How Does It Work

How StableUnit Works — and Why USD Pro Earns Yield

When a user wants liquidity, they deposit collateral (e.g., ETH, USDC, or an LP token) into a StableUnit vault to borrow USD Pro. At that moment StableUnit offers a “Boost collateral” option: • If the user accepts, the protocol instantly routes the collateral into a high-grade, on-chain strategy (staking ETH, restaking, or farming an LP) so the collateral itself starts earning extra yield. • If the user declines, the collateral simply stays idle in the vault.

Either way, the user walks away with liquid USD Pro, but an upgraded vault enjoys a discounted Borrow rate because the protocol keeps a slice of the boosted yield.

That is the first revenue stream of the StableUnit protocol: Yield Spread – the portion of strategy yield captured when users choose the Boosted path.

The second one is Stability Fees – interest paid by all borrowers on their outstanding USD Pro debt.

And the third is Liquidation Surplus – when a position is liquidated, any collateral left after repaying debt and fees is swept into protocol revenue.

All revenue accumulates in real time and is rebated to USD Pro holders every block: the token’s supply (or per-token index) increases continuously, so simply holding USD Pro causes the balance in a user’s wallet to rise.