I got a bunch of spreadsheets that download a bunch of stock data and play with them, but I don't think I have one that plots a portfolio where you pick the allocations among, say 30 stocks, and the resultant portfolio is plotted and ...
>You don't think?
Anyway, there's now one that looks like this:
Click on the picture to download the spreadsheet.
There's an Explain sheet that looks like this: