Home
Biography
Curriculum Vitae
Working Papers
Data Library
  Benchmarks
  U.S. Research Returns
  U.S. Research Breakpoints
  U.S. Book Equity Data
  International Research Returns
Consulting Relationship
Fama / French Forum
Contact Information
 

Detail for 32 Portfolios Formed on Size, Operating Profitability, and Investment

Monthly Returns:   July 1963 - September 2024
     
Annual Returns:   1964 - 2023
     
Construction:   The portfolios, which are constructed at the end of each June, are allocated to two Size groups (Small and Big) using NYSE median market cap breakpoint. Stocks in each Size group are allocated independently to four OP groups (Low OP to High OP for fiscal year t-1) and four Inv groups (Low Inv to High Inv for fiscal year t-1) using NYSE quartile breakpoints specific to the Size group. OP for June of year t is annual revenues minus cost of goods sold, interest expense, and selling, general, and administrative expenses divided by book equity for the last fiscal year end in t-1. Inv for June of year t is the change in total assets from the fiscal year ending in year t-2 to the fiscal year ending in t-1, divided by t-2 total assets.
     
    Please be aware that some of the value-weight averages of operating profitability for deciles 1 and 10 are extreme. These are driven by extraordinary values of OP for individual firms. We have spot checked the accounting data that produce the extraordinary values and all the numbers we examined accurately reflect the data in the firm's accounting statements.
     
Stocks:   The portfolios for July of year t to June of t+1 include all NYSE, AMEX, and NASDAQ stocks for which we have market equity data for June of t, (positive) book equity data for t-1, total assets data for t-2 and t-1, non-missing revenues data for t-1, and non-missing data for at least one of the following: cost of goods sold, selling, general and administrative expenses, or interest expense for t-1.

 

 

 

 

Copyright Eugene F. Fama and Kenneth R. French