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Detail for 25 Portfolios Formed on Book-to-Market 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 the intersections of 5 portfolios formed on the ratio of book equity to market equity (BE/ME) and 5 portfolios formed on investment (Inv). BE/ME for June of year t is the book equity for the last fiscal year end in t-1 divided by ME for December of t-1. The BE/ME breakpoints are NYSE quintiles. Investment 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. The Inv breakpoints are NYSE quintiles.
     
Stocks:   The portfolios for July of year t to June of t+1 include all NYSE, AMEX, and NASDAQ stocks for which we have ME for December of t-1 and June of t, (positive) BE for t-1, and total assets data for t-2 and t-1.

 

 

 

 

Copyright Eugene F. Fama and Kenneth R. French