Tick-by-tick trades and order-book depth for every Kalshi “March Madness 1 Seeds” contract — 147 trading days as downloadable day bundles, €1 per day.
Trades and USD turnover summed over every contract of the series across 30 captured days to 2026-09-09, from the recorded tick data — the per-day averages divide by the captured days. Buy share, quoted spread (in contract price cents, 0..1 = 100 ¢), best-bid/ask depth and Level-2 update counts are turnover-weighted over the same window.
A series-day bundle contains every March Madness 1 Seeds contract that traded on Kalshi on that UTC day — 71 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 — 147 trading days, 33.6 MB compressed in total. A day typically holds 66 contract files (up to 71 on the busiest day, 895 KB). 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, contracts traded, trades, USD turnover, buy share, quoted spread, top-of-book depth and order-book updates per UTC day, from the recorded tick data.
The ten contracts with the most USD turnover per UTC day — open, high, low, close, VWAP and the outcome implied by the last print; the six previous days fold out below.
The 1 most traded March Madness 1 Seeds contracts on 2026-09-06 — 0 closed Yes (≥ 0.97), 0 closed No (≤ 0.03), 1 still open at the last print: 1 trades, $0.38 USD turnover. The busiest contract was KXMARMAD1SEED-27-CONN with $0.38 turnover.
| Contract | Open | High | Low | Close | VWAP | Implied outcome | Trades | Turnover | Buy share | |
|---|---|---|---|---|---|---|---|---|---|---|
| KXMARMAD1SEED-27-CONN | 0.380 | 0.380 | 0.380 | 0.380 | 0.380 | open | 1 | $0.38 | 100 % | buy file → |
Prices quote 0..1 (probability of Yes). Open/high/low/close/VWAP are that UTC day’s trade prints per contract; the implied outcome reads the last print — ≥ 0.97 as Yes, ≤ 0.03 as No, anything between as still open — venues publish the official result. Buy share = taker-buy side of turnover.
The 1 most traded March Madness 1 Seeds contracts on 2026-09-04 — 0 closed Yes (≥ 0.97), 0 closed No (≤ 0.03), 1 still open at the last print: 1 trades, $5.5 USD turnover. The busiest contract was KXMARMAD1SEED-27-UVA with $5.5 turnover.
| Contract | Open | High | Low | Close | VWAP | Implied outcome | Trades | Turnover | Buy share | |
|---|---|---|---|---|---|---|---|---|---|---|
| KXMARMAD1SEED-27-UVA |
On Kalshi, a March Madness 1 Seeds contract trades until its event settles, is listed roughly 1.7 h before it opens, and quotes in 1 ¢ price steps (0..1). Measured on the 1 contracts captured on 2026-09-06.
The busiest contract of a settled day, byte-identical to the files in the paid bundle — download the native tick file, a CSV/Parquet export, or replay its order book in the browser.
One-minute open/high/low/close, trades, USD turnover, quoted spread and top-of-book depth of the sample contract — the same 1-minute statistics every instrument’s analytics page offers.
KXMARMAD1SEED-27-WIS traded in 2 of the day’s minutes (12:40–13:04 UTC): 2 trades, $1.8 turnover, opening at 0.060, ranging 0.060–0.060 and closing at 0.060.
| Minute (UTC) | Open | High | Low | Close | Trades | Turnover | Spread | Top-1 bid / ask |
|---|---|---|---|---|---|---|---|---|
| 12:40 | 0.060 | 0.060 | 0.060 | 0.060 | 1 | $1.62 | — | — |
| 13:04 | 0.060 | 0.060 | 0.060 | 0.060 | 1 | $0.18 | — | — |
1-minute statistics computed from the recorded ticks; minutes without a trade are omitted. Spread in contract price cents; top-1 depth = resting notional at the best bid / best ask. Every minute of every day is in the free analytics; the raw ticks are in the sample file above.
Tick-by-tick trades and Level-2 order-book depth for every contract of the March Madness 1 Seeds series on Kalshi (71 contract files on the latest day). One bundle = one UTC day of the whole series.
KXMARMAD1SEED — 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 KXMARMAD1SEED-* contract that traded that UTC day.
Coverage runs March 2026 – September 2026 — 147 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.
