A 3% token move triggered $36 million in Ethereum DeFi liquidations

Thirty-six million dollars in Ethereum lending positions liquidated in minutes after a single wallet's rapid trades on Pendle pushed PT-reUSD prices down 3%. According to Crypto Briefing, the cascade exposed how thin liquidity in derivative collateral can trigger cross-protocol contagion even when the underlying trade itself was modest in size.

On August 25, 2026, wallet 0x854e…690d executed 11 consecutive Pendle trades between 04:28 and 04:37 UTC, spending approximately $320,000 to convert SY-reUSD into over 9.5 million YT-reUSD. The nine-minute execution window moved PT-reUSD prices 3% lower and sent the implied annual yield for the PT-reUSD/YT-reUSD market above 20%, per Crypto Briefing's reporting.

The price move cascaded into Morpho, where borrowers had deployed PT-reUSD as collateral for USDC and USDT loans. Crypto Briefing reports that 33 liquidation events occurred across 19 to 20 borrower positions. Over 38 million PT-reUSD was seized, and roughly $35.19 million in USDC debt and $960,000 in USDT debt were repaid through liquidation, totaling $36.4 million in affected positions. Critically, no bad debt was created, per Crypto Briefing, meaning every liquidated position held sufficient collateral to cover its outstanding loan.

The structure of the incident exposed three layers of fragility. First, borrower positions carried LTV ratios of 91.5% before the incident, leaving less than a 10% buffer before liquidation, according to Crypto Briefing. Second, Pendle's PT-reUSD oracle uses the lower of two values: a 15-minute market average or a fixed discount curve with roughly 6% annual discount. When 11 trades execute in under nine minutes in a thin market, the 15-minute average shifts meaningfully, according to Crypto Briefing's analysis. Third, PT-reUSD is a derivative instrument, not a liquid base asset like ETH or USDC, expanding the manipulation surface area compared to traditional DeFi collateral.

Pendle launched a USDC vault on Morpho around August 4, 2026, approximately three weeks before the incident. The vault attracted over $15 million in deposits, with the majority allocated to PT-reUSD markets, per Crypto Briefing. Before the trades, implied yields for PT-reUSD sat around 11% with a December 10, 2026 maturity date.

Crypto Briefing's data shows that for every dollar the trader spent, roughly $114 in positions got liquidated across Morpho. Pendle has acknowledged the incident and said it is reviewing its oracle configurations, according to Crypto Briefing.

The Bottom Line: Watch whether Pendle's oracle adjustment extends beyond PT-reUSD to other yield-token markets, and whether Morpho or other lending protocols revise their LTV caps for derivative collateral more broadly. The story's premise inverts if protocols implement time-weighted average prices longer than 15 minutes or if yield-farming adoption pivots away from Pendle derivative collateral and toward base-layer assets.