Series ranked by USD turnover over the last 30 captured days, computed from every trade print in our own tick-data archive — not from venue-reported volume. Use it to pick the series worth buying first; each row links to its day bundles.
By USD turnover over the window; trades counted per contract of the series.
| # | Series | Venue | Trades (30d) | Turnover (30d) | Days | |
|---|---|---|---|---|---|---|
| 1 | BTC Up/Down 15m | Kalshi | 46,206,406 | $1.8B | 28 | Buy days |
| 2 | Professional Baseball Game | Kalshi | 7,590,860 | $716.1M | 28 | Buy days |
| 3 | ATP Tennis Match | Kalshi | 5,417,138 | $655.2M | 28 | Buy days |
| 4 | Challenger ATP | Kalshi | 5,549,790 | $439.9M | 28 | Buy days |
| 5 | Bitcoin price Above/below | Kalshi | 8,928,582 | $433.5M | 28 | Buy days |
| 6 | WTA Tennis Match | Kalshi | 3,645,674 | $433.1M | 28 | Buy days |
| 7 | ITF Men's Match | Kalshi | 6,949,799 | $400.3M | 28 | Buy days |
| 8 | ITF Women's Match | Kalshi | 5,304,319 | $311.7M | 28 | Buy days |
| 9 | Pro Baseball Total Points | Kalshi | 3,125,472 | $238.3M | 28 | Buy days |
| 10 | League of Legends esports | Polymarket | 1,422,062 | $238.2M | 30 | Buy days |
Trades and USD turnover summed over every contract of the series, from the recorded tick data; 30 days to 2026-09-02. Series without statistics in the window are omitted.
Trades and USD turnover summed over every contract of the series, from the recorded tick data; 30 days to 2026-09-02. Series without statistics in the window are omitted.
Trades and USD turnover summed over every contract of the series, from the recorded tick data; 30 days to 2026-09-02. Series without statistics in the window are omitted.
Live contracts with the largest absolute price change over the last 24 hours — a snapshot from the free analytics, refreshed every few minutes.
Live contracts ranked by absolute 24-hour price change (contracts quote 0..1; settled or near-settled contracts excluded). Snapshot 2026-09-03 13:24 UTC. Full list in the prediction movers.
Ranked here by USD turnover over the 30 days to 2026-09-02, per venue: on Kalshi the 15-minute BTC Up/Down series and the big sports match series (MLB games, ATP/ITF tennis) dominate; on Polymarket the 5-minute BTC Up/Down family and esports/tennis lead. The table updates daily from our own capture.
From the recorded tick data: every trade print of every contract of a series on a UTC day, turnover as price × size in USD (contracts quote 0..1). Series without statistics in the window are omitted, never shown as zero. Statistics exist from July 2026 onward.
Live contracts whose price moved the most over the last 24 hours, from the free analytics — settled or near-settled contracts (price ≤0.03 or ≥0.97) are excluded so resolution jumps do not dominate. It refreshes every few minutes and is not part of the archive itself.
Yes — every row links to the series page; day bundles (all contracts of the series for one UTC day, tick-level trades and order books) are bought in the shop from €1.