On average 1 March Madness 1 Seeds contracts had at least one trade per UTC day over the last 30 captured days on Kalshi, with about 6.5K order-book level updates recorded per day. A day bundle contains every contract file of the series for that day.
| 2026-09-05 | 71 | 285 KB | 0 | 0 | $0 | — | — | — | 4.9K | Buy day → |
| 2026-09-04 | 71 | 263 KB | 1 | 1 | $5.5 | 100 % | — | — | 4.4K | Buy day → |
| 2026-09-03 | 71 | 691 KB | 4 | 5 | $3.35 | 100 % | 8.54 ¢ | $199.65 | 17.8K | Buy day → |
| 2026-09-02 | 71 | 507 KB | 0 | 0 | $0 | — | — | — | 10.7K | Buy day → |
| 2026-09-01 | 71 | 525 KB | 1 | 1 | $0.14 | 100 % | — | — | 12.3K | Buy day → |
| 2026-08-31 | 71 | 453 KB | 0 | 0 | $0 | — | — | — | 7.9K | Buy day → |
| 2026-08-30 | 71 | 302 KB | 0 | 0 | $0 | — | — | — | 4.4K | Buy day → |
| 2026-08-29 | 71 | 318 KB | 0 | 0 | $0 | — | — | — | 4.5K | Buy day → |
| 2026-08-28 | 71 | 307 KB | 0 | 0 | $0 | — | — | — | 3.0K | Buy day → |
| 2026-08-27 | 71 | 698 KB | 1 | 1 | $8.8 | 100 % | 1.00 ¢ | $6.27 | 8.8K | Buy day → |
| 2026-08-26 | 71 | 379 KB | 0 | 0 | $0 | — | — | — | 5.1K | Buy day → |
| 2026-08-25 | 71 | 316 KB | 1 | 1 | $0.36 | 100 % | — | — | 4.5K | Buy day → |
| 2026-08-24 | 71 | 343 KB | 0 | 0 | $0 | — | — | — | 6.0K | Buy day → |
| 2026-08-23 | 71 | 268 KB | 0 | 0 | $0 | — | — | — | 3.6K | Buy day → |
| 2026-08-22 | 71 | 251 KB | 0 | 0 | $0 | — | — | — | 3.6K | Buy day → |
| 2026-08-21 | 71 | 398 KB | 0 | 0 | $0 | — | — | — | 6.8K | Buy day → |
| 2026-08-20 | 71 | 667 KB | 2 | 2 | $98.34 | 100 % | 36.8 ¢ | $22.03 | 17.8K | Buy day → |
| 2026-08-19 | 71 | 324 KB | 2 | 2 | $9.76 | 100 % | 4.18 ¢ | $207.99 | 4.9K | Buy day → |
| 2026-08-18 | 71 | 258 KB | 4 | 4 | $25.28 | 100 % | 34.9 ¢ | $161.22 | 3.4K | Buy day → |
| 2026-08-17 | 71 | 314 KB | 0 | 0 | $0 | — | — | — | 4.4K | Buy day → |
| 2026-08-16 | 71 | 319 KB | 0 | 0 | $0 | — | — | — | 4.4K | Buy day → |
| 2026-08-15 | 71 | 291 KB | 0 | 0 | $0 | — | — | — | 4.0K | Buy day → |
| 2026-08-14 | 71 | 346 KB | 1 | 1 | $0.79 | 100 % | 1.00 ¢ | $248.9 | 5.2K | Buy day → |
| 2026-08-13 | 71 | 365 KB | 3 | 4 | $16.98 | 100 % | 21.0 ¢ | $133.31 | 5.1K | Buy day → |
| 2026-08-12 | 71 | 351 KB | 0 | 0 | $0 | — | — | — | 4.7K | Buy day → |
| 2026-08-11 | 71 | 268 KB | 0 | 0 | $0 | — | — | — | 4.0K | Buy day → |
Traded = contracts with at least one trade that day. Buy share = taker-buy side of USD turnover. Avg spread = quoted bid-ask spread in contract price cents (0..1 = 100 ¢), weighted by turnover across the day’s contracts. Top-1 depth = mean of the best bid and best ask notional in USD, weighted by turnover. L2 updates = order-book level updates recorded across all contracts of the day. Days captured before the extended statistics show —.
| 0.220 |
| 0.220 |
| 0.220 |
| 0.220 |
| 0.220 |
| open |
| 1 |
| $5.5 |
| 100 % |
| buy file → |
The 4 most traded March Madness 1 Seeds contracts on 2026-09-03 — 0 closed Yes (≥ 0.97), 0 closed No (≤ 0.03), 4 still open at the last print: 5 trades, $3.35 USD turnover. The busiest contract was KXMARMAD1SEED-27-WIS with $1.8 turnover.
