Fees and staking

The matching fee

Each side pays 0.10 % of what crosses, in USDC, and only on what crosses:

• a buyer pays the fee on top of the notional, out of the USDC the order locked;
• a seller has the fee taken from the USDC the sale brings in.

An order that sits out or does not cross pays nothing.

Where it goes

Every fee is split by the same call that settles the order:

• 80 % to $BPOOL stakers, in USDC, through a reward accumulator;
• 20 % to the treasury.

When nobody stakes, the whole fee goes to the treasury. The split and the fee rate are set when the program is initialized.

The bond

Every commit takes a bond of 0.10 USDC from your Blackpool USDC balance. It comes back when your order opens, whether it trades or sits out. It is kept, and split like a fee, in two cases:

• your order is never opened before the reveal window ends;
• your order opens but the funds it needs are no longer in your balance.

The bond is what makes a free option expensive: you cannot commit to every outcome and open only the one you like.

Staking $BPOOL

Stake $BPOOL from the app. No lockup: unstake whenever you want. Rewards accrue in USDC and land in your Blackpool USDC balance when you stake, unstake or claim; withdraw them like any other balance. The stake token is set once by the admin and can never be changed after that.