Splitting S&P into two random universes of stocks

Research
1

Hi I want to split S&P into two random (but fixed) universe of stocks. How can I do that? How can that be done for any universe?

The idea is to use separate “random” universe to test for robustness of the model

thx

2

Use EvenID=TRUE for one universe and EvenID=FALSE for the second universe. Put the rule either in a custom universe or as a buy rule.
Steve

3

Thanks! thats perfect