Tick-by-tick trades and order-book depth for every Kalshi “Big Brother Rank” contract — 57 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 Big Brother Rank contract that traded on Kalshi on that UTC day — 34 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 July 2026 – September 2026 — 57 trading days, 125 MB compressed in total. A day typically holds 34 contract files (up to 34 on the busiest day, 11.1 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 24 largest Big Brother Rank 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 | |
|---|---|---|---|---|---|
| KXBIGBROTHERRANK-26DEC31R3-YAS | 268 KB | 24 | $77.35 | 0.150 | buy file → |
| KXBIGBROTHERRANK-26DEC31R2-ANG | 159 KB | 21 | $40.13 | 0.170 | buy file → |
| KXBIGBROTHERRANK-26DEC31R2-LAT | 88.7 KB | 4 | $4.38 | 0.100 | buy file → |
| KXBIGBROTHERRANK-26DEC31R3-DEE | 74.7 KB | 7 | $5.38 | 0.110 | buy file → |
| KXBIGBROTHERRANK-26DEC31R2-YAS | 57.0 KB | 17 | $50.27 | 0.110 | buy file → |
| KXBIGBROTHERRANK-26DEC31R3-RIC | 50.4 KB | 25 | $23.55 | 0.090 | buy file → |
| KXBIGBROTHERRANK-26DEC31R2-MEL |
Tick-by-tick trades and Level-2 order-book depth for every contract of the Big Brother Rank series on Kalshi (34 contract files on the latest day). One bundle = one UTC day of the whole series.
KXBIGBROTHERRANK — 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 KXBIGBROTHERRANK-* contract that traded that UTC day.
Coverage runs July 2026 – September 2026 — 57 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.
| 177 |
| $579.43 |
| Buy day → |
| 2026-08-26 | 34 | 1.16 MB | 96 | $369.01 | Buy day → |
| 2026-08-25 | 34 | 1.78 MB | 144 | $252.18 | Buy day → |
| 2026-08-24 | 34 | 1.60 MB | 185 | $475.96 | Buy day → |
| 2026-08-23 | 34 | 248 KB | 64 | $155.24 | Buy day → |
| 2026-08-22 | 34 | 428 KB | 82 | $240.83 | Buy day → |
| 2026-08-21 | 34 | 1017 KB | — | — | Buy day → |
| 2026-08-20 | 34 | 372 KB | 114 | $240.06 | Buy day → |
| 48.9 KB |
| 19 |
| $40.11 |
| 0.080 |
| buy file → |
| KXBIGBROTHERRANK-26DEC31R3-DRE | 42.0 KB | 8 | $3.13 | 0.070 | buy file → |
| KXBIGBROTHERRANK-26DEC31R2-BAR | 40.4 KB | 11 | $19.03 | 0.190 | buy file → |
| KXBIGBROTHERRANK-26DEC31R3-TAY | 37.9 KB | 7 | $11.81 | 0.090 | buy file → |
| KXBIGBROTHERRANK-26DEC31R3-MEL | 33.2 KB | 11 | $36.94 | 0.120 | buy file → |
| KXBIGBROTHERRANK-26DEC31R3-BAR | 32.7 KB | 13 | $23.95 | 0.080 | buy file → |
| KXBIGBROTHERRANK-26DEC31R3-ANG | 32.2 KB | 9 | $39.59 | 0.120 | buy file → |
| KXBIGBROTHERRANK-26DEC31R2-DEE | 29.8 KB | 4 | $3.39 | 0.130 | buy file → |
| KXBIGBROTHERRANK-26DEC31R2-RIC | 28.6 KB | 12 | $45.55 | 0.100 | buy file → |
| KXBIGBROTHERRANK-26DEC31R3-LAT | 28.4 KB | 16 | $27.18 | 0.090 | buy file → |
| KXBIGBROTHERRANK-26DEC31R2-DRE | 21.9 KB | 8 | $16.94 | 0.060 | buy file → |
| KXBIGBROTHERRANK-26DEC31R2-TAY | 19.7 KB | 5 | $2.87 | 0.060 | buy file → |
| KXBIGBROTHERRANK-26DEC31R2-HAL | 12.3 KB | 0 | $0 | 0.010 | buy file → |
| KXBIGBROTHERRANK-26DEC31R3-KAM | 10.2 KB | 0 | $0 | — | buy file → |
| KXBIGBROTHERRANK-26DEC31R2-LYR | 8.58 KB | 0 | $0 | — | buy file → |
| KXBIGBROTHERRANK-26DEC31R2-MAL | 8.51 KB | 0 | $0 | — | buy file → |
| KXBIGBROTHERRANK-26DEC31R2-JAS | 8.44 KB | 0 | $0 | — | buy file → |
| KXBIGBROTHERRANK-26DEC31R2-CHU | 8.37 KB | 0 | $0 | — | buy file → |