You're being paid 0.51% to absorb price risk. Only ~0.47% of it is real fees (the other ~6% is decaying emissions) — and they stop covering impermanent loss if USDC-USDY diverges more than the pair moves.
Real fee/staking yield: 0.47% · token emissions: 6% of the headline.
The real fees here (~0.47%) can beat holding if USDC-USDY stays calm, but a sharp divergence flips that. It's a genuine short-volatility bet, not free income.
Source: DefiLlama. Verdict is a heuristic over public data, not financial advice.