kalshi historical data / elections / KXTRUMPDEMDISTRICTS

§elections

How many Trump-won districts will Democrats win in 2026?, tick by tick.
Kalshi series KXTRUMPDEMDISTRICTS: order book and trades, 2026-09-27 → 2026-10-23.

The order-book and trade history of Kalshi's How many Trump-won districts will Democrats win in 2026? 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 · ~433 kB per day · 11 MB on disk · 13 open markets

pull KXTRUMPDEMDISTRICTS days →schema pricing

What a KXTRUMPDEMDISTRICTS 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.

~15 kB per KXTRUMPDEMDISTRICTS 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.

~395 kB per KXTRUMPDEMDISTRICTS day

Tradeskalshi_trades

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

~4 kB per KXTRUMPDEMDISTRICTS 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.

~18 kB per KXTRUMPDEMDISTRICTS day

KXTRUMPDEMDISTRICTS 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 Democratic U.S. House members elected from the 235 districts that Donald Trump carried in 2024 be at least 10 at the November 3, 2026 general election?: At least 10KXTRUMPDEMDISTRICTS-26NOV03-AL10closes 2026-12-15 14:59 UTC

Will the number of Democratic U.S. House members elected from the 235 districts that Donald Trump carried in 2024 be at least 13 at the November 3, 2026 general election?: At least 13KXTRUMPDEMDISTRICTS-26NOV03-AL13closes 2026-12-15 14:59 UTC

Will the number of Democratic U.S. House members elected from the 235 districts that Donald Trump carried in 2024 be at least 16 at the November 3, 2026 general election?: At least 16KXTRUMPDEMDISTRICTS-26NOV03-AL16closes 2026-12-15 14:59 UTC

Will the number of Democratic U.S. House members elected from the 235 districts that Donald Trump carried in 2024 be at least 19 at the November 3, 2026 general election?: At least 19KXTRUMPDEMDISTRICTS-26NOV03-AL19closes 2026-12-15 14:59 UTC

Will the number of Democratic U.S. House members elected from the 235 districts that Donald Trump carried in 2024 be at least 22 at the November 3, 2026 general election?: At least 22KXTRUMPDEMDISTRICTS-26NOV03-AL22closes 2026-12-15 14:59 UTC

Will the number of Democratic U.S. House members elected from the 235 districts that Donald Trump carried in 2024 be at least 25 at the November 3, 2026 general election?: At least 25KXTRUMPDEMDISTRICTS-26NOV03-AL25closes 2026-12-15 14:59 UTC

Will the number of Democratic U.S. House members elected from the 235 districts that Donald Trump carried in 2024 be at least 28 at the November 3, 2026 general election?: At least 28KXTRUMPDEMDISTRICTS-26NOV03-AL28closes 2026-12-15 14:59 UTC

Will the number of Democratic U.S. House members elected from the 235 districts that Donald Trump carried in 2024 be at least 31 at the November 3, 2026 general election?: At least 31KXTRUMPDEMDISTRICTS-26NOV03-AL31closes 2026-12-15 14:59 UTC

Will the number of Democratic U.S. House members elected from the 235 districts that Donald Trump carried in 2024 be at least 35 at the November 3, 2026 general election?: At least 35KXTRUMPDEMDISTRICTS-26NOV03-AL35closes 2026-12-15 14:59 UTC

Will the number of Democratic U.S. House members elected from the 235 districts that Donald Trump carried in 2024 be at least 40 at the November 3, 2026 general election?: At least 40KXTRUMPDEMDISTRICTS-26NOV03-AL40closes 2026-12-15 14:59 UTC

Will the number of Democratic U.S. House members elected from the 235 districts that Donald Trump carried in 2024 be at least 46 at the November 3, 2026 general election?: At least 46KXTRUMPDEMDISTRICTS-26NOV03-AL46closes 2026-12-15 14:59 UTC

Will the number of Democratic U.S. House members elected from the 235 districts that Donald Trump carried in 2024 be at least 52 at the November 3, 2026 general election?: At least 52KXTRUMPDEMDISTRICTS-26NOV03-AL52closes 2026-12-15 14:59 UTC

Coverage notes for KXTRUMPDEMDISTRICTS

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 KXTRUMPDEMDISTRICTS 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 KXTRUMPDEMDISTRICTS-.
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 KXTRUMPDEMDISTRICTS, every table, is about 13 MB. Bought for Kalshi, Starter ($29/mo) carries top of book, trades and the ticker for every series plus one series of your choice, KXTRUMPDEMDISTRICTS 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: KXTRUMPDEMDISTRICTS at full depth →L10: every series at 10 levels L25: every series, 25 levels free sample day

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