Live feed coming soon
The live in-play arbitrage feed isn't built yet. Fast-moving, in-play arbs will show up here once it's live. For now, everything is on the main grid.
Ready to scan
Hit Scan Now to pull live markets from Polymarket and Kalshi.
Both platforms pay APY on positions while you wait for resolution:
Find arbitrage opportunities between cross-platform events
The live in-play arbitrage feed isn't built yet. Fast-moving, in-play arbs will show up here once it's live. For now, everything is on the main grid.
Hit Scan Now to pull live markets from Polymarket and Kalshi.
These pairs scored under 50% on our title-similarity check. They might be the same event, but they might not. Three risks before you bet:
If you do bet, treat any % match below 50% as a coin flip on the event identity.
You're about to look at pairs we already told you were probably bunk. These failed at least one of our harder guards:
99% of this is noise. 1% might be a 💎 — a real arb hiding because both platforms wrote the event differently. If you're going to bet anything here, click through both event pages first. Seriously.
This calculator assumes your full order can fill at the displayed price. In reality, the platforms' orderbooks may have fewer contracts available at this price — your actual blended fill price could be higher.
Click the 📊 button on the card to see real orderbook depth, and use the "suggested trade size" tool there to find how many contracts you can buy at your target profit %.
This pill tells you how recently the data was scanned. The site auto-refreshes every minute in the background and you read the latest cached scan -- you don't trigger a new scan every time you click Scan Now.
If you need data right now (instead of waiting for the next background refresh), use the force refresh below. Rate-limited to once every 30 seconds so we don't hammer the prediction-market APIs.
The % match score tells you how similar the titles of the two markets are. A higher % means we're more confident the two markets are about the same event.