Hey guys, 

How do you sell half in a shorting position? These are my lines of code, but the second line seems to be actually using my profits to buy half of what I can buy as opposed to exiting half of my shorting position and taking that profit. 

self.MarketOrder(self.symbol.Symbol, -(shares_to_buy)) # Enters here.

self.MarketOrder(self.symbol.Symbol, (held_stocks // 2)) # Supposed to sell half on targets instead of buying.

What am I doing wrong?