Posts  / #POST-221857
REDDIT

One of the craziest DeFi mistakes in a while.

E
Mar 13, 2026 · 08:06

Trader tried to buy $50M of AAVE… and ended up with $36K.

A trader attempted to swap about **$50.4M in USDT for AAVE**, but confirmed the trade with **99% slippage**.

The interface actually warned about the price impact (twice), but the order was still approved.

Result:
$50M in → about **$36K worth of** [AAVE](https://coinmarketcap.com/currencies/aave/).

Most of the value was captured by MEV bots and block builders once the trade moved the price far above market levels. Around **$34M reportedly went to the block builder**, and about **$600K was taken in protocol fees**.

The Aave team said they are trying to contact the trader and possibly return the \~$600K in fees.

Full article:
[https://btcusa.com/crypto-trader-loses-50-million-after-executing-swap-with-99-slippage/](https://btcusa.com/crypto-trader-loses-50-million-after-executing-swap-with-99-slippage/)

Always double-check your slippage settings… especially on huge trades.

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