So I’ve been using a paper trading account to test out selling some vertical spreads. The problem is that I’m not really sure at what time they expire. I looked it up and of course everyone said that most contracts expire at the close of the market on the day of expiration, that being 4pm EST. The problem is that I waited until then and I didn’t end up getting the credit in my paper trading account. The paper trading account might be glitched or something but it’s very frustrating because I don’t want to have to try this on my normal account before I know if it works the way I expect it to. For reference, I was selling the SPY 304.5 call and buying the 305 call with an expiration on Wednesday (Oct 30), and at 4pm they were both OTM so I assumed that it would just put the credit in my account at that point. During after hours the 304.5 call did actually go in the money though so I’m not sure if that was why. I also made the transaction on the same day as the expiration (Oct 30) if that may have something to do with it.