CRSP (Center for Research in Security Prices) / WRDS

CRSP (Center for Research in Security Prices) maintains the most comprehensive and most accurate information for securities listed on the NYSE, AMEX and NASDAQ exchanges. Our subscription contains the following databases: 

• CRSP 1925 US Stock (distributed annually) 
• CRSP 1925 Indices (distributed annually)
• CRSP 1925 US Treasury Bonds (distributed annually)
• CRSP US Mutual Fund Database (distributed quarterly)
• CRSP History Intraday Quarterly (distributed quarterly)
• CRSP/Compustat Merged (distributed annually)

Balances, price and trading information from Compustat and CRSP packages can be merged using a verified link from the CRSP/Compustat Merged database. 

Access is provided through Wharton Research Data Services (WRDS).