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Historical Data

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 (Subscription)
    • Historical: Back to 2010
  • 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 subscribe to ongoing updates of this data-set, please order the Subscription product here: Borrow Intensity Indicators - Subscription
CFE OHLC data is an end of day summary file that contains the volume traded, open interest, open, high, low and last sale price along with last bid and last ask of each VIX futures contract obtained from the Cboe Futures Exchange (CFE). The historical data is available by month back to April 2004.
Historical end of day quotes and trade summary for S&P 500 (SP) and e-mini futures (ES) from the Chicago Mercantile Exchange.

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. For pricing, please see “LiveVol Fees” in the Exchange Fee Schedule.


For an ongoing subscription, please see: Open-Close BZX - Subscription


Open-Close data is 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 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. For pricing, please see “LiveVol Fees” in the Cboe Exchange Fee Schedule.


For an ongoing subscription, please see: Open-Close C1 - Subscription


Open-Close data is 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 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. For pricing, please see “LiveVol Fees” in the Exchange Fee Schedule.


For an ongoing subscription, please see: Open-Close C2 - Subscription


Open-Close data is also available for BZX, C1, and EDGX


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