So I sold my a covered call a few days ago and collected my premium. The call shows in "my positions" with a quantity of -1. The price of the underlying has risen, although it is still below the strike price. The option has gone up in value and is showing as a loss on my daily PnL. My question is why? I understand that if I were to buy to close the option right now that I would take a loss, but I'm not going to do that. I'm going to hold it til expiry and hopefully get assigned. So why is it showing as a loss? It's not like I have to give back money I collected on the premium. If a stock is at 50 and I sell a 60 call and at expiry the stock is at 55, I shouldn't have lost any money at all. Why is my PnL showing a loss? Am I just reading it wrong?