Aave and Pendle may have found a way to keep yield capital from ever leaving DeFi

Aave is approaching a $67 million collateral rollover as one of its fastest-growing fixed-yield trades reaches maturity.

About 67.4 million PT-AUSD-8OCT2026 tokens were supplied as collateral on Aave V3’s Monad market as of Oct. 2, according to risk adviser LlamaRisk. The Pendle principal tokens mature Oct. 8, when each becomes redeemable for one AUSD and its fixed-yield appreciation ends.

A replacement is already being prepared. Pendle deployed a Dec. 17 AUSD principal-token market last month, and TokenLogic has proposed listing it on Aave so borrowers can move into the next maturity without giving up the collateral utility that helped the October market expand.

The timing coincides with accelerating demand for AUSD credit on Monad. On Oct. 3, TokenLogic said active AUSD loans on Aave jumped 113% to $8.7 million from $4.1 million in 15 days, while user deposits more than doubled to $11.2 million.

That creates an emerging cycle between Pendle’s fixed-yield markets and Aave’s lending infrastructure. Investors can lock in a return through PT-AUSD, use the position as collateral to borrow stablecoins, and then move into a later-dated PT when the original token matures.

“Fixed yield becomes collateral. Collateral creates credit. Then the next maturity keeps the cycle moving,” DeFi researcher Andree said, while describing the relationship between the protocols.

The Oct. 8 expiry will provide the first large-scale test of whether that cycle can continue across maturities.

The October PT began with considerably less capacity than it ultimately attracted.

Aave initially launched the collateral market with a 20 million-token supply cap. Users filled it by late August, prompting LlamaRisk to recommend an increase to 40 million. That limit was also fully utilized within days, leading the risk adviser to recommend another increase to 80 million.

By Oct. 2, 67.4 million PT was supplied.

The rapid cap expansions show why the proposed December market size should not be treated as a permanent ceiling. TokenLogic proposed another 20 million initial cap for PT-AUSD-17DEC2026, while LlamaRisk recommended starting at 30 million.

That is less than half the amount sitting in the expiring market, but the October precedent shows Aave can expand capacity if demand, liquidity, and borrower health justify it.

LlamaRisk explicitly described the December PT as the rollover destination for the October position and said as much as 67.4 million of Aave collateral could potentially migrate into it.

The October market also shows that much of the supplied PT has been used actively rather than left idle. In an Aug. 31 assessment, LlamaRisk found that the 18 largest suppliers all carried debt, primarily in USDC, with additional borrowing in GHO, USDe and USDT0.