A 3% Swing Triggers $36M in Morph​o Liquidations

Ethereum‑based DeFi lending platform Morph​o saw a $36.4 million wave of liquidations after a roughly 3% price move.

The Tipping Point: PT‑reUSD’s Collapse

Pendle’s PT‑reUSD, a token pegged to the dollar‑denominated reUSD, operates as a seesaw with its counterpart YT‑reUSD. A single wallet’s massive purchase of YT‑reUSD pushed the implied annual yield to 20%, simultaneously dragging PT‑reUSD’s price down by about 3%.

Leveraged Loop and Margin Squeeze

■Deposited PT‑reUSD as collateral on Morph​o.

■Borrowed USDC, used it to buy more PT‑reUSD, and repeated the cycle.

■Each iteration amplified returns but shrank the safety margin to <3%.

■The razor‑thin margin meant a modest 3% price dip triggered automatic liquidation.

Oracle Mechanics and the Vulnerability

Morph​o’s price feed selects the lower of two values: (1) the 15‑minute volume‑weighted average price, and (2) a fixed schedule that gradually climbs toward $1 at maturity. When market price fell below the schedule, the average price became the binding figure, causing the collateral valuation to drop sharply.

Market Participants React

■Steakhouse Financial: Reported that the liquidations fully covered all loans; no bad debt was created.

■Pendle: Stated the oracle was configured correctly and performed as designed.

■Anvil: Highlighted that its shared on‑chain collateral layer remained untouched by the event.

Outlook and Risk Mitigation

■DeFi protocols should tighten collateral‑monitoring rules for strategies that run on ultra‑thin margins.

■Oracle designs could incorporate longer averaging windows or dual‑layer safeguards to cushion abrupt price swings.

■Transparent, real‑time liquidation reporting will be essential to curb systemic spill‑over effects.

Emre Can – DeFi & Web3 Ecosystem Analyst: This episode underscores the fragility of “yield‑stacking” tactics in DeFi. A sub‑3% margin leaves leveraged positions vulnerable to automatic closure, and a single large trade can cascade into multi‑million‑dollar liquidations. Platforms need dynamic risk parameters that adapt to volatility spikes, otherwise oracle‑driven liquidations will continue to pose systemic threats.