Here's how the vbUSDC yield mechanism operates:

Deposit your vbUSDC into the vault contract, and you'll receive yvvbUSDC tokens—these function as ERC-4626 standard vault shares representing your proportional claim on the pool.

The beauty lies in the passive earning model: whenever donations flow into the vault, the per-token value automatically appreciates across all holders on a pro-rata basis. No manual claiming, no additional clicks required. Your vault position grows organically as the underlying asset accumulates.

This means your yvvbUSDC holdings compound value passively, reflecting both your initial deposit and earned yields, all while remaining secured within the protocol.