A six-signal quantitative screener that ranks every active Polymarket prediction market by edge. See where the spreads are wide, the prices are stale, and the books are moving — in seconds.
| # | Market | Edge ↓ | Yes ¢ | Spread $ | Liquidity | 24h Vol | Days |
|---|---|---|---|---|---|---|---|
| 1 | Fed cuts rates at the July 2026 FOMC meeting? | 73.6 | 57.5¢ | $0.052 | $186.4K | $72.3K | 34.0d |
| 2 | Bitcoin above $150K before 2027? | 61.2 | 31.4¢ | $0.064 | $124.8K | $58.1K | 189.0d |
| 3 | US recession declared in 2026 (NBER)? | 47.3 | 19.7¢ | $0.041 | $63.5K | $9.8K | 189.0d |
| 4 | OpenAI releases GPT-6 in 2026? | 36.8 | 38.2¢ | $0.029 | $221.6K | $40.7K | 189.0d |
| 5 | Yankees win the 2026 World Series? | 22.9 | 11.6¢ | $0.007 | $81.3K | $6.2K | 128.0d |
Our server pulls up to 200 active Polymarket markets every 30 seconds. No data touches your browser directly — all upstream calls are proxied server-side to avoid blocking.
Each market is scored across six quantitative dimensions and combined into a weighted composite (0–100). You control the weights live via sliders.
Markets rank highest when spreads are wide, prices are stale, books are active, and resolution is near. Click any row to expand the full signal breakdown.
Each signal is normalized 0–100. Default weights give more importance to spread and staleness — the most direct indicators of maker opportunity. Adjust any weight live to suit your strategy.
Bid-ask width relative to a ~10¢ maximum. Wide spreads mean maker opportunity — you can potentially earn the spread by providing liquidity on both sides.
When the last traded price diverges from the current midpoint, the market may be mispriced or slow to update. That gap is your signal.
Log-scaled book depth compared to the deepest market in the sample. More liquidity = easier to size into and exit a position.
24-hour volume as a fraction of total lifetime volume. High recent activity relative to history means the market has live attention right now.
Distance to resolution date. Markets resolving soon have compressed time value — edge is crystallising. Scored over a ~90-day window.
Distance from a 50/50 price. Deliberately down-weighted: near-decided markets (deep underdogs and heavy favourites) rarely offer real tradeable edge, so this only acts as a light tie-breaker.
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Absolutely not. The scores are heuristic signals — they tell you where to look, not what to do. Markets can be wide or extreme for entirely legitimate reasons (genuine uncertainty, thinly-traded events, imminent resolution). Do your own research before trading.
Polymarket's public Gamma API (market metadata, prices, volumes) and CLOB API (live bid-ask spreads for the top 25 markets). No third-party data providers. No unofficial scrapers.
Polymarket shows individual markets one at a time. This screener ranks all active markets simultaneously across quantitative signals, so you can see the whole landscape in seconds instead of clicking through hundreds of pages.
Each of the six signals has a weight from 0 to 1. Set spread weight to 0 and you won't penalise tight-spread markets. Crank timeval to 1 and only near-resolution markets bubble up. The re-score is instant — no round-trip to the server.
Seven days from the moment you subscribe. You won't be charged until the trial ends. Cancel any time from your account page — no questions, no retention flows.