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Data Subscriptions

Open-Close data is a volume summary file for trading activity on the C1 exchange. Available in 10-minute summary intervals or as an end-of-day summary, it aggregates and buckets the volume by origin (customer, professional customer, broker-dealer, and market maker), buying/selling, and opening/closing criteria. The customer and professional customer volume are further broken down into trade size buckets (fewer than 100 contracts, 100-199 contracts, greater than 199 contracts). Fields 10-17 will only be available in the end-of-day files and will not be populated in the 10-minute intervals. It contains all series in an underlying security's chain-if it has volume on C1. End-of-day data is delivered overnight after midnight U.S. Eastern, 10-minute files are delivered intraday a few minutes after each interval closes. For pricing, please see “LiveVol Fees” in the Cboe Exchange Fee Schedule.


To purchase historical data, please see Open-Close C1 Historical


Open-Close subscriptions are also available for: BZX, C2, and EDGX


The downloadable sample contains 2 files: 1 sample of the EOD format, 1 of the 10-minute

CFE VIX Tick data includes trades and quotes of all VIX futures contracts (VX) from the Cboe Futures Exchange (CFE). A monthly subscription allows you to receive a daily file via FTP for the previous trade date.
Cboe Streaming Market Indices (CSMi) consists of over 200 index values offered by Standard and Poor’s and Cboe and many more firms. This offering contains all disseminated values for each index on a given day, it can vary from every 15 seconds during trading hours to once per day based on the index. Click here to view the current indexes on the CSMi feed.