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kalshi historical data / politics / KXCONGRESSTESTIFY
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Congress Testify this year?, tick by tick.
Kalshi series KXCONGRESSTESTIFY: order book and trades, 2026-09-27 → 2026-10-23.

The order-book and trade history of Kalshi's Congress Testify this year? series (a new event every year): 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 · ~1006 kB per day · 26 MB on disk · 13 open markets
pull KXCONGRESSTESTIFY days →schemapricing

What a KXCONGRESSTESTIFY 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.

~34 kB per KXCONGRESSTESTIFY 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.

~927 kB per KXCONGRESSTESTIFY day
Tradeskalshi_trades

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

~5 kB per KXCONGRESSTESTIFY 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.

~40 kB per KXCONGRESSTESTIFY day

KXCONGRESSTESTIFY 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 Anthony Fauci testify in front of Congress before Jan 2027?: Anthony FauciKXCONGRESSTESTIFY-27JAN-AFAUcloses 2027-01-01 15:00 UTC
Will Barack Obama testify in front of Congress before Jan 2027?: Barack ObamaKXCONGRESSTESTIFY-27JAN-BOBAcloses 2027-01-01 15:00 UTC
Will Ghislaine Maxwell testify in front of Congress before Jan 2027?: Ghislaine MaxwellKXCONGRESSTESTIFY-27JAN-GMAXcloses 2027-01-01 15:00 UTC
Will Joe Biden testify in front of Congress before Jan 2027?: Joe BidenKXCONGRESSTESTIFY-27JAN-JBIDcloses 2027-01-01 15:00 UTC
Will James Donaldson testify in front of Congress before Jan 2027?: James DonaldsonKXCONGRESSTESTIFY-27JAN-JDONcloses 2027-01-01 15:00 UTC
Will Jerome Powell testify in front of Congress before Jan 2027?: Jerome PowellKXCONGRESSTESTIFY-27JAN-JPOWcloses 2027-01-01 15:00 UTC
Will Jelly Roll testify in front of Congress before Jan 2027?: Jelly RollKXCONGRESSTESTIFY-27JAN-JROLcloses 2027-01-01 15:00 UTC
Will Jon Stewart testify in front of Congress before Jan 2027?: Jon StewartKXCONGRESSTESTIFY-27JAN-JSTEcloses 2027-01-01 15:00 UTC
Will Kamala Harris testify in front of Congress before Jan 2027?: Kamala HarrisKXCONGRESSTESTIFY-27JAN-KHARcloses 2027-01-01 15:00 UTC
Will Mark Zuckerberg testify in front of Congress before Jan 2027?: Mark ZuckerbergKXCONGRESSTESTIFY-27JAN-MZUCcloses 2027-01-01 15:00 UTC
Will Sam Altman testify in front of Congress before Jan 2027?: Sam AltmanKXCONGRESSTESTIFY-27JAN-SALTcloses 2027-01-01 15:00 UTC
Will Shou Zi Chew testify in front of Congress before Jan 2027?: Shou Zi ChewKXCONGRESSTESTIFY-27JAN-SCHEcloses 2027-01-01 15:00 UTC

Coverage notes for KXCONGRESSTESTIFY

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

Other politics series on Kalshi

Trump approval ratingVoteHub GCBWho will be charged with a federal crimeWho will leave the Trump administrationPresident RCP approval rating this weekBills become law this year?Mar-a-Lago tripsWhat countries will Trump visit this year?Epstein listNumber of Trump Truth Social posts this week?Which states will Trump visit this year?Who will Trump meet this year?Will Trump do anything today?Traffic through the Strait of HormuzNext UN Secretary-GeneralWho will Trump pardon?Traffic through the Bab al-Mandab StraitTrump pardonsPresident impeachedARRESTS… the whole venue