OpenAI Vercel spend share is a science and technology series on Kalshi, with markets like “OpenAI Vercel share of AI Gateway spend across the top labs above 19.0%”. The Kalshi Eye archive lists 161 of its markets and has 13 days of daily Parquet files from October 12, 2026 to October 24, 2026 (61 MB), with every order book change and trade.

Venue: Kalshi, series KXOPENVSPEND
Category: Science and Technology
Markets: 161 (143 settled, 18 open)
Files: 13 days, October 12, 2026 to October 24, 2026, 61 MB, 4,353,465 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 OpenAI Vercel spend share 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 KXOPENVSPEND 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=KXOPENVSPEND/trades-KXOPENVSPEND-2026-10-24.parquet'
ORDER BY ts_recv;

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

Related Kalshi series

Moonshot AI Vercel spend share (KXMOONVSPEND): 169 markets, 13 days of files
Anthropic Vercel spend share (KXANTHVSPEND): 167 markets, 13 days of files
OpenAI Vercel requests share (KXOPENVREQ): 161 markets, 13 days of files
OpenAI Market Share (KXOPENSHARE): 93 markets, 11 days of files
What hardware will openAI/Jony Ive launch (KXOAIHARDWARE): 10 markets, 13 days of files
Open weights AI market share (KXOPENSOURCESHARE): 161 markets, 13 days of files

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