Answer
What is a stablecoin TVL boost?
It's a time-boxed campaign that raises the effective APY on a stablecoin vault by paying rewards on top of its native yield, so deposits land inside a defined window instead of trickling in. On Barker the budget streams daily to verified depositors with wallet-level on-chain attribution, and the campaign page stays public after it ends so the numbers can still be checked.
It sits on top of the vault's own yield rather than replacing it. The native yield comes from whatever the strategy earns — lending, RWA coupons, funding. The boost is separate money: a budget the protocol or issuer puts up and streams to depositors on a fixed schedule. Users see one blended APY, but the two components are tracked separately, so when the boost ends what remains is simply the vault's own yield.
It is also not a rate anyone quotes you. The implied boost APY is arithmetic — budget × 365 ÷ (target TVL × days) — which means you can solve it from whichever side you have fixed. And it is not paid for holding: the rewarded event is the deposit itself, so a wallet that sits on a balance without depositing accrues nothing.
Read this in context
This answer is one piece of the full TVL growth guide — the five growth paths side by side, the boost formula with a live calculator, and the campaigns these numbers came from.
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