CRSP provides header files for each CRSPAccess database. These name lists are useful for finding identifiers and name histories of securities when only partial information is known. The identifiers can then be used as input to other CRSP reporting utilities or programs. The files are fixed format text files and be accessed with system utilities or other tools.
Every stock database contains four files:
cheadfile.dat
Header list, one line per issue, sorted by PERMNO, with the fields PERMNO, PERMCO, CUSIP - Header, Company Name - Header, Ticker Symbol - Header, CRSP Exchange Code - Header, and price data range. (Note: SIC Code - Header may be included in a user-created header file using the crsp_stk_headall utility.
headfile.dat
Historical header list, one line per historical name, sorted by PERMNO and effective name date, with the fields PERMNO, PERMCO, CUSIP, Company Name, Ticker, CRSP Exchange Code, and effective range of name information. (Note: SIC Code - Header may be included in a user-created header file using the crsp_stk_headall utility.
psortbyp.dat
A PERMNO list of issues in the database; one PERMNO per line sorted by PERMNO.
headind.dat
An index description, setid, and INDNO of all index series and groups in the database.
CRSP provides the following search utilities for header files.
A. dstksearch
To search the daily data header files
B. mstksearch
To search the monthly data header files
C. dindsearch
To search the daily index header files
D. mindsearch
To search the monthly index header files
E. cst_search
To search the CRSP\Compustat Merged Database (CCM) current and historical header files
F. ncst_search
To search the CRSP\Compustat Merged Database (CCM) current and historical header files
G. crsp_show_db_info
To display parameters associated with a specific database
H. crsp_set_db_info
To change parameters associated with a specific database
Subscription Information
CRSP provides header files for each CRSPAccess database. These name lists are useful for finding identifiers and name histories of securities when only partial information is known. The identifiers can then be used as input to other CRSP reporting utilities or programs. The files are fixed format text files and be accessed with system utilities or other tools.
Every stock database contains four files:
cheadfile.dat
Header list, one line per issue, sorted by PERMNO, with the fields PERMNO, PERMCO, CUSIP - Header, Company Name - Header, Ticker Symbol - Header, CRSP Exchange Code - Header, and price data range. (Note: SIC Code - Header may be included in a user-created header file using the crsp_stk_headall utility.
headfile.dat
Historical header list, one line per historical name, sorted by PERMNO and effective name date, with the fields PERMNO, PERMCO, CUSIP, Company Name, Ticker, CRSP Exchange Code, and effective range of name information. (Note: SIC Code - Header may be included in a user-created header file using the crsp_stk_headall utility.
psortbyp.dat
A PERMNO list of issues in the database; one PERMNO per line sorted by PERMNO.
headind.dat
An index description, setid, and INDNO of all index series and groups in the database.
CRSP provides the following search utilities for header files.