Tools · Backtest
What if you had copied them?
Put a fixed stake on every graded flag a wallet made, at the price it paid, and see the hypothetical result. This looks backward only, and it is not a prediction or a recommendation.
Hypothetical P&L
−$280
Return on staked
-46.7%
Bets
3/6 won
Edge vs price
-16.1 pts ±12.0
Cumulative hypothetical P&L, $100 per bet
Aug 06, 18:43 EDTAug 12, 17:51 EDT
Most recent bets in the test
| Market | Entry | Result | Placed |
|---|---|---|---|
| Will Kai and Speed beat the Minecraft challenge by August 17? | 96¢ | called | 72d ago |
| Russia x Ukraine ceasefire by May 31, 2026? | 87¢ | missed | 169d ago |
| US x Iran meeting by February 6, 2026? | 91¢ | called | 259d ago |
| Russia x Ukraine ceasefire by January 31, 2026? | 95¢ | called | 294d ago |
| Xi Jinping out in 2025? | 8¢ | missed | 371d ago |
| Will Zohran Mamdani win the 2025 NYC mayoral election? | 20¢ | missed | 443d ago |
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Why this overstates what you'd get
- You'd be late. Flags show up after the trade, often after the price has moved. Use "Copy delay" to price each bet 1 to 24 hours later from market history, or add an extra cost per fill.
- Picked after the fact. Wallets that look good here were chosen because they did well. Tick the out-of-sample box to test only bets made after the cutoff.
- Small samples are noisy. Look at the ± standard error. A few lucky long shots can make the P&L.
- Fees: many Polymarket markets charge no trading fee. Some charge a taker fee of rate × min(price, 1−price) per share. Set "fee rate" to model it.
- Ignores spreads, liquidity, partial fills, and sells before resolution. It counts only graded flags (placed ≥1h before close, 3¢–97¢).
Hypothetical results from public data. Not financial advice.