You're being paid 2.91% to absorb price risk. Only ~2.91% of it is real fees — and they stop covering impermanent loss if SPYX-USDC diverges more than the pair moves.
Real fee/staking yield: 2.91% · token emissions: 0% of the headline.
The real fees here (~2.91%) can beat holding if SPYX-USDC 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.