1ecdn n\u00e0o ph\u00f9 h\u1ee3p v\u1edbi b\u1ea1n<\/h2>\n<p>Arbitrage CEX-DEX l\u00e0 m\u1ed9t ph\u1ea7n ch\u00ednh \u0111\u00e1ng v\u00e0 quan tr\u1ecdng trong c\u00e1ch c\u00e1c th\u1ecb tr\u01b0\u1eddng crypto gi\u1eef gi\u00e1 \u0111\u1ed3ng nh\u1ea5t. \u0110\u00e2y c\u0169ng l\u00e0 m\u1ed9t trong nh\u1eefng ho\u1ea1t \u0111\u1ed9ng \u0111\u00f4ng \u0111\u00fac nh\u1ea5t trong l\u0129nh v\u1ef1c n\u00e0y, b\u1ecb chi ph\u1ed1i tr\u00ean c\u00e1c c\u1eb7p ch\u00ednh b\u1edfi c\u00e1c \u0111\u1ed9i c\u00f3 quan h\u1ec7 v\u1edbi builder v\u00e0 v\u1ed1n t\u1ed3n kho l\u1edbn. N\u1ebfu b\u1ea1n \u0111ang ch\u1ecdn n\u01a1i b\u1eaft \u0111\u1ea7u, h\u00e3y so s\u00e1nh n\u00f3 m\u1ed9t c\u00e1ch trung th\u1ef1c v\u1edbi arbitrage gi\u1eefa c\u00e1c s\u00e0n t\u1eadp trung:<\/p>\n<div class=\"cdx-table-wrap\">\n<table class=\"cdx-table\">\n<thead>\n<tr>\n<th>Ti\u00eau ch\u00ed<\/th>\n<th>CEX-DEX<\/th>\n<th>CEX-CEX<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>N\u01a1i gi\u00e1 ch\u00eanh l\u1ec7ch<\/td>\n<td>Pool ch\u1eadm h\u01a1n th\u1ecb tr\u01b0\u1eddng s\u1ed5 l\u1ec7nh gi\u1eefa c\u00e1c block<\/td>\n<td>C\u00e1c s\u00e0n v\u00e0 lu\u1ed3ng d\u1eef li\u1ec7u c\u1ee7a ch\u00fang ph\u1ea3n \u1ee9ng v\u1edbi bi\u1ebfn \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 kh\u00e1c nhau<\/td>\n<\/tr>\n<tr>\n<td>Chi ph\u00ed ch\u00ednh<\/td>\n<td>Ph\u00ed pool, t\u00e1c \u0111\u1ed9ng gi\u00e1, gas, kho\u1ea3n tr\u1ea3 cho v\u1ecb tr\u00ed trong block<\/td>\n<td>Ph\u00ed giao d\u1ecbch, spread, tr\u01b0\u1ee3t gi\u00e1, chuy\u1ec3n ti\u1ec1n gi\u1eefa c\u00e1c s\u00e0n<\/td>\n<\/tr>\n<tr>\n<td>C\u00f3 t\u00ednh nguy\u00ean t\u1eed?<\/td>\n<td>Kh\u00f4ng: ch\u00e2n blockchain c\u1ed9ng v\u1edbi ch\u00e2n s\u00e0n giao d\u1ecbch<\/td>\n<td>Kh\u00f4ng: hai l\u1ec7nh tr\u00ean s\u00e0n, nh\u01b0ng c\u1ea3 hai \u0111\u1ec1u tr\u00ean c\u00f4ng c\u1ee5 kh\u1edbp l\u1ec7nh nhanh<\/td>\n<\/tr>\n<tr>\n<td>H\u1ea1 t\u1ea7ng<\/td>\n<td>Node, relay ri\u00eang t\u01b0, b\u1ea3o m\u1eadt v\u00ed, API s\u00e0n<\/td>\n<td>API s\u00e0n, lu\u1ed3ng d\u1eef li\u1ec7u nhanh, m\u00e1y ch\u1ee7 g\u1ea7n c\u00e1c s\u00e0n<\/td>\n<\/tr>\n<tr>\n<td>Ai c\u1ea1nh tranh<\/td>\n<td>C\u00e1c MEV searcher c\u00f3 li\u00ean k\u1ebft v\u1edbi builder<\/td>\n<td>C\u00e1c c\u00f4ng ty arbitrage v\u00e0 t\u1ea1o l\u1eadp th\u1ecb tr\u01b0\u1eddng, bot c\u1ee7a nh\u00e0 \u0111\u1ea7u t\u01b0 c\u00e1 nh\u00e2n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>C\u00e1c c\u00f4ng c\u1ee5 crypto c\u1ee7a BJF Trading Group ho\u1ea1t \u0111\u1ed9ng \u1edf ph\u00eda s\u00e0n t\u1eadp trung: <a href=\"https:\/\/bjftradinggroup.com\/crypto-arbitrage-scanner\/\">tr\u00ecnh qu\u00e9t arbitrage crypto mi\u1ec5n ph\u00ed<\/a> hi\u1ec3n th\u1ecb ch\u00eanh l\u1ec7ch gi\u00e1 gi\u1eefa c\u00e1c s\u00e0n t\u1eadp trung theo th\u1eddi gian th\u1ef1c, v\u00e0 VIP Crypto Arbitrage th\u1ef1c hi\u1ec7n arbitrage m\u1ed9t ch\u00e2n v\u00e0 arbitrage ph\u00f2ng h\u1ed9 tr\u00ean h\u01a1n 50 s\u00e0n giao ngay v\u00e0 h\u1ee3p \u0111\u1ed3ng t\u01b0\u01a1ng lai t\u1eadp trung th\u00f4ng qua API g\u1ed1c c\u1ee7a c\u00e1c s\u00e0n. Ch\u00fang kh\u00f4ng giao d\u1ecbch v\u1edbi c\u00e1c pool DEX. \u0110\u1ec3 c\u00f3 b\u1ee9c tranh t\u1ed5ng th\u1ec3 v\u1ec1 c\u00e1c chi\u1ebfn l\u01b0\u1ee3c gi\u1eefa c\u00e1c s\u00e0n, xem <a href=\"https:\/\/bjftradinggroup.com\/crypto-arbitrage\/\">t\u1ed5ng quan v\u1ec1 arbitrage crypto<\/a> c\u1ee7a ch\u00fang t\u00f4i; v\u1edbi c\u00e1c l\u1ef1a ch\u1ecdn trung l\u1eadp delta kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c th\u1eafng cu\u1ed9c \u0111ua block, c\u00e1c h\u01b0\u1edbng d\u1eabn <a href=\"https:\/\/bjftradinggroup.com\/funding-rate-arbitrage\/\">arbitrage funding rate<\/a> v\u00e0 <a href=\"https:\/\/bjftradinggroup.com\/cash-and-carry-arbitrage-crypto\/\">giao d\u1ecbch basis giao ngay &#8211; t\u01b0\u01a1ng lai<\/a> s\u1ebd \u0111i qua c\u00e1c con s\u1ed1 c\u1ee5 th\u1ec3.<\/p>\n<div class=\"cdx-cta\">\n<h3>Tr\u01b0\u1edbc ti\u00ean h\u00e3y xem ch\u00eanh l\u1ec7ch gi\u00e1 th\u1ef1c t\u1ebf gi\u1eefa c\u00e1c s\u00e0n<\/h3>\n<p>Tr\u01b0\u1edbc khi x\u00e2y d\u1ef1ng h\u1ea1 t\u1ea7ng cho b\u1ea5t k\u1ef3 h\u00ecnh th\u1ee9c arbitrage n\u00e0o, h\u00e3y quan s\u00e1t ch\u00eanh l\u1ec7ch xu\u1ea5t hi\u1ec7n th\u01b0\u1eddng xuy\u00ean \u0111\u1ebfn m\u1ee9c n\u00e0o, l\u1edbn bao nhi\u00eau sau ph\u00ed v\u00e0 k\u00e9o d\u00e0i bao l\u00e2u. Tr\u00ecnh qu\u00e9t mi\u1ec5n ph\u00ed hi\u1ec3n th\u1ecb \u0111i\u1ec1u \u0111\u00f3 tr\u1ef1c ti\u1ebfp cho c\u00e1c s\u00e0n t\u1eadp trung.<\/p>\n<p><a class=\"cdx-btn\" href=\"https:\/\/bjftradinggroup.com\/product\/crypto-arbitrage-scanner-free\/\">Nh\u1eadn Crypto Arbitrage Scanner mi\u1ec5n ph\u00ed<\/a><a class=\"cdx-btn cdx-btn-alt\" href=\"https:\/\/bjftradinggroup.com\/product\/vip-crypto-arbitrage-software\/\">Ph\u1ea7n m\u1ec1m VIP Crypto Arbitrage<\/a>\n<\/div>\n<div class=\"bjf-ff-wrap\"><div class=\"bjf-ff\" id=\"bjfff2950\" style=\"max-width:640px;margin:28px auto;padding:24px 26px;border:1px solid #d9e1ec;border-radius:12px;background:#f6f8fb\">\n<p style=\"margin:0 0 6px;font-size:20px;font-weight:700;color:#0f1b2d\">M\u00e1y qu\u00e9t ch\u00eanh l\u1ec7ch gi\u00e1 mi\u1ec5n ph\u00ed + kh\u00f3a h\u1ecdc email ng\u1eafn<\/p>\n<p style=\"margin:0 0 16px;font-size:15px;line-height:1.55;color:#44505f\">Nh\u1eadn li\u00ean k\u1ebft m\u00e1y qu\u00e9t mi\u1ec5n ph\u00ed v\u00e0 v\u00e0i email ng\u1eafn, th\u1ef1c t\u1ebf t\u1eeb Boris: ch\u00eanh l\u1ec7ch gi\u00e1 th\u1ef1c s\u1ef1 c\u00f3 \u00fd ngh\u0129a g\u00ec sau chi ph\u00ed, c\u00e1ch ki\u1ec3m th\u1eed chi\u1ebfn l\u01b0\u1ee3c tr\u01b0\u1edbc khi m\u1ea1o hi\u1ec3m ti\u1ec1n th\u1eadt v\u00e0 c\u00f4ng c\u1ee5 n\u00e0o ph\u00f9 h\u1ee3p v\u1edbi th\u1ecb tr\u01b0\u1eddng c\u1ee7a b\u1ea1n. Kh\u00f4ng th\u1ed5i ph\u1ed3ng. Email \u0111\u01b0\u1ee3c g\u1eedi b\u1eb1ng ti\u1ebfng Anh.<\/p>\n<form method=\"post\" novalidate>\n<input type=\"hidden\" name=\"market\" value=\"crypto\"><input type=\"hidden\" name=\"source\" value=\"blog\"><input type=\"hidden\" name=\"ts\" value=\"1793652222\"><input type=\"hidden\" name=\"ref\" value=\"cex-dex-arbitrage\"><input type=\"hidden\" name=\"lang\" value=\"vi\"><div style=\"position:absolute;left:-9999px\" aria-hidden=\"true\"><label>Website<input type=\"text\" name=\"website\" tabindex=\"-1\" autocomplete=\"off\"><\/label><\/div>\n<div style=\"display:flex;flex-wrap:wrap;gap:10px\">\n<input type=\"text\" name=\"first_name\" placeholder=\"T\u00ean\" aria-label=\"T\u00ean\" autocomplete=\"given-name\" style=\"flex:1 1 160px;min-width:0;padding:11px 12px;border:1px solid #c9d3df;border-radius:8px;font-size:15px\">\n<input type=\"email\" name=\"email\" required placeholder=\"Email\" aria-label=\"Email\" autocomplete=\"email\" style=\"flex:2 1 220px;min-width:0;padding:11px 12px;border:1px solid #c9d3df;border-radius:8px;font-size:15px\">\n<button type=\"submit\" style=\"flex:1 1 160px;padding:11px 16px;border:0;border-radius:8px;background:#c9962a;color:#0f1b2d;font-weight:700;font-size:15px;cursor:pointer\">G\u1eedi cho t\u00f4i<\/button>\n<\/div>\n<p style=\"margin:10px 0 0;font-size:12px;line-height:1.5;color:#6b7785\">Khi g\u1eedi, b\u1ea1n \u0111\u1ed3ng \u00fd nh\u1eadn email t\u1eeb BJF Trading Group v\u1ec1 c\u00f4ng c\u1ee5 arbitrage v\u00e0 ph\u1ea7n m\u1ec1m giao d\u1ecbch. B\u1ea1n c\u00f3 th\u1ec3 h\u1ee7y \u0111\u0103ng k\u00fd b\u1ea5t c\u1ee9 l\u00fac n\u00e0o. Xem <a href=\"https:\/\/bjftradinggroup.com\/vi\/privacy-policy\/\">Ch\u00ednh s\u00e1ch quy\u1ec1n ri\u00eang t\u01b0<\/a> c\u1ee7a ch\u00fang t\u00f4i.<\/p>\n<p class=\"bjf-ff-msg\" role=\"status\" style=\"margin:10px 0 0;font-size:15px;font-weight:600\"><\/p>\n<\/form><\/div>\n<script>(function(){var M={\"invalid\":\"Vui l\\u00f2ng nh\\u1eadp email h\\u1ee3p l\\u1ec7.\",\"sending\":\"\\u0110ang g\\u1eedi\\u2026\",\"done\":\"Xong! H\\u00e3y ki\\u1ec3m tra h\\u1ed9p th\\u01b0 c\\u1ee7a b\\u1ea1n sau v\\u00e0i ph\\u00fat.\",\"err\":\"\\u0110\\u00e3 x\\u1ea3y ra l\\u1ed7i, vui l\\u00f2ng th\\u1eed l\\u1ea1i.\",\"net\":\"L\\u1ed7i m\\u1ea1ng, vui l\\u00f2ng th\\u1eed l\\u1ea1i.\",\"srv\":false};var b=document.getElementById('bjfff2950');if(!b)return;var f=b.querySelector('form'),m=b.querySelector('.bjf-ff-msg');f.addEventListener('submit',function(e){e.preventDefault();var d=new FormData(f);if(!\/^[^\\s@]+@[^\\s@]+\\.[^\\s@]+$\/.test(d.get('email')||'')){m.style.color='#b42318';m.textContent=M.invalid;return;}var btn=f.querySelector('button');btn.disabled=true;m.style.color='#44505f';m.textContent=M.sending;fetch('\/wp-json\/bjf\/v1\/subscribe',{method:'POST',body:d}).then(function(r){return r.json()}).then(function(j){if(j&&j.ok){m.style.color='#1a7f4b';m.textContent=M.done;f.querySelectorAll('input,button').forEach(function(x){x.disabled=true});if(window.gtag)gtag('event','generate_lead',{form_source:d.get('source')});if(window.fbq)fbq('track','Lead',{content_name:d.get('source')});}else{btn.disabled=false;m.style.color='#b42318';m.textContent=(M.srv&&j&&j.msg)||M.err;}}).catch(function(){btn.disabled=false;m.style.color='#b42318';m.textContent=M.net;});});})();<\/script>\n<\/div>\n<h2 id=\"cdx-faq\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<div class=\"cdx-faq\">\n<h3>Arbitrage CEX-DEX l\u00e0 g\u00ec?<\/h3>\n<p>\u0110\u00f3 l\u00e0 vi\u1ec7c mua m\u1ed9t token tr\u00ean pool c\u1ee7a s\u00e0n giao d\u1ecbch phi t\u1eadp trung v\u00e0 b\u00e1n n\u00f3 tr\u00ean s\u00e0n giao d\u1ecbch t\u1eadp trung, ho\u1eb7c ng\u01b0\u1ee3c l\u1ea1i, khi gi\u00e1 ch\u00eanh nhau nhi\u1ec1u h\u01a1n t\u1ed5ng chi ph\u00ed. Pool ch\u1ec9 \u0111\u1ecbnh gi\u00e1 l\u1ea1i khi c\u00f3 ng\u01b0\u1eddi swap, n\u00ean ch\u00fang ch\u1eadm h\u01a1n th\u1ecb tr\u01b0\u1eddng t\u1eadp trung, v\u00e0 c\u00e1c nh\u00e0 kinh doanh ch\u00eanh l\u1ec7ch gi\u00e1 \u0111\u01b0a ch\u00fang tr\u1edf l\u1ea1i \u0111\u00fang m\u1ee9c.