Portfolio Variance Model

Description
It can be simple to calculate portfolio variance when you have two assets. However, when you're given 10, 15 or even hundreds of assets - it is a different story.

The sample spreadsheet below has 6 assets, with given respective standard deviation and correlation.

With the given values, we can calculate the portfolio volatility with any set of weights, additionally to calculating the sharpe ratio.

With the spreadsheet, we can see how values change according to different risk variables and returns, as well as also being able to calculate an efficient portfolio (this is for you to try out!)

- Risk Prep & Mukul Pareek, 2009