Tick-by-tick trades, Level-2 order-book depth and 1-minute OHLCV for 114,445 Kalshi instruments — prediction markets — captured co-located and normalized into one schema. Download any instrument-day, or explore it live in the analytics.
Every Kalshi print — price, size, side and exchange timestamp — at full resolution, not sampled.
Top-of-book and aggregated Level-2 depth, so you can reconstruct Kalshi liquidity and slippage.
Open/high/low/close, volume and VWAP per minute — ready for backtests and Kalshi signal research.
Bid-ask spreads in bps and ticks, normalized into one schema across every venue for apples-to-apples Kalshi comparison.
Ranked by archive size. Open any instrument for live analytics, or download its full history.
| Instrument | Type | Coverage | Size | |
|---|---|---|---|---|
| KXMLB-26-NYY | Predictions | March 2026 – September 2026 | 598 MB | Download |
| KXMLB-26-MIL | Predictions | March 2026 – September 2026 | 336 MB | Download |
| KXMLB-26-LAD | Predictions | March 2026 – September 2026 | 302 MB | Download |
| KXMLB-26-ATL | Predictions | March 2026 – September 2026 | 294 MB | Download |
| KXWTI-26NOV03-T115.99 | Predictions | May 2026 – September 2026 | 289 MB | Download |
| KXWTI-26NOV03-T108.99 | Predictions | May 2026 – September 2026 | 287 MB | Download |
| KXMLB-26-PHI | Predictions | March 2026 – September 2026 | 280 MB | Download |
| KXMLB-26-SEA | Predictions | March 2026 – September 2026 | 251 MB | Download |
| KXECONPATH-26-OHEAT | Predictions | March 2026 – September 2026 | 240 MB | Download |
| KXBTCY-27JAN0100-B77500 | Predictions | February 2026 – September 2026 | 233 MB | Download |
| KXINXMAXY-01JAN2027-7999.99 | Predictions | March 2026 – September 2026 | 227 MB | Download |
| KXBTCPRICE-85000-26SEP11 | Predictions | August 2026 – September 2026 | 225 MB | Download |
Kalshi historical data spans February 2026 – September 2026 across prediction markets. The archive holds 114,445 instruments over 1 base assets, for 2.49 TB of recorded market data.
By USD turnover from our own daily statistics over every contract of the series; full ranking on the leaderboard.
| # | Series | Trades (30d) | Turnover (30d) | Days | |
|---|---|---|---|---|---|
| 1 | BTC Up/Down 15m | 51,224,054 | $2.0B | 30 | Buy days |
| 2 | ATP Tennis Match | 6,231,520 | $768.4M | 30 | Buy days |
| 3 | Professional Baseball Game | 8,006,267 | $751.0M | 30 | Buy days |
| 4 | Challenger ATP | 6,224,840 | $480.2M | 30 | Buy days |
| 5 | Bitcoin price Above/below | 9,840,208 | $476.3M | 30 | Buy days |
| 6 | WTA Tennis Match | 3,970,742 | $475.0M | 30 | Buy days |
| 7 | ITF Men's Match | 7,442,440 | $422.2M | 30 | Buy days |
| 8 | ITF Women's Match | 5,612,857 | $326.6M | 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.
One bundle = every contract of a series for one UTC day. Browse all series on the prediction-market data hub.
Tick-by-tick trades, Level-2 order-book depth, 1-minute OHLCV/VWAP and bid-ask spreads for 114,445 Kalshi instruments across prediction markets. Each file is one instrument for one UTC day.
Kalshi coverage runs February 2026 – September 2026. Availability varies per instrument — check the per-instrument calendar on the analyze page.
Yes — every file carries top-of-book and aggregated Level-2 depth alongside the raw trade stream, normalized into the same schema across all venues.
One zstd-compressed text file per instrument per UTC day, in the schema documented in the market-data specification. Grab free samples on the downloads page.
Yes — every free sample and every purchased tick day also exports as gzipped CSV or Parquet at no extra cost: trades in both formats. Kalshi records full order-book depth without a separate BBO stream — the free reader script converts depth locally. Timestamps are integer microseconds UTC and the columns load straight into pandas, polars or DuckDB — see the formats overview.
Files are priced per instrument-day with invoice on checkout — see pricing. Free full-day samples are available on the downloads page.