Hi QC community,

I am new to QC and trying to do develop my algo here. The first question I am having now is how to set/restrict the universe from a list of stock symbols from an extenal file. For example:

CSV (external file):





What I want is on 2015/10/01, the algo knows it can only trade AAPL and on 2015/10/02, both AAPL and MSFT can be traded by the algo.


thanks a lot!