| Contract | Open | High | Low | Close | VWAP | Implied outcome | Trades | Turnover | Buy share | |
|---|---|---|---|---|---|---|---|---|---|---|
| KXMARMAD1SEED-27-WIS | 0.060 | 0.060 | 0.060 | 0.060 | 0.060 | open | 2 | $1.8 | 100 % | buy file → |
| KXMARMAD1SEED-27-DUKE | 0.540 | 0.540 | 0.540 | 0.540 | 0.540 | open | 1 | $0.54 | 100 % | buy file → |
| KXMARMAD1SEED-27-FLA | 0.530 | 0.530 | 0.530 | 0.530 | 0.530 | open | 1 | $0.53 | 100 % | buy file → |
| KXMARMAD1SEED-27-ILL | 0.480 | 0.480 | 0.480 | 0.480 | 0.480 | open | 1 | $0.48 | 100 % | buy file → |
The 1 most traded March Madness 1 Seeds contracts on 2026-09-01 — 0 closed Yes (≥ 0.97), 0 closed No (≤ 0.03), 1 still open at the last print: 1 trades, $0.14 USD turnover. The busiest contract was KXMARMAD1SEED-27-HALL with $0.14 turnover.
| Contract | Open | High | Low | Close | VWAP | Implied outcome | Trades | Turnover | Buy share | |
|---|---|---|---|---|---|---|---|---|---|---|
| KXMARMAD1SEED-27-HALL | 0.140 | 0.140 | 0.140 | 0.140 | 0.140 | open | 1 | $0.14 | 100 % | buy file → |
The 1 most traded March Madness 1 Seeds contracts on 2026-08-27 — 0 closed Yes (≥ 0.97), 0 closed No (≤ 0.03), 1 still open at the last print: 1 trades, $8.8 USD turnover. The busiest contract was KXMARMAD1SEED-27-GONZ with $8.8 turnover.
| Contract | Open | High | Low | Close | VWAP | Implied outcome | Trades | Turnover | Buy share | |
|---|---|---|---|---|---|---|---|---|---|---|
| KXMARMAD1SEED-27-GONZ | 0.220 | 0.220 | 0.220 | 0.220 | 0.220 | open | 1 | $8.8 | 100 % | buy file → |
The 1 most traded March Madness 1 Seeds contracts on 2026-08-25 — 0 closed Yes (≥ 0.97), 0 closed No (≤ 0.03), 1 still open at the last print: 1 trades, $0.36 USD turnover. The busiest contract was KXMARMAD1SEED-27-UK with $0.36 turnover.
| Contract | Open | High | Low | Close | VWAP | Implied outcome | Trades | Turnover | Buy share | |
|---|---|---|---|---|---|---|---|---|---|---|
| KXMARMAD1SEED-27-UK | 0.180 | 0.180 | 0.180 | 0.180 | 0.180 | open | 1 | $0.36 | 100 % | buy file → |
The 2 most traded March Madness 1 Seeds contracts on 2026-08-20 — 0 closed Yes (≥ 0.97), 0 closed No (≤ 0.03), 2 still open at the last print: 2 trades, $98.34 USD turnover. The busiest contract was KXMARMAD1SEED-27-GONZ with $96.04 turnover.
| Contract | Open | High | Low | Close | VWAP | Implied outcome | Trades | Turnover | Buy share | |
|---|---|---|---|---|---|---|---|---|---|---|
| KXMARMAD1SEED-27-GONZ | 0.490 | 0.490 | 0.490 | 0.490 | 0.490 | open | 1 | $96.04 | 100 % | buy file → |
| KXMARMAD1SEED-27-LOU | 0.460 | 0.460 | 0.460 | 0.460 | 0.460 | open | 1 | $2.3 | 100 % | buy file → |
Over the last 30 captured days, the turnover-weighted quoted bid-ask spread was 30.2 ¢ (contracts quote 0..1 = 100 ¢), the mean best-bid/best-ask notional was about $70.02 per side, 100 % of USD turnover was taker-buy. These figures are computed from the recorded Level-2 order books and trade prints — the same data in the day bundles.
KXMARMAD1SEED-27-CONN — $0.38 USD turnover over 1 trades on Kalshi. The 1 most traded contracts of the series did 1 trades and $0.38 that UTC day. Open, high, low, close and VWAP per contract are listed on this page; the tick-level data is in the day bundle.