Good observation!
@jhm, do you have a butterfly at 370?
I spent considerable effort to build up a butterfly with Jun monthlies centered at 335 back when the stock traded at around 300. Tens of contracts... Then the stock shot past the upper leg at 350, and it was worth exactly what I paid for it (nothing). Fun times....
I should have sold off that position when the stock crossed 335 (it was 320 calls long, 335 calls short, 350 calls long) even tho the timing was less then optimal, rather than wait and have it become worthless a week later.