A Cardano user suffered a devastating $6.05 million loss while attempting to swap their ADA holdings for the USDA stablecoin on the Minswap decentralized exchange, according to onchain analyst ZachXBT. The incident underscores how thin liquidity can turn a routine trade into a catastrophic event.
Dormant Wallet Awakens, Instantly Burns Millions
A wallet that had lain dormant since 2020 suddenly sprang back to life, moving 14.4 million ADA (approximately $6.9 million at the time) in exchange for a mere 847,000 USDA. The ADA-USDA liquidity pool held only $1.5 million, making it woefully unprepared for such a large order. The resulting slippage sent the USDA stablecoin briefly rocketing to between $60 and $70 per coin — far above its intended $1 peg.
Arbitrageurs Jump In, Price Corrects Within an Hour
Arbitrage traders quickly capitalized on the chaos, scooping up millions of ADA as the price snapped back. Different data sources recorded varying peak prices: CoinGecko showed USDA topping out at $4.85, while Dexscreener and onchain sleuths like Lookonchain recorded the token blasting past $60. Dexscreener's 15-second interval chart indicates the wild jump lasted roughly 20 minutes before cooling off.
A Blunt Reminder of DeFi's Fragility
This episode is a stark reminder that even blockchain architecture cannot outsmart everyday human slipups. Smart contracts, immutable ledgers, and decentralized rails may keep the gears turning, but they cannot shield users from costly misclicks, overlooked liquidity pools, or underestimated fees. Cardano's DeFi stack will evolve, but no upgrade can fully patch the oldest bug in the system — human error.
The incident also exposes persistent liquidity weaknesses in Cardano's DeFi sector and renews calls for stronger stablecoin infrastructure. For traders, checking pool depth and slippage tolerance before large swaps is no longer optional — it is a survival skill.