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
hu…n1 turned $2.4K into $19.9K
7.3× ROI
| # | Trader | Market | Entry | Cost | Profit | ROI | |
|---|---|---|---|---|---|---|---|
| 1 | hu…n1 | Bitcoin Up or Down - August 2, 1:40PM-1:45PM ET | 12.0¢ | $2.4K | +$17.5K | 7.3× | Aug 2, 2026 |
| 2 | ha…la | Bitcoin Up or Down - August 6, 10:10AM-10:15AM ET | 11.3¢ | $764.09 | +$6.0K | 7.8× | Aug 6, 2026 |
| 3 | ha…la | Bitcoin Up or Down - August 5, 6:20PM-6:25PM ET | 10.8¢ | $539.90 | +$4.5K | 8.3× | Aug 5, 2026 |
| 4 | Ia…pt | Bitcoin Up or Down - August 3, 3:10AM-3:15AM ET | 10.8¢ | $5.0K | +$41.6K | 8.3× | Aug 3, 2026 |
| 5 | WI…ER | Bitcoin Up or Down - August 3, 3:10AM-3:15AM ET | 8.8¢ | $625.00 | +$6.5K | 10.3× | Aug 3, 2026 |
| 6 | ha…la | Bitcoin Up or Down - August 3, 9:20PM-9:25PM ET | 8.0¢ | $608.44 | +$7.0K | 11.5× | Aug 4, 2026 |
| 7 | we…fd | Bitcoin Up or Down - August 7, 2:50AM-2:55AM ET | 8.0¢ | $1.6K | +$18.3K | 11.6× | Aug 7, 2026 |
| 8 | fe…ff | Bitcoin Up or Down - August 3, 9:20PM-9:25PM ET | 7.9¢ | $558.80 | +$6.5K | 11.7× | Aug 4, 2026 |
| 9 | 0x…f7 | Bitcoin Up or Down - August 2, 10:50AM-10:55AM ET | 6.5¢ | $585.00 | +$8.4K | 14.4× | Aug 2, 2026 |
Find traders with real, repeatable skill
One huge ROI can be luck. Polyrank ranks the 2.9M-wallet field by calibration, edge, and risk — so you can follow the genuinely skilled, not the lucky.
ROI = realized profit ÷ cost basis on a single resolved position. Past performance does not predict future results. Not financial advice.