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kalshi historical data / financials / KXUST30YRRATE27
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30Y UST at 2027YE, tick by tick.
Kalshi series KXUST30YRRATE27: order book and trades, 2026-09-30 → 2026-10-23.

The order-book and trade history of Kalshi's 30Y UST at 2027YE 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.

24 days2026-09-30 → 2026-10-23 · every day since its first · ~3 MB per day · 73 MB on disk · 25 open markets
pull KXUST30YRRATE27 days →schemapricing

What a KXUST30YRRATE27 day contains

Four parquet files per day, every market of the series in each. Sizes are this series' own averages over its 24 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.

~370 kB per KXUST30YRRATE27 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.

~2 MB per KXUST30YRRATE27 day
Tradeskalshi_trades

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

~37 kB per KXUST30YRRATE27 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.

~222 kB per KXUST30YRRATE27 day

KXUST30YRRATE27 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 30Y U.S. Treasury yield be above 1.99% on Dec 31, 2027?: 2% or aboveKXUST30YRRATE27-27DEC31-T1.99closes 2027-12-31 20:30 UTC
Will the 30Y U.S. Treasury yield be above 2.24% on Dec 31, 2027?: 2.25% or aboveKXUST30YRRATE27-27DEC31-T2.24closes 2027-12-31 20:30 UTC
Will the 30Y U.S. Treasury yield be above 2.49% on Dec 31, 2027?: 2.5% or aboveKXUST30YRRATE27-27DEC31-T2.49closes 2027-12-31 20:30 UTC
Will the 30Y U.S. Treasury yield be above 2.74% on Dec 31, 2027?: 2.75% or aboveKXUST30YRRATE27-27DEC31-T2.74closes 2027-12-31 20:30 UTC
Will the 30Y U.S. Treasury yield be above 2.99% on Dec 31, 2027?: 3% or aboveKXUST30YRRATE27-27DEC31-T2.99closes 2027-12-31 20:30 UTC
Will the 30Y U.S. Treasury yield be above 3.24% on Dec 31, 2027?: 3.25% or aboveKXUST30YRRATE27-27DEC31-T3.24closes 2027-12-31 20:30 UTC
Will the 30Y U.S. Treasury yield be above 3.49% on Dec 31, 2027?: 3.5% or aboveKXUST30YRRATE27-27DEC31-T3.49closes 2027-12-31 20:30 UTC
Will the 30Y U.S. Treasury yield be above 3.74% on Dec 31, 2027?: 3.75% or aboveKXUST30YRRATE27-27DEC31-T3.74closes 2027-12-31 20:30 UTC
Will the 30Y U.S. Treasury yield be above 3.99% on Dec 31, 2027?: 4% or aboveKXUST30YRRATE27-27DEC31-T3.99closes 2027-12-31 20:30 UTC
Will the 30Y U.S. Treasury yield be above 4.24% on Dec 31, 2027?: 4.25% or aboveKXUST30YRRATE27-27DEC31-T4.24closes 2027-12-31 20:30 UTC
Will the 30Y U.S. Treasury yield be above 4.49% on Dec 31, 2027?: 4.5% or aboveKXUST30YRRATE27-27DEC31-T4.49closes 2027-12-31 20:30 UTC
Will the 30Y U.S. Treasury yield be above 4.74% on Dec 31, 2027?: 4.75% or aboveKXUST30YRRATE27-27DEC31-T4.74closes 2027-12-31 20:30 UTC

Coverage notes for KXUST30YRRATE27

  • First day on disk: 2026-09-30. The series' first book appeared then. New days are added daily.
  • Trades before 2026-09-27. Kalshi's historical API has no tick-level order book, so earlier KXUST30YRRATE27 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 KXUST30YRRATE27-.
  • 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 KXUST30YRRATE27, every table, is about 92 MB. Bought for Kalshi, Starter ($29/mo) carries top of book, trades and the ticker for every series plus one series of your choice, KXUST30YRRATE27 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: KXUST30YRRATE27 at full depth →L10: every series at 10 levelsL25: every series, 25 levelsfree sample day

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