Highest ROI trades on Polymarket
The biggest return-multiple trades that hit — someone took a long-shot position and it paid. Ranked by ROI (realized profit ÷ gross traded notional), from every resolved position on-chain. Click any trader to explore their full history.
Top trade
ko…da made $11.8K on $732.00 of gross traded notional
16.1× ROI
| # | Trader | Market | Entry | Notional | Profit | ROI | |
|---|---|---|---|---|---|---|---|
| 1 | ko…da | US ceasefire against Iran continues through August 31? | 5.9¢ | $732.00 | +$11.8K | 16.1× | Aug 30, 2026 |
| 2 | Ra…ol | Will the AfD win the 2026 Sachsen-Anhalt parliamentary election by at least 25%? | 10.0¢ | $5.0K | +$45.0K | 9.0× | Sep 7, 2026 |
| 3 | as…88 | US ceasefire against Iran continues through September 15? | 11.0¢ | $660.00 | +$5.3K | 8.1× | Aug 30, 2026 |
| 4 | Ga…ma | Will Angie Nixon be the Democratic nominee for Senate in Florida? | 11.0¢ | $1.3K | +$10.9K | 8.1× | Aug 28, 2026 |
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ROI = realized profit ÷ gross traded notional on a single resolved position — the denominator is the Notional column (buy cost basis plus sell proceeds), not the cost basis. Profit is gross of fees. Past performance does not predict future results. Not financial advice.