Stock Universe

Hi Ivann, 

How to upload photo here from my desktop or phone? I select the photo, but I can't upload. 

Separately, when doing the backtest I click "select stocks" and when I click "all stocks", apparently some of the stocks are not selected. Please check. 

They are the most liquid and popular stocks from the S&P 500 with a good spread across multiple sectors. Hence they were chosen to form the stock universe.

How do you decide which are the 130 stocks to be selected? 

On your desktop or mobile you can just copy and paste the image directly into this text box. 

And yes when you click all stocks it will select around 130 stocks. Maximum number of stocks is limited to 130 for now for any backtest because of server requirements.