US Options Security Master

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The US Options Security Master file is a single data file cataloging all the listed and delisted OPRA options which include stocks, ETFs, ETNs, Indexes, etc from 2012 to the present. Each entry in the file provides summary information such as option type, settlement type, underlying ticker and type.

This Master File is organized based on algoseek's unique security identifier called algoseek ID (ASID), which remains consistent during specific option root symbol life.

This Master File is updated daily. A lookup file is available for converting an ASID to the option ticker and to the underlying ticker.