Overview
Cap is a decentralized stablecoin protocol built on Ethereum, leveraging Symbiotic’s Universal Staking to deliver yield-bearing stablecoins with sustainable returns. By separating yield generation from risk, Cap enables institutional stakers to earn premiums while underwriting operator strategies, ensuring stablecoin holders are fully protected from losses.
Key facts
| Expected APY |
~1.75% |
| Lock-up period |
7 days |
| Assets eligible |
Blue-chip assets on Ethereum with a low cost of capital (ex: wstETH, wBTC) |
| Max. Slashing risk |
Up to 100% (mitigated through borrower diligence and legal structuring) |
How Cap Works

- Stablecoin Mechanism: Users deposit stablecoins to mint cUSD, a fully redeemable 1:1 backed stablecoin. Users can choose to stake cUSD, which turns it into stcUSD generating yield funded by operators borrowing from the reserve vault.
- Operator Model: Accredited financial entities (e.g., market makers, arbitrage desks) borrow the Stablecoins from the reserve vault to deploy it in yield-generating strategies, paying a fixed benchmark yield to stablecoin holders and a premium to Symbiotic Vaults.
- Symbiotic Integration: Symbiotic Vaults get delegations from stakers and post collateral to guarantee operator performance. Each vault is dedicated to Cap, isolating risk to specific operators.
- Guarantee System: Stakers’ collateral ensures operator performance. If an operator doesn’t repay, the system automatically and transparently slashes the posted collateral (cuts into the staker’s posted assets) to cover the shortfall.
- Legal Agreements: The model includes legal contracts between Operators and Symbiotic Vaults that require Operators to reimburse Vaults if slashing occurs, providing an additional layer of protection beyond on-chain mechanisms.
Yield Opportunity
- Real Yield: Stakers earn a fixed premium paid in stablecoins (USDC), offering stable, predictable returns without exposure to volatile tokens.
- High Returns: Cap’s model delivers significantly higher yields than traditional staking, driven by operator strategies in high-frequency trading, RWAs, and arbitrage.
- Flexible Rewards: Periodic fee redemption allows stakers to access profits before loan maturity, enhancing cash flow.
Risk Profile
- Slashing Risk: Up to 100% of delegated collateral may be slashed if an operator defaults. Risk is mitigated by:
- Operators chosen through a selective process
- Off-chain legal agreements enabling stakers to seek recourse from defaulting operators.
- Clear on-chain slashing conditions that trigger when operators fail to make verifiable repayments, making enforcement clear and automatic.
- Price Volatility: Collateral assets like WBTC or ETH face liquidation risk if their prices drop, requiring active monitoring or capital buffers.
- Liquidity Risk: Collateral is locked for the loan duration, plus a withdrawal period, limiting redeployment flexibility.
- Mitigation: Stakers can diversify across operators, negotiate tailored premiums, and leverage Symbiotic’s programmable vaults to balance risk and reward.