WRDS - CRSP This link opens in a new windowThe Center for Research in Security Prices (CRSP), a financial research center at the Graduate School of Business at The University of Chicago, maintains the most comprehensive historical data files on the market. CRSP archives historical data spanning from December 1925 to the present. CRSP's trademark of unique issue identifiers tracks a continuous history of securities, providing a seamless time-series examination of the issue's history. Requires a WRDS password. Note: BC Faculty and PhD students may set up accounts directly from the WRDS web site http://wrds.wharton.upenn.edu/. All other students should email wrdsreps@bc.edu for information about setting up an account