고정된 트윗
Breakdown of What Actually Happened (from public analyses and on-chain data shared on X)
The victim/user swapped ~$50.4M in wrapped USDT (aEthUSDT) for AAVE via the Aave interface → routed through CoW Protocol.
Due to insane slippage (liquidity on the path was nowhere near deep enough), they received only 324–331 AAVE ($36k–$37k at the time).
This created a huge price dislocation across DEX pools (primarily Uniswap/SushiSwap for the relevant pairs).
An MEV searcher/bot immediately spotted it and executed atomic backruns/arbitrage to correct the price:One major backrun involved reversing the direction (e.g., selling AAVE back to ETH/USDT to capture the mispricing).
Additional smaller arbs and related txs also profited.
Where the ~$50M "value" flowed
User received: ~$36k–$37k in AAVE → ~99.9% loss.
CoW Swap solver fee: ~$619k (normal protocol cut).
DEX fees + minor arbs: ~$3–4M scattered.
MEV bot profit: ~$10M–$12.5M net (after paying for inclusion).
Titan Builder received from the bot: 16,927 ETH
($34.8M at the time)
this was the block bid/tip the bot paid to get its bundle included.Titan forwarded 568 ETH ($1.2M) to the actual block proposer (a Lido validator).
Titan kept: ~$33.6M (builder's net take).
Total MEV extracted in that block: ~$44–$45M+ (almost the entire misplaced value, minus small protocol/DEX fees).
Why this shows maximizationIn MEV-Boost/PBS, builders like Titan compete by submitting the highest-bidding block to relays. The bot had to outbid everyone else to include its profitable bundle → it paid the absolute top dollar Titan could demand for that slot.
@titanbuilderxyz didn't leave money on the table they extracted ~73% of the total MEV value created by the mispriced order (builders typically take 60–80% in big MEV events, bots keep the rest after costs).
If the bot had paid less, another searcher could have outbid and taken the arb → so the payment was pushed to the economic maximum the opportunity supported.
Haseeb ＞|＜@hosseeb
Insane story... Some guy tried to buy $50M of $AAVE on his phone, like 3% of the total supply, tapped through <INSANE SLIPPAGE AHEAD> warnings, ended up with only $40K of AAVE. Block builder made off with ~$40M, Aave refunds $600K of fees. Net result, AAVE token is down. 💀
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