Implemented the Porfolio optimization using Markowitz Model on VOO(NYSE) and BLV(NYSE) initally in Google Sheets and later extending the concept for several assets in Python.
Google Sheets implementation of the above model for two assets can be found here: Click Here
Python implementation of the above model for several assets can be found here: Click Here
The image below shows the Mean Return(Reward) vs Standard Deviation(Risk) plot with Efficient Frontier: