B200 Monthly is a monthly financials series on Kalshi, with markets like “Will the monthly average compute price of NVIDIA's B200 be above $12.00 in September 2026?”. The Kalshi Eye archive lists 218 of its markets and has 13 days of daily Parquet files from October 12, 2026 to October 24, 2026 (6 MB), with every order book change and trade.

Venue: Kalshi, series KXB200MS
Category: Financials, monthly
Markets: 218 (28 settled, 190 open)
Files: 13 days, October 12, 2026 to October 24, 2026, 6 MB, 1,479,274 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 B200 Monthly 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 KXB200MS 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=KXB200MS/trades-KXB200MS-2026-10-24.parquet'
ORDER BY ts_recv;

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

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RTX 5090 Monthly (KXRTX5090MS): 109 markets, 13 days of files
10Y how high monthly (KX10YRDIRHM): 95 markets, 13 days of files
30Y how low monthly (KX30YRDIRLM): 60 markets, 13 days of files
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Figures through October 24, 2026. All Kalshi series with pages are listed on Kalshi series.