Tick-by-tick trades and order-book depth for every Kalshi “Companies added to SP500 ” contract — 183 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 Companies added to SP500 contract that traded on Kalshi on that UTC day — 21 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 March 2026 – September 2026 — 183 trading days, 32.3 MB compressed in total. A day typically holds 13 contract files (up to 22 on the busiest day, 2.54 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 21 largest Companies added to SP500 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 | |
|---|---|---|---|---|---|
| KXSP500ADDQ-26SEP30-BE | 91.0 KB | 26 | $628.68 | 0.490 | buy file → |
| KXSP500ADDQ-26SEP30-SOFI | 11.0 KB | 19 | $196.33 | 0.180 | buy file → |
| KXSP500ADDQ-26SEP30-CBRS | 5.59 KB | 0 | $0 | — | buy file → |
| KXSP500ADDQ-26SEP30-PSTG | 2.97 KB | 1 | $0.42 | 0.140 | buy file → |
| KXSP500ADDQ-26SEP30-AFRM | 2.95 KB | 0 | $0 | 0.090 | buy file → |
| KXSP500ADDQ-26SEP30-ALNY | 2.80 KB | 0 | $0 | — | buy file → |
| KXSP500ADDQ-26SEP30-NET | 2.49 KB |
Tick-by-tick trades and Level-2 order-book depth for every contract of the Companies added to SP500 series on Kalshi (21 contract files on the latest day). One bundle = one UTC day of the whole series.
KXSP500ADDQ — 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 KXSP500ADDQ-* contract that traded that UTC day.
Coverage runs March 2026 – September 2026 — 183 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.
| $116.2 |
| Buy day → |
| 2026-08-26 | 21 | 62.1 KB | 12 | $104.12 | Buy day → |
| 2026-08-25 | 21 | 81.6 KB | 25 | $160.55 | Buy day → |
| 2026-08-24 | 21 | 130 KB | 15 | $204.46 | Buy day → |
| 2026-08-23 | 21 | 68.9 KB | 19 | $178.96 | Buy day → |
| 2026-08-22 | 21 | 101 KB | 1 | $3.89 | Buy day → |
| 2026-08-21 | 21 | 129 KB | — | — | Buy day → |
| 2026-08-20 | 21 | 115 KB | 14 | $49.08 | Buy day → |
| 0 |
| $0 |
| — |
| buy file → |
| KXSP500ADDQ-26SEP30-CW | 2.49 KB | 0 | $0 | — | buy file → |
| KXSP500ADDQ-26SEP30-CASY | 2.28 KB | 1 | $0.47 | 0.020 | buy file → |
| KXSP500ADDQ-26SEP30-SPCX | 2.24 KB | 0 | $0 | 0.020 | buy file → |
| KXSP500ADDQ-26SEP30-CRCL | 2.13 KB | 0 | $0 | — | buy file → |
| KXSP500ADDQ-26SEP30-DUOL | 2.02 KB | 0 | $0 | — | buy file → |
| KXSP500ADDQ-26SEP30-BWXT | 1.99 KB | 0 | $0 | — | buy file → |
| KXSP500ADDQ-26SEP30-VG | 1.96 KB | 0 | $0 | — | buy file → |
| KXSP500ADDQ-26SEP30-TLN | 1.96 KB | 0 | $0 | — | buy file → |
| KXSP500ADDQ-26SEP30-CRWV | 1.93 KB | 0 | $0 | — | buy file → |
| KXSP500ADDQ-26SEP30-SNOW | 1.91 KB | 0 | $0 | — | buy file → |
| KXSP500ADDQ-26SEP30-MSTR | 1.81 KB | 0 | $0 | — | buy file → |
| KXSP500ADDQ-26SEP30-GWRE | 1.77 KB | 0 | $0 | — | buy file → |
| KXSP500ADDQ-26SEP30-RBLX | 1.71 KB | 0 | $0 | — | buy file → |
| KXSP500ADDQ-26SEP30-TOST | 1.70 KB | 0 | $0 | — | buy file → |