Fees
Fees
Updated 4/29/2026
Granbay charges a 2% taker fee on every fill. The maker (the resting order that gets hit) pays nothing. This mirrors the Polymarket model and encourages liquidity provision.
The taker is the order that crosses the spread
When you place a market order or a limit that immediately matches, you are the taker. The fee is taken from your cash at fill time — the matched share count × clearing price × 2%.
When you place a limit that rests on the book until someone else matches it, you are the maker on that fill. No fee on your side.
Worked example
You market-BUY 100 YES at 50¢ = R$50 notional. Fee = R$50 × 2% = R$1.00. Total reserved from cash = R$51.00. If the matcher leaves shares unfilled, the unused fee returns proportionally.
Fees on resolution
When a market resolves, payouts are 100¢ × shares for the winning side and 0¢ for the losing side. No additional fee at resolution. Fees on void/refund follow the same logic — see the Fees article on void for details.