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kalshi historical data / elections / KXHOUSETURNOUT
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Voter turnout in the national House popular vote?, tick by tick.
Kalshi series KXHOUSETURNOUT: order book and trades, 2026-09-27 → 2026-10-23.

The order-book and trade history of Kalshi's Voter turnout in the national House popular vote? 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.

27 days2026-09-27 → 2026-10-23 · every day since its first · ~1 MB per day · 32 MB on disk · 9 open markets
pull KXHOUSETURNOUT days →schemapricing

What a KXHOUSETURNOUT 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.

~61 kB per KXHOUSETURNOUT 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.

~1 MB per KXHOUSETURNOUT day
Tradeskalshi_trades

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

~9 kB per KXHOUSETURNOUT 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.

~68 kB per KXHOUSETURNOUT day

KXHOUSETURNOUT markets

The 9 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 total 2026 U.S. House turnout be between 100 and 104.99 million?: 100 to 104.99 millionKXHOUSETURNOUT-26NOV03-100closes 2027-11-03 15:00 UTC
Will the total 2026 U.S. House turnout be between 105 and 109.99 million?: 105 to 109.99 millionKXHOUSETURNOUT-26NOV03-105closes 2027-11-03 15:00 UTC
Will the total 2026 U.S. House turnout be between 110 and 114.99 million?: 110 to 114.99 millionKXHOUSETURNOUT-26NOV03-110closes 2027-11-03 15:00 UTC
Will the total 2026 U.S. House turnout be between 115 and 119.99 million?: 115 to 119.99 millionKXHOUSETURNOUT-26NOV03-115closes 2027-11-03 15:00 UTC
Will the total 2026 U.S. House turnout be between 120 and 124.99 million?: 120 to 124.99 millionKXHOUSETURNOUT-26NOV03-120closes 2027-11-03 15:00 UTC
Will the total 2026 U.S. House turnout be between 90 and 94.99 million?: 90 to 94.99 millionKXHOUSETURNOUT-26NOV03-90closes 2027-11-03 15:00 UTC
Will the total 2026 U.S. House turnout be between 95 and 99.99 million?: 95 to 99.99 millionKXHOUSETURNOUT-26NOV03-95closes 2027-11-03 15:00 UTC
Will the total 2026 U.S. House turnout be at least 125 million?: 125 million and aboveKXHOUSETURNOUT-26NOV03-ABOVE125closes 2027-11-03 15:00 UTC
Will the total 2026 U.S. House turnout be less than 90 million?: Less than 90 millionKXHOUSETURNOUT-26NOV03-BELOW90closes 2027-11-03 15:00 UTC

Coverage notes for KXHOUSETURNOUT

  • 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 KXHOUSETURNOUT 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 KXHOUSETURNOUT-.
  • 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 KXHOUSETURNOUT, every table, is about 36 MB. Bought for Kalshi, Starter ($29/mo) carries top of book, trades and the ticker for every series plus one series of your choice, KXHOUSETURNOUT 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: KXHOUSETURNOUT at full depth →L10: every series at 10 levelsL25: every series, 25 levelsfree sample day

Other elections series on Kalshi

House Race Winner?Midterm margin of victoryVote percentages in US general electionsMichigan Senate-Governor ComboMidterm Voter TurnoutHow many seats will party win in state?2028 D runningWorld leaders out this year?Who will win the Vancouver mayoral election?State legislature winnersWhich state ballot measures will pass?Democratic Primary winner2028 R runningDemocratic VP nomCounty vote percentagesDemocratic House seatsGeneral election county winnersclosest governor's raceMinnesota GovernorRepublican house seats… the whole venue