CRSP's Stock Database Spans 85 Years and 15 Business Cycles with Historical Market Data

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The Center for Research in Security Prices (CRSP), at the University of Chicago Booth School of Business (Chicago Booth), proudly announces the initial stock data release for 2009. This milestone now extends the renowned stock database to a span of 85 years. It builds on the landmark work of the founders - Professors James H. Lorie and Lawrence Fisher - who in 1960 set out to compile a database of all common stocks listed on the NYSE beginning with December 31, 1925.

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The Center for Research in Security Prices (CRSP), at the University of Chicago Booth School of Business (Chicago Booth), proudly announces the initial stock data release for 2009. This milestone now extends the renowned stock database to a span of 85 years. It builds on the landmark work of the founders - Professors James H. Lorie and Lawrence Fisher - who in 1960 set out to compile a database of all common stocks listed on the NYSE beginning with December 31, 1925. Approaching 50 years since inception of the original research, and with over 500 academic, practitioner and government subscribers, CRSP has proven to be the standard for historical market data.

According to David Barclay, Chief Operating Officer of CRSP, "One of the many features conceived by the developers that makes CRSP data extremely powerful for professional researchers is the lifelong identifier assigned to each security. A CRSP PERMNO enables a subscriber to conduct seamless research across the history of the security even after a change has been made to its CUSIP, ticker symbol, or corporate name. For example, Sweets Company of America is found in the CRSP Stock Database on December 31, 1925. That same entity is also found in our database on January 31, 2009 under its current name - Tootsie Roll Industries. Our PERMNO links the 2 entities across this period with price history, returns, corporate action information and other data elements that are essential to in-depth research."

With over 28,000 active and inactive securities, the flagship CRSP Stock Database has long been considered to be the most complete, research-quality database available for US equity market data. CRSP continues to refine the data, as well as its quality controls, in order to ensure the highest degree of data integrity. CRSP's highly experienced Research Department commits extraordinary effort in the data analysis phase by applying thousands of computerized and manual validation checks through each stage of the process.

The database is further enhanced by CRSP's Data Analysts who resolve data issues from source providers by comparing sources, filtering on a large number of criteria, and making edits before releasing the data. "Whether the data is the current month, or decades old, our subscribers recognize the value of having CRSP data underpin their academic research, backtesting, or financial modeling. Having a trusted and recognized data source where data issues are researched and resolved prior to release, allows our subscribers to focus on research and analysis and to have confidence in their results," said Alan Myers, Director of Research for CRSP.

About CRSP:
The Center for Research in Security Prices is a research center at the University of Chicago Booth School of Business and has been an integral part of the academic and commercial world of financial and economic research since the early 1960s. CRSP's portfolio of stock, indices, mutual fund, treasury, and REIT market databases is relied on by academicians whose research and publications must withstand rigorous analysis for accuracy. Quantitative analysts in the commercial market depend on CRSP's historical depth and unrivaled quality in order to perform backtesting and modeling calculations. In the government sector, regulators and policy makers value CRSP's complete data sets as the basis for financial and economic research. For more information, please visit http://www.crsp.chicagobooth.edu or call 312.263.6400.

Contact:
Steven Sheehan - Director, Marketing and Subscriptions
Phone: 312.263.6160
Fax: 312.263.6088
Email: steven.sheehan (at) crsp.ChicagoBooth (dot) edu

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