Simulate any trade before you place it: shares, max payout, profit after the real taker fee, and break-even. Free, no signup — then check it against the live market.
Fee uses Polymarket's official formula: shares × rate × price × (1 − price). Full breakdown on the fees guide.
Create a free account, browse the markets first, and only trade money you can afford to lose. New here? Read the step-by-step beginner guide first.
Sign Up on PolymarketShares pay $1 each if you're right. Payout = amount spent ÷ share price. Spend $50 at 62¢ and you get about 80.6 shares — a max payout of $80.65 and $30.65 profit before fees.
Yes — this page is a full Polymarket simulator. Test prices and stakes here first, then compare with the live order book before committing anything.
Because of the price × (1 − price) term, the fee peaks at 50¢ and shrinks toward $0 near 1¢ and 99¢. Longshots and near-certainties are the cheapest trades on the platform; coin-flips cost the most.
The share price is the market's probability estimate. Buying at 30¢ means the crowd gives it a 30% chance — your job is deciding whether the real chance is higher.
Low-priced shares offer big multiples but lose often. High-priced shares win often but pay little. Neither is "better" — what matters is whether the price is wrong.
If you buy at 62¢, you must sell above 62¢ (after fees) to profit. Anything below is a loss — even if the event "almost" happened.
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