Explore Prediction Markets

The only search engine that aggregates Kalshi and Polymarket. Compare live odds on any topic.

Trending Prediction Markets

Live odds from Kalshi and Polymarket across the most-traded topics right now.

The Prediction Market Search Engine

Oddpool lets you search prediction markets across Kalshi and Polymarket in a single query. Type any topic (a presidential candidate, a Fed rate decision, a crypto price target) and get back every active contract from both venues, ranked by trading volume.

Right now, Kalshi and Polymarket have separate search engines, separate pricing, and separate orderbooks. If you want to compare prediction market odds on the same event, you have to open two tabs and cross-reference manually. Oddpool runs both searches at once and puts the results side by side.

Compare Kalshi and Polymarket Odds

The same event regularly trades at different prices on each venue. A "Bitcoin above $120K" contract might sit at 42¢ on Kalshi and 37¢ on Polymarket. That 5¢ gap means traders on the two platforms disagree, and it could be an arbitrage opportunity.

Every search result on Oddpool shows both Kalshi and Polymarket odds for each matching market. You see the venue, live probabilities, top outcomes, and volume on each card. Click through for historical charts, orderbook depth, and whale trade activity.

What You Can Explore

Prediction markets cover more than you'd expect. Beyond elections and crypto, you can search contracts on Federal Reserve rate decisions, NBA championships, Academy Awards, inflation data, recession probabilities, and dozens more. Every search pulls live data, so prices update as trades happen on each exchange.

Built for Traders and Researchers

If you trade prediction markets, Oddpool saves you the work of checking two platforms every time you want the best price. If you follow markets for research or reporting, it gives you a single place to answer "what does the crowd think about X?" with data from real money on the line, not polls.

Frequently Asked Questions

What is a prediction market?

A prediction market is an exchange where you buy and sell contracts on real-world outcomes. Each contract trades between $0 and $1, and the price reflects the crowd's implied probability. A contract at $0.70 means traders put a 70% chance on that outcome. The two largest platforms are Kalshi (CFTC-regulated, USD-settled) and Polymarket (crypto-native, USDC on Polygon).

Why compare Kalshi and Polymarket odds?

Kalshi's US-regulated exchange tends to attract institutional traders, while Polymarket's crypto-native platform draws a global audience. When the same event is priced differently on each, that gap can signal real disagreement between trader bases or a potential arbitrage opportunity.

How does Oddpool search prediction markets?

Oddpool queries the Kalshi and Polymarket APIs at the same time, normalizes the results into a single format, and ranks them by trading volume. Each result shows the venue, live odds, top outcomes, and volume. Click through for historical charts, orderbook depth, and whale trade alerts.

What is prediction market arbitrage?

When the same event trades at different prices on Kalshi and Polymarket, you can buy the cheaper side on one platform and sell the expensive side on the other to lock in profit no matter what happens. Oddpool's arbitrage scanner finds these gaps automatically and calculates the after-fee return.

Is Oddpool free?

The prediction market search engine is completely free. Search any topic, compare Kalshi and Polymarket odds, and browse trending markets with no account required. Advanced tools like the arbitrage scanner, whale tracker, and detailed dashboards are available with an Oddpool account.