Kalshi Pro Basketball Spread Historical Data
Every Kalshi “Pro Basketball Spread” contract of the day — every trade print and the complete Level-2 book, captured co-located with nanosecond venue and receive timestamps. 103 trading days as day bundles, €1 per day, bought as a guest with instant download.
Pro Basketball Spread on Kalshi — activity
Per-day trade and turnover statistics exist from July 2026 onward — a limit of the statistics, not of the capture: older days are archived in full (every contract, every message) without a statistics row.
One purchase, the whole series for a day
A series-day bundle contains every Pro Basketball Spread contract that was listed on Kalshi on that UTC day — traded or not — 48 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 – June 2026 — 103 trading days, 15.7 GB compressed in total. A day typically holds 135 contract files (up to 353 on the busiest day, 342 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.
Pro Basketball Spread — last 30 days in the archive
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.
| UTC day | Files | Size | Notes | |
|---|---|---|---|---|
| 2026-06-14 | 48 | 184 MB | Buy day → | |
| 2026-06-13 | 44 | 24.2 MB | Buy day → | |
| 2026-06-12 | 44 | 22.5 MB | Buy day → | |
| 2026-06-11 | 104 | 141 MB | Buy day → | |
| 2026-06-10 | 45 | 23.8 MB | Buy day → | |
| 2026-06-09 | 95 | 136 MB | Buy day → | |
| 2026-06-08 | 45 | 28.6 MB | Buy day → | |
| 2026-06-07 | 44 | 18.7 MB | Buy day → | |
| 2026-06-06 | 92 | 87.0 MB | Buy day → | |
| 2026-06-05 | 45 | 30.3 MB | Buy day → | |
| 2026-06-04 | 97 | 104 MB | Buy day → | |
| 2026-06-03 | 49 | 33.9 MB | Buy day → | |
| 2026-06-02 | 49 | 10.5 MB | Buy day → | |
| 2026-06-01 | 49 | 9.18 MB | Buy day → | |
| 2026-05-31 | 73 | 182 MB | Buy day → | |
| 2026-05-30 | 45 | 28.8 MB | Buy day → | |
| 2026-05-29 | 92 | 220 MB | Buy day → | |
| 2026-05-28 | 44 | 22.4 MB | Buy day → | |
| 2026-05-27 | 92 | 168 MB | Buy day → | |
| 2026-05-26 | 109 | 187 MB | Buy day → | |
| 2026-05-25 | 144 | 225 MB | Buy day → | |
| 2026-05-24 | 142 | 195 MB | Buy day → | |
| 2026-05-23 | 140 | 240 MB | Buy day → | |
| 2026-05-22 | 140 | 175 MB | Buy day → | |
| 2026-05-21 | 138 | 198 MB | Buy day → | |
| 2026-05-20 | 146 | 220 MB | Buy day → | |
| 2026-05-19 | 147 | 222 MB | Buy day → | |
| 2026-05-18 | 108 | 134 MB | Buy day → | |
| 2026-05-17 | 56 | 21.6 MB | Buy day → | |
| 2026-05-16 | 164 | 176 MB | Buy day → |
Trades and turnover per day appear here once our daily statistics have captured this series — normally the morning UTC after a day closes.
Latest Pro Basketball Spread contracts
The 24 largest Pro Basketball Spread contract files recorded on 2026-06-14— every contract of the series is inside that day's bundle; single contracts can also be bought as individual day files. Per-contract trades, turnover and prices appear here once the daily statistics have captured this series.
