Crypto Trader Loses $50M in Aave Swap Slippage

A cryptocurrency trader suffered a staggering loss of nearly 50 million dollars on March 12, 2026, after attempting to swap 50.4 million dollars worth of USDT stablecoins for AAVE tokens on the Aave decentralized finance platform via the Ethereum blockchain. The transaction, executed through the Aave interface and routed via CoW Protocol, resulted in the trader receiving only about 36,000 dollars worth of AAVE due to extreme slippage from insufficient liquidity in the targeted pools.

Blockchain data from Etherscan confirms the swap occurred in Ethereum block 24,643,151, converting 50.43 million in aEthUSDT—interest-bearing versions of the stablecoin deposited in Aave—for 327.24 aEthAAVE tokens. At the time, AAVE traded around 111 dollars, leaving the trader with an implied loss of approximately 49.96 million dollars relative to the input amount. The incident unfolded when the trader, using a mobile device, initiated the large single order despite interface warnings flagging a potential 99 percent price impact.

Slippage in decentralized exchanges arises when a trade's size overwhelms available liquidity in automated market maker pools, such as those on SushiSwap and Uniswap,...