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
Ha…23 made $15.9K on $594.00 of gross traded notional
26.8× ROI
| # | Trader | Market | Entry | Notional | Profit | ROI | |
|---|---|---|---|---|---|---|---|
| 1 | Ha…23 | Will the highest temperature in Sao Paulo be 24°C or higher on March 13? | 3.6¢ | $594.00 | +$15.9K | 26.8× | Mar 14, 2026 |
| 2 | 0x…75 | Will the highest temperature in New York City be between 56-57°F on March 12? | 4.5¢ | $720.00 | +$15.3K | 21.2× | Mar 13, 2026 |
| 3 | so…35 | Will there be exactly 0 earthquakes of magnitude 6.5 or higher worldwide by February 22? | 4.5¢ | $880.74 | +$18.6K | 21.1× | Feb 23, 2026 |
| 4 | yo…45 | Will there be exactly 0 earthquakes of magnitude 6.5 or higher worldwide by February 22? | 5.5¢ | $1.2K | +$19.8K | 17.2× | Feb 23, 2026 |
| 5 | ne…23 | Confirmed case of Hantavirus in US by May 15? | 6.4¢ | $855.38 | +$9.2K | 10.7× | May 16, 2026 |
| 6 | j…i | Will the highest temperature in Munich be 24°C on August 6? | 0.82¢ | $610.22 | +$4.9K | 8.0× | Aug 6, 2026 |
| 7 | Be…er | Will the highest temperature in Seattle be between 52-53°F on March 4? | 11.6¢ | $536.40 | +$4.1K | 7.6× | Mar 5, 2026 |
| 8 | co…44 | Will the highest temperature in Beijing be 20°C on April 5? | 12.0¢ | $1.4K | +$10.6K | 7.3× | Apr 5, 2026 |
Find traders with real, repeatable skill
One huge ROI can be luck. Polyrank ranks the 3.2M-wallet field by calibration, edge, and risk — so you can follow the genuinely skilled, not the lucky.
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.