For historical betas use Bloomberg, located in the Margolis Market Information Lab (MIL) at the Business Instructional Facility (BIF).

• Type the company's ticker symbol.
• Then hit the EQUITY key.
• Type BETA.

Also go to WRDS, available through Business Information Services. 

• Click on CRSP
• Select Indices and Deciles
• Select Portfolio Assignments
• Step One: Choose a Year-end Beta Assignment
• Step Two: Choose a Date Range
• Step Three: Enter a Ticker Symbol
• Step Four: Choose Beta Value (BETAV) and Date
• Submit your request
• Betas are available back to 1962

To inquire further please contact: bis@library.illinois.edu

For betas dating before 1997, see Value Line in microform:

• MFICHE 332.605 VALE in Oak Street (going back to 1980)
• FILM 332.605 VAL in the History, Philosophy, and Newspaper Library (1953, 1969-1979)

Some of these databases are reserved for University of Illinois faculty and student use for academic purposes only. To inquire further, please contact: bis@library.illinois.edu