<\/p>\n<h3>Arbitrage CEX-DEX c\u00f3 c\u00f2n sinh l\u1eddi kh\u00f4ng?<\/h3>\n<p>V\u1edbi m\u1ed9t s\u1ed1 \u00edt searcher chuy\u00ean bi\u1ec7t th\u00ec c\u00f3, nh\u01b0ng tr\u00ean c\u00e1c c\u1eb7p ch\u00ednh, ph\u1ea7n l\u1edbn gi\u00e1 tr\u1ecb g\u1ed9p b\u1ecb ti\u00eau t\u1ed1n v\u00e0o ph\u00ed pool, t\u00e1c \u0111\u1ed9ng gi\u00e1, gas v\u00e0 c\u00e1c kho\u1ea3n tr\u1ea3 cho block builder. Trader \u0111\u1ed9c l\u1eadp ch\u1ee7 y\u1ebfu t\u00ecm th\u1ea5y l\u1ee3i th\u1ebf c\u00f2n l\u1ea1i tr\u00ean c\u00e1c pool v\u00e0 chu\u1ed7i \u00edt \u0111\u01b0\u1ee3c theo d\u00f5i, n\u01a1i r\u1ee7i ro token v\u00e0 h\u1ee3p \u0111\u1ed3ng cao h\u01a1n.<\/p>\n<h3>Ch\u00eanh l\u1ec7ch gi\u00e1 ph\u1ea3i l\u1edbn \u0111\u1ebfn m\u1ee9c n\u00e0o \u0111\u1ec3 arbitrage m\u1ed9t pool DEX?<\/h3>\n<p>\u00cdt nh\u1ea5t b\u1eb1ng t\u1ed5ng ph\u00ed pool v\u00e0 ph\u00ed s\u00e0n t\u1eadp trung, v\u00e0 l\u1edbn h\u01a1n n\u1eefa \u0111\u1ec3 trang tr\u1ea3i gas, tr\u01b0\u1ee3t gi\u00e1 ph\u00f2ng h\u1ed9 v\u00e0 chi ph\u00ed v\u1ecb tr\u00ed trong block. Tr\u00ean pool 0.3% v\u1edbi ph\u00ed s\u00e0n 0.05%, c\u00e1c ch\u00eanh l\u1ec7ch d\u01b0\u1edbi kho\u1ea3ng 0.4% th\u01b0\u1eddng ho\u00e0n to\u00e0n kh\u00f4ng th\u1ec3 giao d\u1ecbch.<\/p>\n<h3>V\u00ec sao ch\u00eanh l\u1ec7ch 1% kh\u00f4ng ph\u1ea3i l\u00e0 l\u1ee3i nhu\u1eadn 1%?<\/h3>\n<p>V\u00ec ch\u00ednh l\u1ec7nh swap c\u1ee7a b\u1ea1n \u0111\u1ea9y gi\u00e1 pool d\u1ecdc theo \u0111\u01b0\u1eddng cong, v\u00e0 ph\u00ed pool \u0111\u01b0\u1ee3c t\u00ednh tr\u00ean s\u1ed1 ti\u1ec1n \u0111\u01b0a v\u00e0o. Trong pool v\u00ed d\u1ee5 c\u1ee7a ch\u00fang t\u00f4i, ch\u00eanh l\u1ec7ch 1% v\u1edbi giao d\u1ecbch t\u1ed1i \u01b0u kho\u1ea3ng 24,400 USDC mang l\u1ea1i kho\u1ea3ng 85 USDC g\u1ed9p, t\u1ee9c kho\u1ea3ng 0.35%, tr\u01b0\u1edbc m\u1ecdi chi ph\u00ed b\u00ean ngo\u00e0i.<\/p>\n<h3>Arbitrage CEX-DEX c\u00f3 th\u1ec3 d\u00f9ng flash loan kh\u00f4ng?<\/h3>\n<p>Kh\u00f4ng th\u1ec3 d\u00f9ng cho to\u00e0n b\u1ed9 giao d\u1ecbch. Flash loan ph\u1ea3i \u0111\u01b0\u1ee3c ho\u00e0n tr\u1ea3 trong c\u00f9ng m\u1ed9t giao d\u1ecbch, c\u00f2n ch\u00e2n s\u00e0n t\u1eadp trung di\u1ec5n ra b\u00ean ngo\u00e0i blockchain. Flash loan ph\u00f9 h\u1ee3p v\u1edbi arbitrage thu\u1ea7n on-chain gi\u1eefa c\u00e1c pool; arbitrage CEX-DEX c\u1ea7n v\u1ed1n t\u1ed3n kho c\u1ee7a ch\u00ednh b\u1ea1n \u1edf c\u1ea3 hai ph\u00eda.<\/p>\n<h3>Trong arbitrage CEX-DEX, ch\u00e2n n\u00e0o th\u1ef1c hi\u1ec7n tr\u01b0\u1edbc?<\/h3>\n<p>C\u1ea3 hai c\u00e1ch \u0111\u1ec1u \u0111\u01b0\u1ee3c. Swap tr\u01b0\u1edbc ngh\u0129a l\u00e0 b\u1ea1n ch\u1ec9 ph\u00f2ng h\u1ed9 ph\u1ea7n \u0111\u00e3 kh\u1edbp nh\u01b0ng ch\u1ecbu r\u1ee7i ro th\u1ecb tr\u01b0\u1eddng cho \u0111\u1ebfn khi block \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn; ph\u00f2ng h\u1ed9 tr\u01b0\u1edbc gi\u00fap ch\u1ed1t gi\u00e1 nh\u01b0ng \u0111\u1ec3 l\u1ea1i m\u1ed9t v\u1ecb th\u1ebf n\u1ebfu l\u1ec7nh swap th\u1ea5t b\u1ea1i. H\u1ea7u h\u1ebft h\u1ec7 th\u1ed1ng t\u1ef1 \u0111\u1ed9ng g\u1eedi c\u1ea3 hai th\u1eadt nhanh v\u00e0 \u0111\u00f3ng m\u1ecdi ch\u00e2n l\u1ec7nh b\u1ecb b\u1ecf l\u1ea1i theo quy t\u1eafc.<\/p>\n<h3>Ph\u1ea7n m\u1ec1m BJF c\u00f3 giao d\u1ecbch tr\u00ean s\u00e0n phi t\u1eadp trung kh\u00f4ng?