A cryptocurrency trader attempting to purchase AAVE (AAVE) tokens using roughly $50 million in USDT (USDT) suffered a massive loss after executing a high-slippage transaction that ultimately returned only 324 AAVE tokens.
The trade, executed through the Aave interface and routed via CoW DAO, triggered warnings before completion because of the unusually large order size.
According to Aave founder Stani Kulechov, the trading interface displayed clear alerts about the extreme price impact and required the user to explicitly acknowledge the risk before proceeding.
Despite those warnings, the trader confirmed the transaction on a mobile device and completed the swap, accepting the high slippage conditions.
High Slippage Turns $50M Trade Into Minimal Token Return
Large transactions in decentralized finance can dramatically move prices because liquidity pools rely on automated market-making mechanisms rather than traditional order books.
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When a swap significantly exceeds the available liquidity, the algorithm raises the price as the trade progresses, resulting in “slippage,” where the final execution price diverges sharply from the initial quote.
In this case, the unusually large order pushed the price far beyond expected levels, leaving the user with only 324 AAVE tokens despite committing tens of millions of dollars in stablecoins.
Kulechov said the transaction could not have been completed without the trader explicitly confirming the risk through the interface warning.
“Given the unusually large size of the single order, the Aave interface warned the user about extraordinary slippage and required confirmation,” he said.
Protocols Say Systems Worked As Designed
CoW DAO, whose routing system facilitated the transaction, said there was no evidence of an exploit or malicious activity.
“Based on what we’ve seen so far, there’s no indication of a protocol exploit,” the platform said in a statement. “The transaction executed according to the parameters of the signed order.”
Aave also noted that such events can occur in decentralized finance, though transactions of this magnitude are rare.
To mitigate some of the impact, Aave said it plans to refund approximately $600,000 in fees generated by the trade while attempting to contact the affected user.
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