Companies acquired this year is a one-time financials series on Kalshi, with markets like “Will any company announce acquisition of Magnum Ice Cream Company before Jan 1, 2027?”. The Kalshi Eye archive lists 25 of its markets and has 13 days of daily Parquet files from October 12, 2026 to October 24, 2026 (8 MB), with every order book change and trade.

Venue: Kalshi, series KXACQANNOUNCEANNUAL
Category: Financials, one-time
Markets: 25 (1 settled, 24 open)
Files: 13 days, October 12, 2026 to October 24, 2026, 8 MB, 747,724 rows
Datasets: Order book (L2, incremental), Order book snapshots (top 10, 1 second), Top of book (every change), Top of book (1-minute bars), Trades

Open Companies acquired this year in Markets to see every day and market, then export the days you need. Free sample files of each dataset are on the Kalshi data page.

Reading the files

Every KXACQANNOUNCEANNUAL trade on October 24, 2026, in DuckDB:

SELECT ts_recv, ticker, yes_price, size, taker_side
FROM 'kalshieye-data/trades/date=2026-10-24/series=KXACQANNOUNCEANNUAL/trades-KXACQANNOUNCEANNUAL-2026-10-24.parquet'
ORDER BY ts_recv;

To test a strategy on this series, see How to backtest Kalshi markets.

Related Kalshi series

Companies added to SP500 (KXSP500ADDQ): 57 markets, 13 days of files
Companies removed from DJIA (KXDJIAREMOVE): 28 markets, 13 days of files
Companies removed from SP500 (KXSP500REMOVEQ): 26 markets, 13 days of files
Which companies will the US take a stake in (KXUSACOMPANYSTAKE): 21 markets, 13 days of files
UST 7 Year Daily (KXUST7AD): 250 markets, 12 days of files
UST 10 Year Daily (KXUST10AD): 220 markets, 12 days of files

Figures through October 24, 2026. All Kalshi series with pages are listed on Kalshi series.