Tick-by-tick trades and order-book depth for every Kalshi “Massachusetts Primary Winners” contract — 107 trading days as downloadable day bundles, €1 per day.
Per-day trade and turnover statistics exist from July 2026 onward; older days are archived without them.
A series-day bundle contains every Massachusetts Primary Winners contract that traded on Kalshi on that UTC day — 16 contract files on the latest covered day. Each file carries the full raw feed: every trade print with price, size and side, plus Level-2 order-book updates, in the same zstd-compressed schema as our crypto venues. Event contracts quote 0..1; turnover is USD-normalized.
Coverage runs May 2026 – September 2026 — 107 trading days, 65.2 MB compressed in total. A day typically holds 16 contract files (up to 16 on the busiest day, 9.86 MB). Pick individual days in the shop calendar for €1 each; delivery is an instant per-file download or one archive for the whole day.
Files, size and — where our daily statistics exist — trades and USD turnover per UTC day. “—” means the day predates the statistics capture, not zero activity.
The 16 largest Massachusetts Primary Winners contract files recorded on 2026-09-02 with that day’s trades, USD turnover and last price per contract— every contract of the series is inside that day's bundle; single contracts can also be bought as individual day files.
| Contract | File | Trades | Turnover | Close | |
|---|---|---|---|---|---|
| KXMAPRIMARY-01D26-JWHA | 2.75 MB | 920 | $7.1K | 0.010 | buy file → |
| KXMAPRIMARY-01D26-RNEA | 1.32 MB | 675 | $49.9K | 0.990 | buy file → |
| KXMAPRIMARY-08D26-SLYN | 1.03 MB | 1,114 | $156.5K | 0.990 | buy file → |
| KXMAPRIMARY-08D26-PROA | 899 KB | 1,331 | $11.5K | 0.010 | buy file → |
| KXMAPRIMARY-09D26-BKEA | 25.3 KB | 5 | $320.89 | 0.990 | buy file → |
| KXMAPRIMARY-09D26-CSWA | 14.4 KB | 4 | $11.08 | 0.010 | buy file → |
| KXMAPRIMARY-01D26-ACEL |
Tick-by-tick trades and Level-2 order-book depth for every contract of the Massachusetts Primary Winners series on Kalshi (16 contract files on the latest day). One bundle = one UTC day of the whole series.
KXMAPRIMARY — every contract of the series carries this prefix in its ticker (followed by the event date and strike). Files in a day bundle are named by the full contract ticker, so a bundle holds every KXMAPRIMARY-* contract that traded that UTC day.
Coverage runs May 2026 – September 2026 — 107 trading days in total.
One zstd-compressed text file per contract per UTC day, in the same normalized schema as our crypto venues — see the market-data specification; free samples on the downloads page.
Yes — trades export as gzipped CSV or Parquet at no extra cost, with integer microsecond UTC timestamps that load straight into pandas, polars or DuckDB. Kalshi records full order-book depth without a separate BBO stream, so book data ships in the native tick file — the free reader script converts it locally. See the formats overview.
€1 per series-day bundle — every contract of the series for that day, with invoice on checkout. Buy it in the Data Shop.
| $8.1K |
| Buy day → |
| 2026-08-26 | 16 | 2.08 MB | 411 | $22.4K | Buy day → |
| 2026-08-25 | 16 | 1.31 MB | 207 | $6.0K | Buy day → |
| 2026-08-24 | 16 | 3.44 MB | 226 | $6.2K | Buy day → |
| 2026-08-23 | 16 | 2.27 MB | 171 | $8.5K | Buy day → |
| 2026-08-22 | 16 | 1.64 MB | 164 | $5.2K | Buy day → |
| 2026-08-21 | 16 | 1.33 MB | — | — | Buy day → |
| 2026-08-20 | 16 | 3.48 MB | 77 | $3.1K | Buy day → |
| 9.53 KB |
| 15 |
| $28.94 |
| 0.010 |
| buy file → |
| KXMAPRIMARY-01D26-NTRA | 4.37 KB | 2 | $1.11 | 0.010 | buy file → |
| KXMAPRIMARY-04D26-JPOU | 4.34 KB | 2 | $3.75 | 0.020 | buy file → |
| KXMAPRIMARY-01D26-JDEW | 3.95 KB | 1 | $9.36 | 0.010 | buy file → |
| KXMAPRIMARY-04D26-JAUC | 2.96 KB | 1 | $50.44 | 0.990 | buy file → |
| KXMAPRIMARY-03D26-GCLA | 1.86 KB | 0 | $0 | 0.010 | buy file → |
| KXMAPRIMARY-03D26-LTRA | 1.83 KB | 0 | $0 | 0.990 | buy file → |
| KXMAPRIMARY-06R26-MJON | 1.43 KB | 0 | $0 | — | buy file → |
| KXMAPRIMARY-04D26-CBOY | 1.39 KB | 0 | $0 | — | buy file → |
| KXMAPRIMARY-06R26-JFIE | 1.21 KB | 0 | $0 | 0.010 | buy file → |