Tick-by-tick trades, Level-2 order-book depth and 1-minute OHLCV for 75,523 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 – August 2026 | 565 MB | Download |
| KXMLB-26-MIL | Predictions | March 2026 – August 2026 | 290 MB | Download |
| KXWTI-26NOV03-T115.99 | Predictions | May 2026 – August 2026 | 286 MB | Download |
| KXWTI-26NOV03-T108.99 | Predictions | May 2026 – August 2026 | 272 MB | Download |
| KXMLB-26-ATL | Predictions | March 2026 – August 2026 | 269 MB | Download |
| KXMLB-26-LAD | Predictions | March 2026 – August 2026 | 246 MB | Download |
| KXMLB-26-PHI | Predictions | March 2026 – August 2026 | 246 MB | Download |
| KXMLB-26-SEA | Predictions | March 2026 – August 2026 | 232 MB | Download |
| KXWTI-26NOV03-T114.99 | Predictions | May 2026 – August 2026 | 211 MB | Download |
| KXWTI-26NOV03-T111.99 | Predictions | May 2026 – August 2026 | 202 MB | Download |
| KXBTCY-27JAN0100-B77500 | Predictions | February 2026 – August 2026 | 201 MB | Download |
| KXINXMAXY-01JAN2027-7799.99 | Predictions | March 2026 – August 2026 | 199 MB | Download |
Kalshi historical data spans February 2026 – August 2026 across prediction markets. The archive holds 75,523 instruments over 1 base assets, for 1.75 TB of recorded market data.
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 75,523 Kalshi instruments across prediction markets. Each file is one instrument for one UTC day.
Kalshi coverage runs February 2026 – August 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.