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kalshi historical data / financials / KXUST10AD
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UST 10 Year Daily, tick by tick.
Kalshi series KXUST10AD: order book and trades, 2026-09-27 → 2026-10-22.

The order-book and trade history of Kalshi's UST 10 Year Daily series (a one-off event): 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.

23 days2026-09-27 → 2026-10-22 · 3 of 26 days without a book · ~9 MB per day · 202 MB on disk · 15 open markets
pull KXUST10AD days →schemapricing

What a KXUST10AD day contains

Four parquet files per day, every market of the series in each. Sizes are this series' own averages over its 23 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.

~946 kB per KXUST10AD 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.

~7 MB per KXUST10AD day
Tradeskalshi_trades

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

~48 kB per KXUST10AD 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.

~487 kB per KXUST10AD day

KXUST10AD 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 the 10Y U.S. Treasury yield be above 4.95% on Oct 22, 2026?: 4.96% or aboveKXUST10AD-26OCT22-T4.95closed 2026-10-22 19:30 UTC
Will the 10Y U.S. Treasury yield be above 4.97% on Oct 22, 2026?: 4.98% or aboveKXUST10AD-26OCT22-T4.97closed 2026-10-22 19:30 UTC
Will the 10Y U.S. Treasury yield be above 4.99% on Oct 22, 2026?: 5% or aboveKXUST10AD-26OCT22-T4.99closed 2026-10-22 19:30 UTC
Will the 10Y U.S. Treasury yield be above 5.01% on Oct 22, 2026?: 5.02% or aboveKXUST10AD-26OCT22-T5.01closed 2026-10-22 19:30 UTC
Will the 10Y U.S. Treasury yield be above 5.03% on Oct 22, 2026?: 5.04% or aboveKXUST10AD-26OCT22-T5.03closed 2026-10-22 19:30 UTC
Will the 10Y U.S. Treasury yield be above 5.05% on Oct 22, 2026?: 5.06% or aboveKXUST10AD-26OCT22-T5.05closed 2026-10-22 19:30 UTC
Will the 10Y U.S. Treasury yield be above 5.07% on Oct 22, 2026?: 5.08% or aboveKXUST10AD-26OCT22-T5.07closed 2026-10-22 19:30 UTC
Will the 10Y U.S. Treasury yield be above 5.09% on Oct 22, 2026?: 5.1% or aboveKXUST10AD-26OCT22-T5.09closed 2026-10-22 19:30 UTC
Will the 10Y U.S. Treasury yield be above 5.11% on Oct 22, 2026?: 5.12% or aboveKXUST10AD-26OCT22-T5.11closed 2026-10-22 19:30 UTC
Will the 10Y U.S. Treasury yield be above 5.13% on Oct 22, 2026?: 5.14% or aboveKXUST10AD-26OCT22-T5.13closed 2026-10-22 19:30 UTC
Will the 10Y U.S. Treasury yield be above 5.15% on Oct 22, 2026?: 5.16% or aboveKXUST10AD-26OCT22-T5.15closed 2026-10-22 19:30 UTC
Will the 10Y U.S. Treasury yield be above 5.17% on Oct 22, 2026?: 5.18% or aboveKXUST10AD-26OCT22-T5.17closed 2026-10-22 19:30 UTC

Coverage notes for KXUST10AD

  • 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 KXUST10AD 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 KXUST10AD-.
  • 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 KXUST10AD, every table, is about 264 MB. Bought for Kalshi, Starter ($29/mo) carries top of book, trades and the ticker for every series plus one series of your choice, KXUST10AD 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: KXUST10AD at full depth →L10: every series at 10 levelsL25: every series, 25 levelsfree sample day

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