I would like to ask will the self.Securities be updated when security is removed? In the attached backtest, I add APPL in the first day and then I remove it in the second day. The length of self.Securities keep as 1. Should it become 0?


After I remove APPL, when I use self.SetHoldings(), should I hit the error "There was an error in a scheduled event EveryDay: 9.5. The error was KeyNotFoundException : This asset symbol (APPL 2T) was not found in your security list". but I didn't see this error, why ?

Thank you very much.