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Yield on stable balances

Summary

What to expect

Variable rate

The rate is not fixed. It moves with lending markets and protocol fees, similar to how savings APYs change.

Fees

The protocol may charge fees on some actions (deposits, spends, etc.).

Shared pool

Yield is shared across everyone using the pool — your share grows as the collective backing grows.

Where the yield comes from

  1. Lending (via Morpho) — USDC held in ZeroLedger is pooled and deposited into permissionless and immutable Morpho Vault that automatically lents USDC on isolated ETH/USDC Morpho Market. You do not need to open or manage a separate lending position yourself.

  2. Protocol fees — Deposit, spend and withdraw fees collected by the protocol are shared back across everyone in the pool.

  3. When it shows up in your balance — You wallet balance is updated each time someone deposit, spend, or withdraw, because those actions settle against the shared pool. There is no separate “claim yield” button: earnings build in the pool and gradually show up in what your balance is worth over time.

Curator performance fee — The vault operator can take a small share of strategy gains before the rest is added to the pool for all users.

What this enables

  • Treat ZeroLedger as a private savings layer: keep USDC in the system and passively earn lending yield routed through Morpho, without managing a separate lending position yourself.

  • Send and receive USDC inside ZeroLedger (including shielded flows) while the aggregate backing remains invested; yield is shared pro rata among everyone in the virtual pool according to the vault math.