Aave V3 MegaETH Raises stcUSD Supply Cap Amid Full Utilization

Aave V3 MegaETH is raising stcUSD's supply cap to 60 million after the stablecoin hit maximum utilization, though concentrated leverage and tight health factors pose emerging risks. The adjustment marks the protocol's first major parameter expansion on its highest-performance deployment.

Aave's risk management framework has triggered its first significant parameter adjustment on the MegaETH instance, with LlamaRisk recommending a 50% increase to stcUSD's supply cap. The stablecoin has hit maximum capacity at 40 million, forcing the protocol to expand headroom or risk capping new deposits. This move reflects the growing adoption of stcUSD on Aave's highest-performance deployment while surfacing important questions about concentration risk in optimized lending markets.

The recommendation raises stcUSD's supply cap from 40 million to 60 million, bringing post-change utilization to approximately 67%. This buffer allows continued growth without triggering the hard cap that has now reached 100% utilization. What makes this adjustment noteworthy is the underlying position structure: across major stcUSD suppliers, health factors cluster tightly between 1.01 and 2.12, with a median near 1.06. These low health factors indicate users are leveraging stcUSD heavily as collateral, borrowing USDm stablecoins in e-mode (which features a 90% loan-to-value threshold). The concentration risk is acute—just three addresses represent the bulk of supply, creating potential cascading liquidation scenarios if stcUSD's peg faces stress.

LlamaRisk's analysis underscores how e-mode borrowing amplifies both opportunity and fragility. By isolating correlated assets within high-LTV conditions, e-mode lets sophisticated users achieve capital efficiency, but it also creates tighter feedback loops between collateral price movements and solvency. The stcUSD-to-USDm price relationship now becomes the critical variable determining whether these positions remain healthy. A sharp stcUSD depeg—whether from market stress or broader stablecoin contagion—could rapidly trigger liquidations across the three concentrated addresses, potentially deepening any price dislocation.

The Risk Steward process that will execute this change represents Aave's automation of routine parameter updates, reducing governance overhead while maintaining safety guardrails. By anchoring supply expansion to demonstrated utilization patterns and health factor monitoring, the framework sidesteps both artificial scarcity and reckless over-issuance. Whether this increased cap attracts additional users or merely accommodates latent demand will reveal how much genuine appetite exists for leveraged stcUSD positioning on MegaETH versus the current concentration among a small set of power users.