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kalshi historical data / science and technology / KXTOPAI
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Top-ranked AI, tick by tick.
Kalshi series KXTOPAI: order book and trades, 2026-09-27 → 2026-10-23.

The order-book and trade history of Kalshi's Top-ranked AI series (new markets on an irregular schedule, one event per game, match or release): top of book on every change, the 25-level book on every change in YES terms, every trade with the taker's side, and Kalshi's own ticker, with exchange timestamps to the millisecond. Captured by us from Kalshi's websocket on two independent legs and checked against the exchange's own book snapshots.

27 days2026-09-27 → 2026-10-23 · every day since its first · ~766 kB per day · 20 MB on disk · 12 open markets
pull KXTOPAI days →schemapricing

What a KXTOPAI day contains

Four parquet files per day, every market of the series in each. Sizes are this series' own averages over its 27 days on disk.

Top of book (every change)kalshi_l1

Best YES bid and ask with sizes and the spread, one row whenever either changed, derived tick by tick from the rebuilt book: not Kalshi's conflated ticker.

~73 kB per KXTOPAI day
Order book, 25 levels, every changekalshi_l2

The whole ladder after every book event, in YES terms (the NO bids become the asks, at their sizes), 25 levels a side: wide columns bid_px_1 … ask_sz_25, plus the exchange's own hourly snapshots. Each row is self-contained, so you can start reading mid-day.

~597 kB per KXTOPAI day
Tradeskalshi_trades

Every trade: YES and NO price, size in contracts, the taker's side, block-trade flag, trade id.

~24 kB per KXTOPAI day
Kalshi ticker (~1 s)kalshi_ticker

Kalshi's own ticker feed, about one update a second per market: last price, YES bid/ask with sizes, cumulative volume and open interest in contracts and dollars.

~73 kB per KXTOPAI day

KXTOPAI markets

The 12 closing nearest to now, from Kalshi's daily market list. Each is a row key (market_ticker) in every table, captured from the day it opens until it settles.

Will 01A1 have a top-ranked AI model before 2027?: 01A1KXTOPAI-27-JAN01-01A1closes 2027-01-01 15:00 UTC
Will Alibaba have a top-ranked AI model before 2027?: AlibabaKXTOPAI-27-JAN01-ALIBcloses 2027-01-01 15:00 UTC
Will Baidu have a top-ranked AI model before 2027?: BaiduKXTOPAI-27-JAN01-BAIDcloses 2027-01-01 15:00 UTC
Will ByteDance have a top-ranked AI model before 2027?: ByteDanceKXTOPAI-27-JAN01-BYTEcloses 2027-01-01 15:00 UTC
Will Deepseek have a top-ranked AI model before 2027?: DeepseekKXTOPAI-27-JAN01-DEPPcloses 2027-01-01 15:00 UTC
Will Meta have a top-ranked AI model before 2027?: MetaKXTOPAI-27-JAN01-METAcloses 2027-01-01 15:00 UTC
Will Mistral have a top-ranked AI model before 2027?: MistralKXTOPAI-27-JAN01-MISTcloses 2027-01-01 15:00 UTC
Will Moonshot AI have a top-ranked AI model before 2027?: Moonshot AIKXTOPAI-27-JAN01-MOONcloses 2027-01-01 15:00 UTC
Will Nvidia have a top-ranked AI model before 2027?: NvidiaKXTOPAI-27-JAN01-NVIDcloses 2027-01-01 15:00 UTC
Will OpenAI have a top-ranked AI model before 2027?: OpenAIKXTOPAI-27-JAN01-OPENcloses 2027-01-01 15:00 UTC
Will xAI have a top-ranked AI model before 2027?: xAIKXTOPAI-27-JAN01-XAIcloses 2027-01-01 15:00 UTC
Will Z.ai have a top-ranked AI model before 2027?: Z.aiKXTOPAI-27-JAN01-ZAIcloses 2027-01-01 15:00 UTC

Coverage notes for KXTOPAI

  • First day on disk: 2026-09-27. That is the day our Kalshi capture began, not the series' launch. New days are added daily.
  • Trades before 2026-09-27. Kalshi's historical API has no tick-level order book, so earlier KXTOPAI trades are in the whole-exchange trades history (from 2021-06-30, one file a day): filter market_ticker to this series' markets, which start with KXTOPAI-.
  • The first day starts at 11:00 UTC. Our capture began at 11:00 UTC on 27 September 2026: 13 hours that day, not 24, and no CF Benchmarks index file (that capture starts on the 28th).
  • A book-quality dip on 2026-09-29. During a pipeline cutover 10,255 exchange snapshots disagreed with the rebuilt book (41 to 1,378 on every other day) and 16,678 negative levels were clamped to zero. The book resynchronises at every exchange snapshot; trades and ticker are unaffected.
  • Every bundle ships a README with the schemas and, per day, how often the rebuilt book matched the exchange's own snapshots, for your exact range.

Pricing

A month of KXTOPAI, every table, is about 22 MB. Bought for Kalshi, Starter ($29/mo) carries top of book, trades and the ticker for every series plus one series of your choice, KXTOPAI if you like, at full book depth; L10 ($49/mo) carries every series' book at 10 levels and L25 ($99/mo) the full 25-level book. Each includes 7 days before you join and every day after. Any free account can pull 2026-10-07, any series, up to 1.0 GB.

Starter: KXTOPAI at full depth →L10: every series at 10 levelsL25: every series, 25 levelsfree sample day

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