Historical Market Cap
The Historical Market Cap dataset provides a clean, point-in-time view of equity size over time.
It tracks historical shares outstanding by ticker and date, allowing users to reconstruct market capitalization using information available at each moment in time.
The dataset is designed to support survivorship-safe research, universe construction, and market cap–based analysis without forward-looking bias.
Use the sections below to learn:
what the dataset represents and how it’s constructed
how to discover available tickers and valid date ranges
how to query historical market cap data correctly
the structure and meaning of each field
how and when the data is updated
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