SCOTUS writs of cert is a politics series on Kalshi, with markets like “What cases will the Supreme Court agree to hear before Jan 2027?”. The Kalshi Eye archive lists 10 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 KXSCOTUSCERT
Category: Politics
Markets: 10 (1 settled, 9 open)
Files: 13 days, October 12, 2026 to October 24, 2026, 8 MB, 675,854 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 SCOTUS writs of cert 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 KXSCOTUSCERT 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=KXSCOTUSCERT/trades-KXSCOTUSCERT-2026-10-24.parquet'
ORDER BY ts_recv;

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

Related Kalshi series

Next SCOTUS justice (KXSCOURT): 41 markets, 13 days of files
SCOTUS confirmations (KXNEWSCOTUSCONF): 10 markets, 13 days of files
Redistricting (KXREDISTRICTING): 38 markets, 13 days of files
Trump pardons (KXTRUMPPARDON): 36 markets, 13 days of files
Next Cabinet memeber out (KXCABOUT): 25 markets, 13 days of files
Epstein list (KXEPSTEINLIST): 18 markets, 13 days of files

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