Spark sUSDS vs Aave GHO: DeFi lending stablecoin depeg myths vs facts

MakerDAO Endgame and Spark liquidity

MakerDAO reorganizes into specialized SubDAOs like AllocatorDAOs and FacilitatorDAOs to manage operational complexity through an Endgame roadmap that involves a total redesign of the protocol into an independent blockchain. I see the transition involving the issuance of NewStable and NewGovToken, where MKR redenominated at a 1,200-to-1 ratio. MakerDAO distributes 35M native tokens for each subDAO to users who stake NewStable or NewGovToken annually. In the Sparklend markets on Ethereum, sUSDS holds an allocated value of $913.80 million with a 4.41% APY. Spark also manages $3 billion in TVL, which brings the total TVL of MakerDAO to $11.67 billion.

MakerDAO plans to use surplus assets exceeding $50M to provide on-chain liquidity for NewStable. This strategy includes the emission of 10M NewGovToken each year, which equals 8,333 MKR annually. The community passed the Endgame Constitution in late March because Rune Christensen allocated 65% of all votes cast. DAI holds approximately 3% of the $140 billion stablecoin market. In the Morpho markets on Base, sparkUSDC yields 4.88% plus a 0.15% spread. MakerDAO uses $1.2 billion in wstETH as collateral to mint DAI. This process generates revenue through stability fees charged on loans.

Aave risk modes and USDe integration

Aave v3 Ethereum uses Isolation Mode to list riskier assets like USDe while limiting systemic risk. The governance set an 80 million USDe supply cap and a 72% LTV. I avoid these assets without confirming current debt ceilings or borrow caps. Aave also provides E-Mode to increase efficiency for correlated assets.

The Aave governance framework enables PT-eUSDS Stablecoins E-Mode with 91% LTV and 93% liquidation threshold, which pushes capital efficiency higher than standard modes for those users who specifically utilize correlated assets in their positions. Aave Horizon, which launched on August 26, 2025, allows institutions to borrow against tokenized RWAs from issuers like Circle, Superstate, and Centrifuge. On September 28, 2026, supplying RLUSD in the Horizon market paid 4.90% APY. I also see the Umbrella USDT position on Aave v3 Ethereum paying 5.32% APY. On that same day, supplying USDT on Aave v3 Ethereum paid 3.75% APY and USDC paid 3.58% APY. Staked GHO (sGHO) paid 4.50% on September 28, 2026. Because rates rise sharply above target levels, you should monitor utilization curves. The network includes partners like Chainlink, Ethena, Ripple, Securitize, VanEck, and WisdomTree.

Stablecoin depeg and risk reality

Synthetix sUSD fell to $0.70, which is 30% below its $1.00 peg, while SNX traded at $0.63. This volatility demonstrates how crypto-collateralized assets fail when the underlying collateral value drops. SNX fell approximately 26% over 30 days, and sUSD stability depends on the market value of Synthetix SNX. Synthetix sUSD volatility stems from the SIP-420 launch. MakerDAO manages risk through SubDAOs that delegate day-to-day complexity to specialized groups. Aave uses Isolation Mode to restrict assets like USDT and sUSD due to their governance-related counterparty risks. I find the Aave strategy of using supply caps and isolation more direct for preventing insolvency. Aave provides liquidity through algorithmic rate settings that respond to supply and demand. Ethena manages USDe by monitoring exit liquidity at 1.25 times the supplied capital. Ethena also limits its allocation of stablecoin backing to Aave to 10% of the total stablecoin backing, which is $332 million. Can a decentralized protocol truly prevent a massive bank run during a systemic liquidity crisis?