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Location: Documentation » US Stock and Indices Databases » Data Structures

 

Header Identification and Summary Data - header

Header Identification and Summary Data is a set of variables, in a CRSPAccess stock database using CRSP C access functions, that identify an issue and summarize its classification. There is no time component to the header data so the data are valid the entire range of the issue. Header Identification and Summary Data contains the most current information on the issue maintained in the file. There is only one header structure per issue for any data iteration. Note that Ticker Symbol - Header only contains tickers for active securities.

Primary Permanent Identifiers

PERMCO
PERMNO

Secondary Permanent Identifiers

CUSIP - Header
NASDAQ Company Number
NASDAQ Issue Number

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Security Date Ranges

Begin of Stock Data
End of Stock Data

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Most Recent Header Identification and Summary Data Information

 

 

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Most Recent Listing Information

Delisting Code - Header
Traing Status - Header

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