What would cause
a loss here

Each sleeve is held because of a specific premium, and every premium is payment for a specific risk. Naming them is the job; a strategy that cannot name what would break it is not understood well enough to fund.

The register

RiskWhy it applies hereHow it is controlled
Stablecoin depegThe dominant risk in the book. Most sleeves hold synthetic or yield-bearing dollars rather than USDC.Every underlying watched against NAV daily. Bands at −0.5% / −2% / −5%. Exit is triggered by peg, not by the rate.
Withdrawal liquidityA published rate says nothing about whether the position can be left.Redeemable liquidity measured before entry and monitored after. Positions whose exit depends on a borrower repaying are declined.
ConcentrationTwo vaults can look like diversification while sharing one issuer.Exposure decomposed to the token and summed across sleeves. Single-issuer exposure capped by mandate.
Smart contractAny contract can fail regardless of how well the rate verifies.Venue age, audit history and TVL are entry filters. Position size is capped as a share of each venue.
Impermanent lossLiquidity positions lose to arbitrage in proportion to volatility times concentration.Fee income is tested against loss-versus-rebalancing at the position's own concentration before entry. Most candidate pools fail.
Rate decayIncentive campaigns end; young vaults flatter their thirty-day numbers.Budgeting uses the ninety-day figure. Sleeves under ninety days old are sized as trials.

None of these controls make a position safe. They make the risk legible and the size deliberate, which is the most an allocator should claim.