Hi there, I started tinkering with options earlier this year, I started with straight calls and now I'm trying out different types of spreads. Last month I initiated a calendar spread and the stock rallied soon after. With roughly three weeks to go until the short call's expiration, it was trading at parity. According to an Option's book I have, early assignment is to be avoided, so I became nervous and closed the spread, luckily it was a small loss. However, I recently read elsewhere that early assignment isn't necessarily a bad thing. I really didn't want to closed the spread for I believed the underlying would come back down, which it has, and is currently at the strike a week before expiration, could've been looking good right now. Anyway, as in the title, how bad is getting assigned early?