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kalshi historical data / elections / KXDHOUSEWON
§elections

Democratic House seats won (media calls), tick by tick.
Kalshi series KXDHOUSEWON: order book and trades, 2026-09-27 → 2026-10-23.

The order-book and trade history of Kalshi's Democratic House seats won (media calls) 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 · ~909 kB per day · 24 MB on disk · 13 open markets
pull KXDHOUSEWON days →schemapricing

What a KXDHOUSEWON 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.

~66 kB per KXDHOUSEWON 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.

~762 kB per KXDHOUSEWON day
Tradeskalshi_trades

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

~12 kB per KXDHOUSEWON 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.

~70 kB per KXDHOUSEWON day

KXDHOUSEWON 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 number of U.S. House seats won by Democratic Party candidates be at least 210 in the 2026 U.S. House elections?: At least 210KXDHOUSEWON-26NOV03-AL210closes 2027-01-03 13:59 UTC
Will the number of U.S. House seats won by Democratic Party candidates be at least 214 in the 2026 U.S. House elections?: At least 214KXDHOUSEWON-26NOV03-AL214closes 2027-01-03 13:59 UTC
Will the number of U.S. House seats won by Democratic Party candidates be at least 218 in the 2026 U.S. House elections?: At least 218KXDHOUSEWON-26NOV03-AL218closes 2027-01-03 13:59 UTC
Will the number of U.S. House seats won by Democratic Party candidates be at least 222 in the 2026 U.S. House elections?: At least 222KXDHOUSEWON-26NOV03-AL222closes 2027-01-03 13:59 UTC
Will the number of U.S. House seats won by Democratic Party candidates be at least 226 in the 2026 U.S. House elections?: At least 226KXDHOUSEWON-26NOV03-AL226closes 2027-01-03 13:59 UTC
Will the number of U.S. House seats won by Democratic Party candidates be at least 230 in the 2026 U.S. House elections?: At least 230KXDHOUSEWON-26NOV03-AL230closes 2027-01-03 13:59 UTC
Will the number of U.S. House seats won by Democratic Party candidates be at least 234 in the 2026 U.S. House elections?: At least 234KXDHOUSEWON-26NOV03-AL234closes 2027-01-03 13:59 UTC
Will the number of U.S. House seats won by Democratic Party candidates be at least 238 in the 2026 U.S. House elections?: At least 238KXDHOUSEWON-26NOV03-AL238closes 2027-01-03 13:59 UTC
Will the number of U.S. House seats won by Democratic Party candidates be at least 242 in the 2026 U.S. House elections?: At least 242KXDHOUSEWON-26NOV03-AL242closes 2027-01-03 13:59 UTC
Will the number of U.S. House seats won by Democratic Party candidates be at least 246 in the 2026 U.S. House elections?: At least 246KXDHOUSEWON-26NOV03-AL246closes 2027-01-03 13:59 UTC
Will the number of U.S. House seats won by Democratic Party candidates be at least 250 in the 2026 U.S. House elections?: At least 250KXDHOUSEWON-26NOV03-AL250closes 2027-01-03 13:59 UTC
Will the number of U.S. House seats won by Democratic Party candidates be at least 254 in the 2026 U.S. House elections?: At least 254KXDHOUSEWON-26NOV03-AL254closes 2027-01-03 13:59 UTC

Coverage notes for KXDHOUSEWON

  • 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 KXDHOUSEWON 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 KXDHOUSEWON-.
  • 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 KXDHOUSEWON, every table, is about 27 MB. Bought for Kalshi, Starter ($29/mo) carries top of book, trades and the ticker for every series plus one series of your choice, KXDHOUSEWON 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: KXDHOUSEWON at full depth →L10: every series at 10 levelsL25: every series, 25 levelsfree sample day

Other elections series on Kalshi

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