<\/h3>\n<p>Kh\u00f4ng. C\u00e1c c\u00f4ng c\u1ee5 arbitrage crypto c\u1ee7a BJF l\u00e0m vi\u1ec7c v\u1edbi c\u00e1c s\u00e0n t\u1eadp trung th\u00f4ng qua API c\u1ee7a ch\u00fang. Tr\u00ecnh qu\u00e9t mi\u1ec5n ph\u00ed v\u00e0 VIP Crypto Arbitrage bao qu\u00e1t ch\u00eanh l\u1ec7ch gi\u00e1 gi\u1eefa c\u00e1c s\u00e0n t\u1eadp trung.<\/p>\n<\/div>\n<p class=\"cdx-note\">B\u00e0i vi\u1ebft n\u00e0y mang t\u00ednh gi\u00e1o d\u1ee5c v\u00e0 kh\u00f4ng ph\u1ea3i l\u00e0 l\u1eddi khuy\u00ean t\u00e0i ch\u00ednh. C\u00e1c v\u00ed d\u1ee5 s\u1ed1 s\u1eed d\u1ee5ng m\u1ed9t pool m\u00f4 h\u00ecnh v\u00e0 c\u00e1c gi\u1ea3 \u0111\u1ecbnh \u0111\u00e3 n\u00eau; bi\u1ec3u \u0111\u1ed3 v\u00e0 s\u1ed1 li\u1ec7u \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u l\u00e0 minh h\u1ecda kh\u00f4ng ph\u1ea3i l\u00e0 k\u1ebft qu\u1ea3 \u0111o l\u01b0\u1eddng c\u1ee7a b\u1ea5t k\u1ef3 s\u00e0n, pool hay trader c\u1ee5 th\u1ec3 n\u00e0o. Ph\u00ed, th\u1eddi gian block v\u00e0 quy t\u1eafc s\u1eafp x\u1ebfp thay \u0111\u1ed5i theo th\u1eddi gian.<\/p>\n<p><script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"Article\",\n      \"headline\": \"Gi\u1ea3i th\u00edch arbitrage CEX-DEX: t\u00e1c \u0111\u1ed9ng gi\u00e1 AMM, gas, MEV v\u00e0 chi ph\u00ed th\u1ef1c\",\n      \"description\": \"C\u00e1ch arbitrage CEX-DEX ho\u1ea1t \u0111\u1ed9ng, v\u00ec sao ch\u00eanh l\u1ec7ch 1% kh\u00f4ng ph\u1ea3i l\u1ee3i nhu\u1eadn 1%, t\u00e1c \u0111\u1ed9ng gi\u00e1 AMM v\u00e0 quy m\u00f4 giao d\u1ecbch t\u1ed1i \u01b0u, gas, MEV v\u00e0 tip cho builder, c\u00f9ng m\u1ee9c ch\u00eanh l\u1ec7ch h\u00f2a v\u1ed1n.\",\n      \"image\": \"https:\/\/bjftradinggroup.com\/wp-content\/uploads\/2026\/11\/article-cover-cex-dex-arbitrage-1200x630-1.webp\",\n      \"author\": {\n        \"@type\": \"Organization\",\n        \"name\": \"BJF Trading Group\",\n        \"url\": \"https:\/\/bjftradinggroup.com\/\"\n      },\n      \"publisher\": {\n        \"@type\": \"Organization\",\n        \"name\": \"BJF Trading Group\",\n        \"url\": \"https:\/\/bjftradinggroup.com\/\"\n      },\n      \"datePublished\": \"2026-11-01\",\n      \"dateModified\": \"2026-11-01\",\n      \"mainEntityOfPage\": \"https:\/\/bjftradinggroup.com\/cex-dex-arbitrage\/\"\n    },\n    {\n      \"@type\": \"HowTo\",\n      \"name\": \"C\u00e1ch \u0111\u00e1nh gi\u00e1 m\u1ed9t c\u01a1 h\u1ed9i arbitrage CEX-DEX\",\n      \"step\": [\n        {\n          \"@type\": \"HowToStep\",\n          \"position\": 1,\n          \"name\": \"\u0110\u1ecdc \u0111\u00fang c\u1ea3 hai m\u1ee9c gi\u00e1\",\n          \"text\": \"\u0110\u1ecdc \u0111\u00fang c\u1ea3 hai m\u1ee9c gi\u00e1. D\u00f9ng gi\u00e1 mua (bid) tr\u00ean s\u00e0n t\u1eadp trung n\u1ebfu b\u1ea1n s\u1ebd b\u00e1n \u1edf \u0111\u00f3 v\u00e0 gi\u00e1 b\u00e1n (ask) n\u1ebfu b\u1ea1n s\u1ebd mua. \u0110\u1ecdc tr\u1ea1ng th\u00e1i pool t\u1eeb block m\u1edbi nh\u1ea5t, kh\u00f4ng ph\u1ea3i t\u1eeb API \u0111\u01b0\u1ee3c l\u01b0u \u0111\u1ec7m.\"\n        },\n        {\n          \"@type\": \"HowToStep\",\n          \"position\": 2,\n          \"name\": \"Tr\u1eeb \u0111i v\u00f9ng kh\u00f4ng giao d\u1ecbch\",\n          \"text\": \"Tr\u1eeb \u0111i v\u00f9ng kh\u00f4ng giao d\u1ecbch. N\u1ebfu ch\u00eanh l\u1ec7ch nh\u1ecf h\u01a1n t\u1ed5ng ph\u00ed pool v\u00e0 ph\u00ed s\u00e0n, h\u00e3y d\u1eebng l\u1ea1i: quy m\u00f4 t\u1ed1i \u01b0u b\u1eb1ng 0.