That far out, the strikes are $5 apart, not $1. There's also no Dec 31 expiration; 15Dec23 is the closest...
I was going to mention you in this thread, but did not want to drag you into what I thought seemed an outrageous trade. Based only on intuition, mind you. BECAUSE I WILL NEVER UNDERSTAND OPTIONS!
Was he talking ITM, ATM, or OTM strikes for 2023? That's an extra dimension I always forget about!

