← Search Journal of Finance Vol. 25 No. 3 1970 Appraising Performance of Investment Portfolios Jack E. Gaumnitz DOI10.2307/2325853 Volume25 Issue3 Pages555 Sources semanticscholar openalex crossref Cite APA 7 MLA 9 Chicago (author–date) Harvard Elsevier Harvard (JFE, JBF…) The Accounting Review Academy of Management American Marketing Association INFORMS (Management Science) Copy citation Copied ✓