Highest ROI trades on Polymarket
The biggest return-on-cost trades that hit — someone took a long-shot position and it paid. Ranked by ROI (profit ÷ cost), from every resolved position on-chain. Click any trader to explore their full history.
Top trade
d…p turned $507.50 into $10.6K
19.8× ROI
| # | Trader | Market | Entry | Cost | Profit | ROI | |
|---|---|---|---|---|---|---|---|
| 1 | d…p | Will Abelardo de la Espriella win the 1st round of the 2026 Colombian presidential election? | 4.8¢ | $507.50 | +$10.0K | 19.8× | Jun 8, 2026 |
| 2 | Lo…no | Will Abelardo de la Espriella win the 1st round of the 2026 Colombian presidential election? | 12.1¢ | $1.4K | +$10.4K | 7.3× | Jun 8, 2026 |
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ROI = realized profit ÷ cost basis on a single resolved position. Past performance does not predict future results. Not financial advice.