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Mackovic frontier line

in explantion of Mackovic frontier lines, each stock is given a Risk and Return. then, we can make a portfolio which has least risk and highest return.

but i do not know what is Risk in this context. pls, help me. Thanks.

"Wiley's prep material was a huge part of my success... really keeps me motivated and charging ahead." - Lindsey G., USA

I believe you mean Markowitz, not the football coach.

The risk is denoted by sigma (total risk). 

Vancouver, B.C.

"The society that separates its scholars from its warriors will have its thinking done by cowards and its fighting by fools." -Thucydides