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Data Subscriptions

Our end-of-day option quotes file actually provides two snapshots of market quote and size, one at 15:45 and another at the market close (market closing time is product dependent). Summary trading data is also included in the files. The first, last, lowest and highest trade in every series, as well as, the total volume, VWAP and open interest. Sign up for a one month or one year subscription and receive a daily delivery of your files via our FTP site. 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.
Our end-of-day option quotes witch 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. Sign up for a one month or one year subscription and receive a daily delivery of your files via our FTP site. 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.

Select your own custom interval from 1 minute to End-of-day, NBBO market quote and size are captured in every snapshot along with open, high, low, close and trading volume. Underlying bid and ask prices are included at each interval for your reference. Covers U.S Stock, ETF, and Index securities with listed options.


In addition to OHLC, Volume, and NBBO markets at each interval, you may select and include the following:

  • Calcs: Midpoint Implied Volatility, Delta, Gamma, Theta, Rho*
  • BBO of each individual exchange*
  • Open Interest: Start-of-day Open Interest for each option (Optional)
*Base order must include at least 1 selection between Calcs or BBO of Each Exchange.


* Delivery Time: “Intraday” deliveries are posted to the FTP account approximately 15 minute after a given snapshot is recorded (Example: A 9:45AM snapshot will be posted to FTP at around 10:00 AM). Nightly deliveries are posted to the FTP account overnight.


Historical data back to 2004 may be purchased separately: Options Intervals

Our option trades files have the supporting information needed to provide context to trading activity. Included with each trade is the trade price and size, the exchange where the trade printed, the NBBO quote and depth, the underlying bid and ask, and each of the individual exchange markets. Sign up for a one month or one year subscription and receive a daily delivery of your files via our FTP site. Trades from Global Trading Hours (GTH) will be included effective February 5, 2020. GTH trades will be signified by a time stamp between 3:00 am ET and 9:15 am ET. At this time only ^SPX and ^VIX trade during GTH.
Our option trades files have the supporting information needed to provide context to trading activity. Included with each trade is the trade price and size, the exchange where the trade printed, the NBBO quote and depth, the underlying bid and ask, and each of the individual exchange markets. With the addition of our Calcs data, you receive the implied volatility and the calculated delta of the trade. Sign up for a one month or one year subscription and receive a daily delivery of your files via our FTP site. Trades from Global Trading Hours (GTH) will be included effective February 5, 2020. GTH trades will be signified by a time stamp between 3:00 am ET and 9:15 am ET. At this time only ^SPX and ^VIX trade during GTH.

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

Open-Close data is a volume summary file for trading activity on the BZX 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 BZX. 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 Exchange Fee Schedule.


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


Open-Close subscriptions are also available for: C1, C2, and EDGX


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

Open-Close data is a volume summary file for trading activity on the C2 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 C2. 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 Exchange Fee Schedule.


To purchase historical data, please see Open-Close C2 Historical


Open-Close subscriptions are also available for: C1, BZX, and EDGX


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

Open-Close data is a volume summary file for trading activity on the EDGX 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 EDGX. 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 Exchange Fee Schedule.


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


Open-Close subscriptions are also available for: C1, BZX, and C2


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

Cboe Hanweck Borrow Intensity Indicators describe constant maturity synthetic lending rates derived from real-time option analytics. Borrow Intensity Indicators are a proprietary calculation based upon implied borrow, enhanced with machine learning using characteristics including relative liquidity and term in order to create constant maturities of 45, 60, 90, 180, and 360 days.


Borrow Intensity Indicators may enhance:

  • Equity trading strategies
    • Higher frequency and timeliness than equity risk model short interest factors
  • Securities lending price discovery
    • Informs on levels and trends in overnight stock-borrow loan rates, highlighting rising shorts or other conditions in the collateral market such as persistent mildly hard-to-borrow securities

Borrow Intensity Indicator Attributes:

  • Includes:
    • Securities underlying US listed options (approximately 4,000 symbols)
    • Raw and smoothed form
    • Confidence measures supporting interpretation for every observation
  • Availability:
    • Current: 20 minute intervals, intraday
    • Historical: Back to 2010 (Sold separately)
  • Granularity:
    • Milliseconds
  • Format:
    • CSV Files
  • Delivery Method:
    • SFTP

For the file specifications, please click here
For the methodology overview, please click here

If you would like to purchase a historical backfill of this data-set, please order it here: Borrow Intensity Indicators