Key Takeaways:
Circle’s Chief Economist Gordon Liao proposed elevating USDC’s Aave V3 Slope 2 fee to 50% to revive liquidity after a KelpDAO exploit. A $292 million KelpDAO rsETH bridge assault on April 18 drained Aave of as much as $15.1 billion in TVL inside days. Aave’s USDC pool sat at 99.87% utilization for 4 days, with below $3 million in obtainable liquidity as of April 22.
Circle Chief Economist Proposes Increased USDC Charges on Aave V3 to Restore Liquidity After KelpDAO Exploit
The proposal, filed as an Aave Request for Remark, asks Aave’s Threat Steward to instantly increase Slope 2 from 10% to 40% and decrease optimum utilization from 92% to 87%. A follow-on governance vote would push Slope 2 to 50% and optimum utilization to 85%. At 100% utilization below the goal configuration, USDC debtors would face a most fee of roughly 53.5%, in comparison with the present ceiling of roughly 14%.
Liao, who famous his views are private and never official Circle coverage, tied the proposal on to the April 18 KelpDAO rsETH exploit. Attackers exploited a vulnerability in KelpDAO’s bridge to siphon unbacked rsETH, deposit it as collateral on Aave V3, and borrow an estimated $200 million to $300 million in belongings, together with WETH and stablecoins. Aave froze rsETH markets on V3 and V4 to restrict additional injury, however not earlier than triggering what grew to become a widespread liquidity disaster.
The fallout was extreme. Aave’s whole worth locked (TVL) shed billions in a matter of days. Core markets, together with ETH, USDT, and USDC hit 100% utilization, successfully trapping depositor funds. Some customers resorted to borrowing towards stablecoins like GHO, DAI, and USDe to entry liquidity not directly.
The USDC pool grew to become a focus. In accordance with Aavescan knowledge from April 22, whole provide and borrows every sat close to $1.89 billion, with obtainable liquidity under $3 million. The pool had been pinned at roughly 99.87% utilization for 4 days, with variable borrow charges capped close to 13.82% and provide charges round 12.42%.
Liao’s proposal frames the flat post-kink fee because the core drawback. As a result of the present Slope 2 is low, rate-insensitive debtors handled the roughly 14% value as a payment to bypass queues moderately than a sign to exit. The consequence was a market that didn’t clear whilst depositors tried to withdraw.
Elevating the kink-slope steeply, Liao argued, would allow value discovery, deter debtors detached to fee ranges, and entice new USDC provide inside hours. He cited Treasury repo and fed funds markets as precedent for a way steep curves resolve short-term liquidity dislocations.
Circle CEO Jeremy Allaire publicly shared the proposal on X, drawing broader consideration to the governance dialogue. Threat service suppliers Llamarisk and Aave Labs have been recognized as key members anticipated to weigh in.
AAVE’s token value fell roughly 20% to 26% within the days following the exploit amid the outflow wave. The governance proposal has been interpreted by some market observers as a stabilizing sign.
The KelpDAO incident didn’t compromise Aave‘s good contracts immediately. The vulnerability originated in KelpDAO’s cross-chain bridge infrastructure. However the episode uncovered how unbacked collateral coming into via bridge exploits can generate unhealthy debt at a protocol degree, with estimates of unrecoverable losses starting from $124 million to $230 million throughout Aave markets, relying on how losses are in the end distributed.
Aave printed an rsETH incident report outlining restoration paths. Discussions about potential unhealthy debt absorption via mechanisms like slashing stkAAVE are ongoing.
Liao’s two-phase method retains Slope 1 at 3.5%, the bottom fee at 0%, and the reserve issue at 10% unchanged. The interim Threat Steward motion might take impact the identical day if authorised, whereas the total goal configuration requires a regular five-to-seven-day governance vote.
