← Search Journal of Finance Vol. 26 No. 5 1971 Portfolio Analysis. Donald L. Tuttle; Jack Clark Francis; Stephen H. Archer DOI10.2307/2326105 Volume26 Issue5 Pages1185 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 ✓