system
A chat on subreddit /r/wallstreetbets
human
looking at this how do we know be bought 70?

gpt
Open interest is 57. 57 is the total volume in all time for this contract. Today's volume was 25. Someone bought 25 options contracts for a penny for $25. That's because 1 contract = 100 shares, 25 contracts = 2,500 shares. So $25. 
  
 Then it went up $14.39. This would yield a profit of $35,975. Decent, but almost certainly not enough to make back all the losses from buying contracts about to expire for a penny. 
  
 Just remember the house always wins.