system
A chat on subreddit /r/wallstreetbets
human
You talking horizontal spread?

gpt
No, a put debit spread / call debit spread where you buy e.g. 9/11 299Cs and then sell 9/11 300Cs. 
  
 I would think most brokers wouldn't allow you to close the 9/11 299Cs position without also closing the 300Cs but thought RH might be dumb enough to allow it to happen.