Open Earn, pick a pool, and enter an amount in You deposit. The first deposit of an asset asks your wallet to approve it, then to confirm. Shares arrive in the same transaction.

A deposit is priced at the pool's share value at that moment, calculated conservatively so that a new depositor can never take value from existing ones. A pool can have a deposit cap; the button tells you if you are over it.

There is no minimum term. You can withdraw the available part of your balance at any time.

The ticket shows three figures. Your balance is what your shares are worth. Available now is what you can withdraw right now. Backing trades is the difference.

The difference exists because the pool locks the full maximum payout of every open position. That money is still yours in proportion, and it is earning premium, but it cannot leave the pool until the positions it backs have settled. As they settle, it frees.

You are not locked behind any specific position. The pool is one book, and whatever is idle in it is available to every depositor. If other depositors have withdrawn the idle part before you, you wait for the next settlement. The pool page's Earliest live expiry shows when that is.

Switch the ticket to Withdraw, enter an amount up to Available now, and confirm. The withdrawal is priced at the pool's share value at that moment, calculated conservatively in the other direction so that a departing depositor cannot take value from those who stay.

You receive the pool's asset: cbBTC from a long pool, USDC from a short pool.

When the pool cannot value its open positions, usually because the price feed is unsafe, both directions pause rather than let anyone trade shares at a wrong price. This is a protection for depositors, not a lock-up. It lifts as soon as the feed is healthy.

To leave a pool completely, withdraw Available now, then come back after the pool's open positions settle to withdraw the rest. The Max chip fills the largest amount the pool can pay right now.

Each deposit and withdrawal is one Base transaction, plus a one-time approval for each asset. Fees are a fraction of a cent, paid in ETH from your wallet.