Opening
Taken the moment the position is created.
1% of margin charged once, up front
What it means
- Leaves your balance alongside the margin itself
- Entry is the live Polymarket midpoint, with nothing added
- A 0.1 ETH margin costs 0.001 ETH to open
Fees
One percent of your margin when a position opens, and one percent when it closes. No spread on top of the Polymarket midpoint, no funding rate, no withdrawal fee, no minimum balance.
A 0.1 ETH position at 5x costs 0.001 ETH to open and 0.001 ETH to close, whatever the market does in between. Liquidation costs nothing extra: the margin is already gone at that point, and it is the most you can lose.
What you pay
Both are charged on the margin you post, not on your leveraged exposure, so leverage never multiplies what you pay us.
Taken the moment the position is created.
1% of margin charged once, up front
Taken out of the payout when the position settles.
1% of margin charged once, at the end
The costs other venues add and we do not.
Zero spread, funding, withdrawal
The mechanics
The same arithmetic runs on every position, on every market, for everyone.
Which way the odds went
Your margin moves with the percentage change in the probability, not the percentage points. A market going from 20% to 22% is a 10% move, not a 2% one.
How much leverage you took
Leverage multiplies that change. At 5x, a 10% move in the odds is 50% of your margin, up or down.
Whether you hit the liquidation level
A move of 1/leverage against you wipes the position out. At 10x that is a 10% move in the odds, at 2x it is 50%. Past that point the margin is gone and nothing more is owed.
Where the market finally settled
Hold to resolution and the position closes at the final price, 0 or 1. If Polymarket closes the market without resolving it, the last mark is used instead.
Connect a wallet, deposit ETH on Robinhood Chain and the board is open.