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Historical Data
Our end-of-day option quotes with Calcs file provides all of the fields in the end-of-day Option quotes file plus market implied volatility for each option, as well as, the greeks (Delta, Gamma, Theta, Vega and Rho). Implied volatility and Greeks are calculated off of the 1545 timestamp, since it is considered a more accurate snapshot of market liquidity than the end of day market. Effective February 5, 2020 on half trading days, the value in the "1545" column will be taken at 12:45 pm ET and the column name of 1545 will be unchanged.
File Layout: End-of-Day Option Quotes With Calcs Layout.
To purchase subscription data, please see: End-of-Day Option Quotes with Calcs – Subscription
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.
Select your own custom interval from 1 minute to end-of-day. Open, high, low, close, trading volume, VWAP, and underlying market (bid and ask) are included in each interval calculation.
MDR data is all quote updates and trade data captured by Cboe’s internal data retrieval systems. MDR data is offered in the following Cboe exclusive indices: ^VIX, ^SPX and ^OEX. The amount of history available of the data varies by symbol; ^SPX from January 1990, ^OEX-January 1990 and ^VIX-March 2006. The MDR data will either delivered by SFTP.
Historical S&P 500 (SP) and e-mini futures (ES) trades from the Chicago Mercantile Exchange.
VIX index (spot) values are the intraday values of the index only. This data is available starting from January, 1992. The frequency of the VIX index values is every minute for data prior to 2004 and every 15 seconds, including milliseconds, from 2004 and after.