system
A chat on subreddit /r/wallstreetbets
human
I am still not sure what happened to OP. Please correct me if I am wrong. 
  
 So lets say OP sold a call expiring 19th and bought a call expiring 21st  - at same strike? So it was a debit vertical call? He got assigned to his sold call. He was expecting bulls, but SPY dropped because of dividend, and his bought call got OTM? 
  
 &amp;#x200B; 
  
 That strategy doesnt sound right...?

gpt
Sounds like he sold a call vertical with both legs expiring on the 21st. The short strike was exercised on the 19th. He waited until the 21st, looking to exercise his long call automatically to cover but it went out of money. So he bought stock to cover instead. OP's point is invalid because dividend is priced in. It's amazing that so few people here caught it, but it's still a good lesson on dividend risk. 
  
 It reads like a riddle. That's the best I can make of it.