Think OddsJam, but for prediction markets.
Prediction market intelligence,
found for you.
CrossOdds scans Kalshi and Polymarket for arbitrage, whale signals, and weather forecast edges so you always have an edge.
Free daily picks
Today's Daily Freebies
3 hand-picked arbitrage opportunities + 2 whale trade alerts, refreshed daily. Sign up to unlock the full dashboard.
Trusted by traders
Real results from real users.
I've been averaging about 20% monthly returns just by following the opportunities CrossOdds surfaces. Some months I've put up to 40% of my bankroll into the highest-confidence plays. It's been incredibly consistent.
Sterling
Honestly the best tool I've come across in the prediction market space. The matching is insanely accurate and the spreads are real. I've been pulling in about 15% a month and barely have to think about it. CrossOdds does all the heavy lifting.
Daniel
How it works
CrossOdds finds three types of edges in prediction markets. Click to learn more.
"Will the US enter a recession in 2026?"
Buy
Buy
Total cost per pair
93¢
Payout (always)
$1.00
When two platforms price the same event differently, you can buy Yes on one and No on the other for less than $1 combined. One side always pays $1. The difference is yours.
We scan markets
Continuously polls Kalshi and Polymarket for every active Yes/No market.
We match questions
Embedding models semantically match the same question across platforms.
You lock in profit
When Yes + No costs less than $1 across platforms, the spread is yours.
The full intelligence suite for prediction markets.
Arbitrage opportunities, whale trade signals, and weather edges, updated in real time. Free to start, no credit card required.