CRSP (Center for Research in Security Prices)
CRSP provides security price, return, and volume data for the US stock markets dating back to 1925. Additionally, the data files include CRSP/Compustat Merged Database and US mutual fund data.
The Compustat subscription is financed by the Department of Finance at Aalto University School of Business.
Wharton Research Data Services. "WRDS" wrds.wharton.upenn.edu, accessed YYYY-MM-DD.
'Wharton Research Data Services (WRDS) was used in preparing [identify research piece]. This service and the data available thereon constitute valuable intellectual property and trade secrets of WRDS and/or its third-party suppliers.'
Access to WRDS is managed by Nikolas Breitkopf, contact via [email protected]