Hey Guys, 

I'm new to QC and also coding in general. Right now I'm trying to create a dynamic universe that selects stocks based on pre market gaps (i.e. >10% gap). After this I want to daytrade these stocks based on amount of gap. I'm struggling with creating a dyn. Universe that select stocks based on pre market data. Also I'm struggling with daytrading all stocks if they fullfill the requirements in the OpeningBar function. In my backtests even with the for loops my algo just trades the last ticker in the self.ticker list. 

I would appreciate someone that could help me with my issues a lot! I also read other entries here on QC but I was not able to figure it out. Often I see that the Dynamic Universe just selects stocks based on for example PE-Ratio and rebalances the collection after a given period. But I need a collection and then every stock in the collection is checked if they fulfill the if statements in the OpeningBar function. 

Thank you very much in advance! Btw. I code in Python