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  • Data Type: Skew Remove
  • Data Type: Tick Remove
  • Data Type: Volume Summary Remove
  • Purchase Type: Annual Subscription Remove

Data Subscriptions

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.
Open-Close data is a volume summary file of trading activity on the Cboe C1 exchange (does not include activity from C2, BZX, or EDGX) that summarizes the volume (contracts traded) by origin (customer and firm orders only), original order size and the opening or closing position of the order. The Open-Close volume is further broken into categories of buy/sell, open/close and order size "buckets". The data for all Cboe (C1) securities goes back to 1990 and contains all series in an underlying security's chain-if it has volume. The Open-Close data is available as a data download by individual underlying symbols, or as a daily update that includes all Cboe (C1) traded options for the previous trade day's data going forward, and as bulk data that includes all Cboe (C1) traded securities for the time frame chosen. Click here for Open-Close pricing.

*The Cboe Options Exchange (C1) will be migrating to Bats technology and is targeted for October 7, 2019. The C1 Open-Close file specification will change when the migration is completed, to see file specification for the before and after, please click here.
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.
Volatility skew data allows users to analyze relative option pricing levels over time series by comparing “virtual” option strikes with identical time to maturity and levels relative to spot. Our Volatility Skew files show the implied volatility levels of virtual options expiring at constant maturities, with option strikes defined by either moneyness (% from spot) or by option delta. These files allow for more appropriate comparison of implied volatility levels over time. LiveVol volatility skew data is provided with either moneyness increments (5% steps from spot from 0-60%, with additional values at 2.5% from spot) or delta increments (5 delta increments for both calls and puts). Standard maturity periods range from 30 to 360 calendar days. An auxiliary set of skew index data will be provided with each purchase. Skew indexes represent a measure of option skew by symbol and maturity for a particular day. Delta skew data is used to generate the skew index metrics: for example, SKEW90 represents the (IV of 25 delta put – IV of 25 delta call)/(50 delta call IV) for virtual options expiring in 90 days.