Anthropic Vercel spend share is a science and technology series on Kalshi, with markets like “Anthropic Vercel share of AI Gateway spend across the top labs above 42.8%”. The Kalshi Eye archive lists 167 of its markets and has 13 days of daily Parquet files from October 12, 2026 to October 24, 2026 (60 MB), with every order book change and trade.

Venue: Kalshi, series KXANTHVSPEND
Category: Science and Technology
Markets: 167 (149 settled, 18 open)
Files: 13 days, October 12, 2026 to October 24, 2026, 60 MB, 4,354,724 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 Anthropic 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 KXANTHVSPEND 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=KXANTHVSPEND/trades-KXANTHVSPEND-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 requests share (KXANTHVREQ): 166 markets, 13 days of files
OpenAI Vercel spend share (KXOPENVSPEND): 161 markets, 13 days of files
Anthropic Market Share (KXANTHSHARE): 87 markets, 11 days of files
Open weights AI market share (KXOPENSOURCESHARE): 161 markets, 13 days of files
Google AI Market Share (KXGOOGSHARE): 86 markets, 11 days of files

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