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Note: WRDS requires a username and password. You can register when you first attempt to log in.

Developed and maintained by the Wharton School of Business, Wharton Research Data Services (WRDS) provides a uniform gateway to financial, economic, and marketing data from various sources. It is best known for its holdings of historical financial data from CRSP and COMPUSTAT, and the library subscribes to both these databases as well. Standard and Poor's COMPUSTAT data is primarily based on company financials, many of which go back twenty years, and CRSP, the Center for Research in Security Prices, maintains comprehensive, historical stock market data. WRDS is unique as it provides users with the ability to query various data sets so that they can output and save in a variety of formats.

To determine which data sets the library has access to, go to the front page of WRDS and there you will find lists of which databases LND subscribes to in the left-hand column. Two of the most-used datasets are COMPUSTAT and CRSP.

COMPUSTAT: Company and market data from Standard and Poor's.

Standardized data - S&P standardizes company supplied information so that all the data items for various companies are comparable.

Restated data - annual and quarterly reports contain restated data to account for mergers and acquisitions.

Unique identifiers - COMPUSTAT uses unique identifiers to provide a historical perspective of a company's development.

COMPUSTAT North America includes publicly traded companies in the U.S. and Canada. It provides more than 340 annual and 120 quarterly Income Statement, Flow of Funds and supplemental data items on more than 10,000 active and 9,700 inactive companies
  • Industrial Annual: company information from company annual reports
  • Industrial Quarterly - company information from quarterly reports.
  • Price, Dividends and Earning - security pricing data from company balance sheets.
  • Segments - financial data on business segments in diversified corporations.
COMPUSTAT Global & EMDB databases provide information on international companies in over 80 countries, as well as information and statistics on stock markets in developing countries.

CRSP: the Center for Research in Security Prices (CRSP), from the University of Chicago Graduate School of Business, maintains security data for the NYSE, AMEX and NASDAQ stock markets.
  • Unique identifiers -CRSP has developed unique security identifiers in order to trace stocks over time.
  • Daily stocks - the library subscribes only to the daily stock data which goes back to 1962.

CUSIP: stands for the Committee on Uniform Security Identification Procedures and the 9-digit alphanumeric security identifiers that they distribute for all North American security issues (stocks and bonds). The CUSIP distribution system is owned by the American Bankers Association and operated by Standard and Poor's.

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