- KXNBASPREAD-26JUN13NYKSAS-SAS5 9.21 MB buy file →
- KXNBASPREAD-26JUN13NYKSAS-SAS7 7.11 MB buy file →
- KXNBASPREAD-26JUN13NYKSAS-SAS4 7.11 MB buy file →
- KXNBASPREAD-26JUN13NYKSAS-SAS3 6.99 MB buy file →
- KXNBASPREAD-26JUN13NYKSAS-SAS6 6.85 MB buy file →
- KXNBASPREAD-26JUN13NYKSAS-SAS9 6.39 MB buy file →
- KXNBASPREAD-26JUN13NYKSAS-SAS8 6.38 MB buy file →
- KXNBASPREAD-26JUN13NYKSAS-NYK2 6.20 MB buy file →
- KXNBASPREAD-26JUN13NYKSAS-SAS2 6.11 MB buy file →
- KXNBASPREAD-26JUN13NYKSAS-NYK3 6.11 MB buy file →
- KXNBASPREAD-26JUN13NYKSAS-SAS1 5.91 MB buy file →
- KXNBASPREAD-26JUN13NYKSAS-SAS10 5.91 MB buy file →
- KXNBASPREAD-26JUN13NYKSAS-NYK1 5.79 MB buy file →
- KXNBASPREAD-26JUN13NYKSAS-NYK4 5.35 MB buy file →
- KXNBASPREAD-26JUN13NYKSAS-SAS15 5.06 MB buy file →
- KXNBASPREAD-26JUN13NYKSAS-SAS11 4.85 MB buy file →
- KXNBASPREAD-26JUN13NYKSAS-SAS12 4.70 MB buy file →
- KXNBASPREAD-26JUN13NYKSAS-NYK5 4.60 MB buy file →
- KXNBASPREAD-26JUN13NYKSAS-SAS19 4.56 MB buy file →
- KXNBASPREAD-26JUN13NYKSAS-SAS17 4.42 MB buy file →
- KXNBASPREAD-26JUN13NYKSAS-SAS13 4.41 MB buy file →
- KXNBASPREAD-26JUN13NYKSAS-SAS16 4.30 MB buy file →
- KXNBASPREAD-26JUN13NYKSAS-SAS18 4.26 MB buy file →
- KXNBASPREAD-26JUN13NYKSAS-SAS14 4.01 MB buy file →
Why buy Kalshi Pro Basketball Spread data here
Four things every page on this site is built on — and the reason the numbers above exist at all.
We record everything
The complete public feed of each venue as it was published: every Level-2 snapshot and update at the venue's full book depth, every trade with its aggressor side, every quote, funding, mark-price and liquidation event — for every instrument the venue lists, every UTC day since we added the venue. Nothing sampled, no top-N cut, no on-demand capture.
Institutional grade
Captured co-located at the venue with the exchange timestamp and our receive timestamp in integer nanoseconds, an event-id chain that makes any gap visible, and one normalized schema across 35+ venues — the same capture our own high-frequency trading engine and enterprise feeds run on.
€1 per instrument-day
Any instrument-day is €1, series-day bundles start at €1 — no subscription, no minimum order, no tiers to unlock. Credit packs lower the effective price and never expire, and every venue has free full-day samples to test against first.
Self-service for everyone
Pick the days in the Data Shop, pay by card as a guest and download immediately — no sales call, no enterprise contract, no KYC. Coding agents buy the same files through the MCP server, and the free Agent Skill teaches them the format.
Kalshi Pro Basketball Spread data — FAQ
What Kalshi Pro Basketball Spread data can I download?
Tick-by-tick trades and Level-2 order-book depth for every contract of the Pro Basketball Spread series on Kalshi (48 contract files on the latest day). One bundle = one UTC day of the whole series.
What is the Kalshi series ticker for Pro Basketball Spread?
KXNBASPREAD — 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 KXNBASPREAD-* contract listed that UTC day.
How far back does the Pro Basketball Spread data go?
Coverage runs March 2026 – June 2026 — 103 trading days in total.
What format are the Kalshi files in?
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.
Can I get Kalshi Pro Basketball Spread data as CSV or Parquet?
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.
How much does Kalshi Pro Basketball Spread historical data cost?
€1 per series-day bundle — every contract of the series for that day — no subscription, no minimum order; buy as a guest in the Data Shop and download immediately. Credit packs lower the effective price and never expire.
Do I need an account or a sales call?
No. Pick the Pro Basketball Spread series-days in the Data Shop, pay by card as a guest and download immediately — no subscription, no minimum order, no KYC, no enterprise contract, no sales call. Coding agents buy the same bundles through the MCP server.
How is the Kalshi Pro Basketball Spread data captured?
Co-located at the venue, message by message: every Level-2 update and every trade print carries the exchange timestamp and our receive timestamp in integer nanoseconds, an event-id chain makes any gap visible, and one normalized schema across 35+ venues means a parser written for Binance reads these files unchanged. It is the same capture our own high-frequency trading engine runs on — nothing sampled, no top-N cut.