\"\n        },\n        {\n          \"@type\": \"HowToStep\",\n          \"position\": 3,\n          \"name\": \"M\u00f4 ph\u1ecfng l\u1ec7nh swap v\u1edbi quy m\u00f4 t\u1ed1i \u01b0u\",\n          \"text\": \"M\u00f4 ph\u1ecfng l\u1ec7nh swap v\u1edbi quy m\u00f4 t\u1ed1i \u01b0u. D\u00f9ng to\u00e1n h\u1ecdc ri\u00eang c\u1ee7a pool (t\u00edch kh\u00f4ng \u0111\u1ed5i, tick thanh kho\u1ea3n t\u1eadp trung ho\u1eb7c \u0111\u01b0\u1eddng cong stable-swap) v\u00e0 t\u00ecm \u0111i\u1ec3m m\u00e0 gi\u00e1 bi\u00ean g\u1eb7p gi\u00e1 t\u1eadp trung.\"\n        },\n        {\n          \"@type\": \"HowToStep\",\n          \"position\": 4,\n          \"name\": \"Ki\u1ec3m tra \u0111\u1ed9 s\u00e2u cho l\u1ec7nh ph\u00f2ng h\u1ed9\",\n          \"text\": \"Ki\u1ec3m tra \u0111\u1ed9 s\u00e2u cho l\u1ec7nh ph\u00f2ng h\u1ed9. \u0110\u1ea3m b\u1ea3o s\u1ed5 l\u1ec7nh c\u1ee7a s\u00e0n t\u1eadp trung c\u00f3 th\u1ec3 h\u1ea5p th\u1ee5 l\u1ec7nh ph\u00f2ng h\u1ed9 v\u1edbi m\u1ee9c tr\u01b0\u1ee3t gi\u00e1 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c trong gi\u1edbi h\u1ea1n th\u1eddi gian c\u1ee7a b\u1ea1n.\"\n        },\n        {\n          \"@type\": \"HowToStep\",\n          \"position\": 5,\n          \"name\": \"Tr\u1eeb m\u1ecdi chi ph\u00ed\",\n          \"text\": \"Tr\u1eeb m\u1ecdi chi ph\u00ed. Gas, ph\u00ed s\u00e0n, tr\u01b0\u1ee3t gi\u00e1 ph\u00f2ng h\u1ed9, kho\u1ea3n tr\u1ea3 d\u1ef1 ki\u1ebfn cho v\u1ecb tr\u00ed trong block v\u00e0 chi ph\u00ed t\u00e1i c\u00e2n b\u1eb1ng \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed5.\"\n        },\n        {\n          \"@type\": \"HowToStep\",\n          \"position\": 6,\n          \"name\": \"Thi\u1ebft l\u1eadp b\u1ea3o v\u1ec7\",\n          \"text\": \"Thi\u1ebft l\u1eadp b\u1ea3o v\u1ec7. \u0110\u1ea7u ra t\u1ed1i thi\u1ec3u cho l\u1ec7nh swap, g\u1eedi ri\u00eang t\u01b0, th\u1eddi h\u1ea1n, v\u00e0 quy t\u1eafc \u0111\u00f3ng ch\u00e2n l\u1ec7nh b\u1ecb th\u1ea5t b\u1ea1i.\"\n        },\n        {\n          \"@type\": \"HowToStep\",\n          \"position\": 7,\n          \"name\": \"Ghi nh\u1eadt k\u00fd v\u00e0 so s\u00e1nh\",\n          \"text\": \"Ghi nh\u1eadt k\u00fd v\u00e0 so s\u00e1nh. Ghi l\u1ea1i k\u1ebft qu\u1ea3 d\u1ef1 ki\u1ebfn v\u00e0 k\u1ebft qu\u1ea3 th\u1ef1c t\u1ebf cho m\u1ecdi l\u1ea7n th\u1eed, k\u1ec3 c\u1ea3 c\u00e1c cu\u1ed9c \u0111ua b\u1ecb thua v\u00e0 giao d\u1ecbch b\u1ecb ho\u00e0n t\u00e1c. T\u1ef7 l\u1ec7 th\u1eafng tr\u00ean c\u00e1c giao d\u1ecbch \u0111\u00e3 g\u1eedi l\u00e0 con s\u1ed1 cho b\u1ea1n bi\u1ebft li\u1ec7u b\u1ea1n c\u00f3 \u0111\u1ee7 s\u1ee9c c\u1ea1nh tranh hay kh\u00f4ng.\"\n        }\n      ]\n    },\n    {\n      \"@type\": \"FAQPage\",\n      \"mainEntity\": [\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Arbitrage CEX-DEX l\u00e0 g\u00ec?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"\u0110\u00f3 l\u00e0 vi\u1ec7c mua m\u1ed9t token tr\u00ean pool c\u1ee7a s\u00e0n giao d\u1ecbch phi t\u1eadp trung v\u00e0 b\u00e1n n\u00f3 tr\u00ean s\u00e0n giao d\u1ecbch t\u1eadp trung, ho\u1eb7c ng\u01b0\u1ee3c l\u1ea1i, khi gi\u00e1 ch\u00eanh nhau nhi\u1ec1u h\u01a1n t\u1ed5ng chi ph\u00ed. Pool ch\u1ec9 \u0111\u1ecbnh gi\u00e1 l\u1ea1i khi c\u00f3 ng\u01b0\u1eddi swap, n\u00ean ch\u00fang ch\u1eadm h\u01a1n th\u1ecb tr\u01b0\u1eddng t\u1eadp trung, v\u00e0 c\u00e1c nh\u00e0 kinh doanh ch\u00eanh l\u1ec7ch gi\u00e1 \u0111\u01b0a ch\u00fang tr\u1edf l\u1ea1i \u0111\u00fang m\u1ee9c.