US employer health insurance cost growth is a quarterly economics series on Kalshi, with markets like “Will the year-over-year increase in U.S. private-industry employer health-benefit costs for September 2026 be above 7.5%?”. The Kalshi Eye archive lists 14 of its markets and has 12 days of daily Parquet files from October 12, 2026 to October 23, 2026 (2 MB), with every order book change and trade.

Venue: Kalshi, series KXHEALTHCOST
Category: Economics, quarterly
Markets: 14 (0 settled, 14 open)
Files: 12 days, October 12, 2026 to October 23, 2026, 2 MB, 144,835 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 US employer health insurance cost growth 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 KXHEALTHCOST trade on October 23, 2026, in DuckDB:

SELECT ts_recv, ticker, yes_price, size, taker_side
FROM 'kalshieye-data/trades/date=2026-10-23/series=KXHEALTHCOST/trades-KXHEALTHCOST-2026-10-23.parquet'
ORDER BY ts_recv;

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

Related Kalshi series

Ohio gas price (KXAAAGASDOH): 458 markets, 12 days of files
Wisconsin gas price (KXAAAGASDWI): 428 markets, 12 days of files
Florida gas price (KXAAAGASDFL): 418 markets, 12 days of files
Indiana gas price (KXAAAGASDIN): 398 markets, 12 days of files
Colorado gas price (KXAAAGASDCO): 378 markets, 12 days of files
Illinois gas price (KXAAAGASDIL): 378 markets, 12 days of files

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