Aave has increased the core borrow rate for its native stablecoin GHO, a move aimed at stabilizing the token's value as its redemption reserves shrink. The rate hike takes effect immediately across the protocol's markets, according to the Aave governance proposal that passed this week.
The change comes at a delicate moment for GHO, which has struggled to maintain its dollar peg since launching last year. The stablecoin is backed by a mix of crypto collateral deposited into Aave, and users can mint GHO against those assets. When the peg slips below $1, holders can redeem GHO for collateral at a discount — a process that drains the reserves set aside to absorb those redemptions.
Why the rate was raised
GHO's redemption reserves — the pool of assets available to honor redemptions — have been running low relative to the outstanding supply of the stablecoin. That's a problem: if too many holders redeem at once, the remaining reserves could be insufficient to cover the withdrawals, potentially triggering a broader loss of confidence in the peg.
By raising the borrow rate, Aave makes it more expensive to mint new GHO. The theory is straightforward. Higher borrowing costs discourage fresh issuance, which reduces the supply of GHO in circulation and eases pressure on the redemption mechanism. At the same time, a higher rate can make holding GHO more attractive for lenders, since they earn a larger yield on the stablecoin they supply.
The rate adjustment is part of a broader suite of tools Aave has used to manage GHO's stability, including adjustments to the minting cap and the interest rate strategy. But the core borrow rate is the most direct lever — and the one most likely to be felt immediately by users.
For anyone who has borrowed GHO against collateral on Aave, the cost of that loan just went up. The rate applies to all new and existing variable-rate borrows of GHO, meaning outstanding positions will accrue interest faster. That could prompt some borrowers to repay their loans or shift to other stablecoins with lower rates.
If enough borrowers exit, the supply of GHO shrinks — which is exactly what the rate hike is designed to achieve. But it also risks reducing liquidity in GHO markets. Fewer tokens in circulation can lead to wider spreads on decentralized exchanges, making it harder to trade GHO without moving its price. That, in turn, could make the stablecoin less useful for everyday DeFi activities like lending, borrowing, and yield farming.
Borrowers who stay put will face a higher cost of carry. Some may choose to deleverage, selling other assets to repay their GHO debt. Others might accept the higher rate if they expect GHO to regain its peg and the yield on their collateral to outpace the borrowing cost.
The liquidity tradeoff
Aave's decision highlights a tension at the heart of algorithmic and crypto-backed stablecoins: the tools that defend the peg can also make the token less attractive to use. Raising rates to protect reserves might stabilize the price, but it also raises the cost of doing business in GHO. If the stablecoin becomes too expensive to borrow, users may migrate to alternatives, reducing demand and potentially undermining the network effects that give GHO its utility.
The protocol has not announced any additional measures — such as changes to the minting cap or new incentives — alongside the rate hike. For now, the focus is on letting the higher rate work through the system. Aave's governance forum remains open for further proposals, and any subsequent adjustments would require another vote.
What to watch
The next few weeks will show whether the rate increase achieves its goal without choking off activity. Key metrics to watch include GHO's price on secondary markets, the size of the redemption reserves, and the total supply of GHO in circulation. If the peg holds and reserves stabilize, the rate could be lowered again. If not, Aave may need to consider more aggressive measures.
There's no fixed timeline for the next review. Aave's risk contributors typically monitor conditions continuously and can propose changes at any time. For borrowers, the immediate takeaway is simple: the cost of borrowing GHO just went up, and the protocol is betting that's enough to keep the stablecoin afloat.