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Arbitrage CEX-DEX c\u00f3 c\u00f2n sinh l\u1eddi kh\u00f4ng?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"V\u1edbi m\u1ed9t s\u1ed1 \u00edt searcher chuy\u00ean bi\u1ec7t th\u00ec c\u00f3, nh\u01b0ng tr\u00ean c\u00e1c c\u1eb7p ch\u00ednh, ph\u1ea7n l\u1edbn gi\u00e1 tr\u1ecb g\u1ed9p b\u1ecb ti\u00eau t\u1ed1n v\u00e0o ph\u00ed pool, t\u00e1c \u0111\u1ed9ng gi\u00e1, gas v\u00e0 c\u00e1c kho\u1ea3n tr\u1ea3 cho block builder. Trader \u0111\u1ed9c l\u1eadp ch\u1ee7 y\u1ebfu t\u00ecm th\u1ea5y l\u1ee3i th\u1ebf c\u00f2n l\u1ea1i tr\u00ean c\u00e1c pool v\u00e0 chu\u1ed7i \u00edt \u0111\u01b0\u1ee3c theo d\u00f5i, n\u01a1i r\u1ee7i ro token v\u00e0 h\u1ee3p \u0111\u1ed3ng cao h\u01a1n.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Ch\u00eanh l\u1ec7ch gi\u00e1 ph\u1ea3i l\u1edbn \u0111\u1ebfn m\u1ee9c n\u00e0o \u0111\u1ec3 arbitrage m\u1ed9t pool DEX?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"\u00cdt nh\u1ea5t b\u1eb1ng t\u1ed5ng ph\u00ed pool v\u00e0 ph\u00ed s\u00e0n t\u1eadp trung, v\u00e0 l\u1edbn h\u01a1n n\u1eefa \u0111\u1ec3 trang tr\u1ea3i gas, tr\u01b0\u1ee3t gi\u00e1 ph\u00f2ng h\u1ed9 v\u00e0 chi ph\u00ed v\u1ecb tr\u00ed trong block. Tr\u00ean pool 0.3% v\u1edbi ph\u00ed s\u00e0n 0.05%, c\u00e1c ch\u00eanh l\u1ec7ch d\u01b0\u1edbi kho\u1ea3ng 0.4% th\u01b0\u1eddng ho\u00e0n to\u00e0n kh\u00f4ng th\u1ec3 giao d\u1ecbch.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"V\u00ec sao ch\u00eanh l\u1ec7ch 1% kh\u00f4ng ph\u1ea3i l\u00e0 l\u1ee3i nhu\u1eadn 1%?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"V\u00ec ch\u00ednh l\u1ec7nh swap c\u1ee7a b\u1ea1n \u0111\u1ea9y gi\u00e1 pool d\u1ecdc theo \u0111\u01b0\u1eddng cong, v\u00e0 ph\u00ed pool \u0111\u01b0\u1ee3c t\u00ednh tr\u00ean s\u1ed1 ti\u1ec1n \u0111\u01b0a v\u00e0o. Trong pool v\u00ed d\u1ee5 c\u1ee7a ch\u00fang t\u00f4i, ch\u00eanh l\u1ec7ch 1% v\u1edbi giao d\u1ecbch t\u1ed1i \u01b0u kho\u1ea3ng 24,400 USDC mang l\u1ea1i kho\u1ea3ng 85 USDC g\u1ed9p, t\u1ee9c kho\u1ea3ng 0.35%, tr\u01b0\u1edbc m\u1ecdi chi ph\u00ed b\u00ean ngo\u00e0i.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Arbitrage CEX-DEX c\u00f3 th\u1ec3 d\u00f9ng flash loan kh\u00f4ng?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Kh\u00f4ng th\u1ec3 d\u00f9ng cho to\u00e0n b\u1ed9 giao d\u1ecbch. Flash loan ph\u1ea3i \u0111\u01b0\u1ee3c ho\u00e0n tr\u1ea3 trong c\u00f9ng m\u1ed9t giao d\u1ecbch, c\u00f2n ch\u00e2n s\u00e0n t\u1eadp trung di\u1ec5n ra b\u00ean ngo\u00e0i blockchain. Flash loan ph\u00f9 h\u1ee3p v\u1edbi arbitrage thu\u1ea7n on-chain gi\u1eefa c\u00e1c pool; arbitrage CEX-DEX c\u1ea7n v\u1ed1n t\u1ed3n kho c\u1ee7a ch\u00ednh b\u1ea1n \u1edf c\u1ea3 hai ph\u00eda.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Trong arbitrage CEX-DEX, ch\u00e2n n\u00e0o th\u1ef1c hi\u1ec7n tr\u01b0\u1edbc?