Frax Finance's frxUSD stablecoin has become the largest deposited asset on Aave v4, with holdings reaching $32.5 million, according to Aave Pro deposit data. The stablecoin now accounts for roughly 22 percent of total active borrows on the new lending protocol, with an APY of 5.50 percent.

Aave v4 launched earlier this year with changes to the protocol's core architecture. The v4 deployment is the first major upgrade to Aave's lending mechanics in several years, and deposits of frxUSD have grown rapidly since launch. frxUSD is collateralized by ether and FRAX governance tokens.

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Frax biweekly updates show frxUSD deposits stood at approximately $20 million in late May, meaning current levels represent a $12.5 million increase over that window. The jump positions frxUSD ahead of other assets on v4 by deposit volume. Aave v4 operates as a parallel instance to the live v3 protocol, allowing the protocol to test new features and risk parameters with a contained user base.

Frax Finance has positioned frxUSD as a capital-efficient stablecoin alternative, competing against USDC, USDT, and DAI across lending platforms and decentralized finance protocols. The concentration of deposits on a single asset in an early-stage protocol deployment carries elevated risk; Aave v4 remains in an active development phase.