Prediction Market Data by Category
2,577 series across 7 categories on Kalshi, Polymarket, predict.fun and OG.com. Each category hub lists every live series with coverage, archive size and 30-day activity (to 2026-11-01); the topic hubs underneath slice it by league, asset or release.
Categories
Crypto topics
Sports topics
Economics topics
Climate topics
Science topics
Prediction-market categories — FAQ
How much prediction-market activity do these categories cover?
2,577 Kalshi, Polymarket, predict.fun and OG.com series across 7 categories, with 420,197,056 trades and $16.1B of USD turnover in the 30 days to 2026-11-01 — Sports leads at $9.5B. Every number is summed from the trade prints of every contract in our own tick capture.
How is a category hub built?
From the static series registry intersected with the live archive: only series with recorded days are listed, and each hub shows its series per venue, 30-day trades and turnover, month-by-month development, the biggest contracts of the newest day and an FAQ. Day bundles are bought in the shop from €1.