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  • Asset Type: Options Remove
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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
Cboe FX Prints is a trades only file and reflects all trading activity for the currency pair on Cboe FX markets including transaction time, aggressor side, trade price and quantity. Available Currency Pairs.
Trades data on cryptocurrencies such as Bitcoin and Ethereum recorded by the Gemini Exchange. The offering is a sub-set of the Order Book product where a filter when the Event Type is a Fill has been applied. Auction data is not included. The currency pair symbols are formatted as CCY1CCY2 where prices are in CCY2 and quantities are in CCY1, the following pairs are supported:

Currency Pair Quantity currency Price currency
BTCUSD BTC USD
ETHUSD ETH USD
ETHBTC ETH BTC
ZECUSD ZEC USD
ZECBTC ZEC BTC
ZECETH ZEC ETH
Cboe LiveVol Implied Volatility Blends capture term structure and solve for expiration-specific and constant maturity implied volatilities encapsulated within the range of option expirations. Capturing the constant maturity volatilities helps traders visualize and track the behavior of volatility over time providing context to current market implied volatility. To build out our volatility blends we first solve for the at-the-money volatility of each expiration to capture the term-structure of the volatility. Next, using a cubic spline approach, we fit a curve to the term-structure. Using the fitted curve, we solve for the constant maturity (IV30, IV60, IV90, etc.) time periods offered in the file. *Constant maturity times that fall outside the range of expirations available for a particular symbol will be zero. This dataset is only available with end of day granularity.
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.
See every underlying trade in an underlying security. Trade price, trade size, trade condition, the trading venue and national best bid and offer are included in each record.

Reference Files:
Exchange ID Mapping: Exchange IDs
Trade Condition ID Mapping: Trade Condition IDs