A price decline of around 3% recently triggered approximately USD 36 million in liquidations on the Ethereum lending protocol Morpho, on Tuesday, August 25, showing how leverage can turn small movements in decentralized finance assets into much larger losses.

The liquidation did not start with Ethereum itself. It involved a Pendle principal token called PT-reUSD tied to reUSD, a dollar-denominated asset that pays interest to holders and leveraged borrowing positions built around it. The event shows how interconnected DeFi markets can amplify seemingly modest price changes.

Pendle Splits Yield-Bearing Assets into Two Tokens

Pendle allows an interest-bearing asset to be separated into a principal token (PT) and a yield token (YT). The principal token represents the underlying value that can be redeemed at maturity, while the yield token represents the future income generated before that date.

PT-reUSD in this market was scheduled to mature on December 10. As the two pieces represent different parts of the same economic asset, their prices are connected.

One Large Trade Shifted the Yield Market

The liquidation began when one wallet heavily purchased YT-reUSD. Demand pushed implied yields to around 20%, which reduced the value of the paired PT-reUSD token.

PT-reUSD fell roughly 3%. Normally, a 3% move would not be considered extreme in crypto. However, borrowers had deposited PT-reUSD as collateral on Morpho and borrowed USD Coin against it. 

Once collateral values declined enough, those loans crossed their liquidation thresholds.

Liquidations Reached About USD 36 Million

Morpho liquidators automatically began closing undercollateralized positions. The result was around USD 36.4 million in forced liquidations, despite the underlying collateral moving only a few percentage points.

This happened as leverage magnified price sensitivity. A borrower operating close to the permitted loan-to-value limit does not need the collateral to collapse before liquidation begins.

This also highlights the importance of oracle design. Morpho’s market used an oracle based on a 15-minute average or a predetermined path toward the token’s USD 1 maturity value. Pendle said the price source functioned as configured.

No Bad Debt Was Reported

Despite the size of the liquidation cascade, Steakhouse Financial reported that liquidation proceeds were sufficient to repay outstanding loans and that the market did not suffer bad debt. A liquidation can be painful for leveraged borrowers without necessarily producing a protocol insolvency.

The Lesson is About Leverage, Not Just Price

The event shows why DeFi risk cannot be measured only by the volatility of the underlying token. Collateral structure, leverage, oracle design, market liquidity and liquidation thresholds matter together. A 3% move in an unfamiliar yield instrument can have far greater consequences than a much larger move in a deeply liquid asset.

For borrowers, the relevant question is not simply how far a token might fall, but how close their position already is to forced liquidation.

Also Read: Ethereum vs. Tokenized Assets: Why Institutional Adoption Could Strengthen ETH's Role in Finance

FAQs:

1. What caused the USD 36 million DeFi liquidation event?

A wallet heavily bought YT-reUSD, pushing implied yields higher and reducing the value of the paired PT-reUSD token. PT-reUSD fell about 3%, causing leveraged Morpho positions to cross liquidation thresholds.

2. What is PT-reUSD?

PT-reUSD is a Pendle principal token linked to reUSD. It represents the underlying value redeemable at maturity, while the corresponding yield token represents future yield generated before that date.

3. Why did only a 3% price move cause such large liquidations?

Borrowers were using PT-reUSD as collateral while operating close to their loan-to-value limits. Leverage magnified the effect of the relatively small price decline and triggered forced position closures.

4. Did Morpho suffer bad debt from the liquidation?

No. Steakhouse Financial reported that liquidation proceeds were sufficient to repay outstanding loans. The event caused large borrower losses but did not result in protocol bad debt.

5. What does the event show about DeFi risk?

DeFi risk depends on more than token volatility. Collateral structure, leverage, liquidity, oracle design and liquidation thresholds can combine to make even small price movements financially significant.