%0 Journal Article %A Michael R. Asay %T Implied margin requirements on options and stocks %D 1981 %R 10.3905/jpm.1981.408803 %J The Journal of Portfolio Management %P 55-59 %V 7 %N 3 %U https://jpm.pm-research.com/content/iijpormgmt/7/3/55.full.pdf