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"C\u1ea3 hai c\u00e1ch \u0111\u1ec1u \u0111\u01b0\u1ee3c. Swap tr\u01b0\u1edbc ngh\u0129a l\u00e0 b\u1ea1n ch\u1ec9 ph\u00f2ng h\u1ed9 ph\u1ea7n \u0111\u00e3 kh\u1edbp nh\u01b0ng ch\u1ecbu r\u1ee7i ro th\u1ecb tr\u01b0\u1eddng cho \u0111\u1ebfn khi block \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn; ph\u00f2ng h\u1ed9 tr\u01b0\u1edbc gi\u00fap ch\u1ed1t gi\u00e1 nh\u01b0ng \u0111\u1ec3 l\u1ea1i m\u1ed9t v\u1ecb th\u1ebf n\u1ebfu l\u1ec7nh swap th\u1ea5t b\u1ea1i. H\u1ea7u h\u1ebft h\u1ec7 th\u1ed1ng t\u1ef1 \u0111\u1ed9ng g\u1eedi c\u1ea3 hai th\u1eadt nhanh v\u00e0 \u0111\u00f3ng m\u1ecdi ch\u00e2n l\u1ec7nh b\u1ecb b\u1ecf l\u1ea1i theo quy t\u1eafc.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Ph\u1ea7n m\u1ec1m BJF c\u00f3 giao d\u1ecbch tr\u00ean s\u00e0n phi t\u1eadp trung kh\u00f4ng?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Kh\u00f4ng. C\u00e1c c\u00f4ng c\u1ee5 arbitrage crypto c\u1ee7a BJF l\u00e0m vi\u1ec7c v\u1edbi c\u00e1c s\u00e0n t\u1eadp trung th\u00f4ng qua API c\u1ee7a ch\u00fang. Tr\u00ecnh qu\u00e9t mi\u1ec5n ph\u00ed v\u00e0 VIP Crypto Arbitrage bao qu\u00e1t ch\u00eanh l\u1ec7ch gi\u00e1 gi\u1eefa c\u00e1c s\u00e0n t\u1eadp trung.\"\n          }\n        }\n      ]\n    }\n  ]\n}\n<\/script>\n<\/div>\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Arbitrage CEX-DEX ho\u1ea1t \u0111\u1ed9ng th\u1ebf n\u00e0o v\u00e0 th\u1ef1c s\u1ef1 ki\u1ebfm \u0111\u01b0\u1ee3c bao nhi\u00eau: v\u00ec sao pool phi t\u1eadp trung ch\u1eadm h\u01a1n s\u00e0n t\u1eadp trung, t\u00e1c \u0111\u1ed9ng gi\u00e1 AMM v\u00e0 quy m\u00f4 giao d\u1ecbch t\u1ed1i \u01b0u, to\u00e0n b\u1ed9 chi ph\u00ed cho ch\u00eanh l\u1ec7ch 1%, v\u00f9ng kh\u00f4ng giao d\u1ecbch, r\u1ee7i ro th\u1ef1c thi hai ch\u00e2n l\u1ec7nh, MEV v\u00e0 block builder, l\u1ef1a ch\u1ecdn chu\u1ed7i v\u00e0 t\u00e1i c\u00e2n b\u1eb1ng v\u1ed1n t\u1ed3n kho.<\/p>\n","protected":false},"author":1,"featured_media":15777,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[53,72],"tags":[],"class_list":["post-15776","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-arbitrage-software","category-cryptoarbitrage-software"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.7 (Yoast SEO v28.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Kinh doanh ch\u00eanh l\u1ec7ch gi\u00e1 CEX-DEX: AMM, gas, MEV v\u00e0 chi ph\u00ed<\/title>\n<meta name=\"description\" content=\"Arbitrage CEX-DEX ho\u1ea1t \u0111\u1ed9ng th\u1ebf n\u00e0o, v\u00ec sao ch\u00eanh l\u1ec7ch 1% kh\u00f4ng ph\u1ea3i l\u1ee3i nhu\u1eadn 1%, t\u00e1c \u0111\u1ed9ng gi\u00e1 AMM, quy m\u00f4 t\u1ed1i \u01b0u, gas, MEV v\u00e0 m\u1ee9c ch\u00eanh l\u1ec7ch h\u00f2a v\u1ed1n.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/bjftradinggroup.com\/vi\/cex-dex-arbitrage\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kinh doanh ch\u00eanh l\u1ec7ch gi\u00e1 CEX-DEX: AMM, gas, MEV v\u00e0 chi ph\u00ed\" \/>\n<meta property=\"og:description\" content=\"Arbitrage CEX-DEX ho\u1ea1t \u0111\u1ed9ng th\u1ebf n\u00e0o, v\u00ec sao ch\u00eanh l\u1ec7ch 1% kh\u00f4ng ph\u1ea3i l\u1ee3i nhu\u1eadn 1%, t\u00e1c \u0111\u1ed9ng gi\u00e1 AMM, quy m\u00f4 t\u1ed1i \u01b0u, gas, MEV v\u00e0 m\u1ee9c ch\u00eanh l\u1ec7ch h\u00f2a v\u1ed1n.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/bjftradinggroup.com\/vi\/cex-dex-arbitrage\/\" \/>\n<meta property=\"og:site_name\" content=\"Forex &amp; Cryptocurrencies Arbitrage Software | BJF Trading Group 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