This has been happening on the January monthly for quite awhile. If anyone wants to search back, you can see that I posted about this at least twice earlier, probably a month or more ago now. It didn’t make any sense then, and might not now……..but…….
What if this is a slight-of-hand maneuver to actually BUY shares from the MM, avoiding having the purchase show up during regular trading? Instead it shows up after hours, at closing cross, whatever? So, sell 20,000x DITM 250 strike put for $136.85, no time value left so it’s assigned immediately or overnight, and voilà, you just bought 2M shares at $113.15. Easy peasy, no big spike in buying during the day to drive up the price. The MMs create the shares (per their Madoff exemption as
@Artful Dodger has been saying).
Check out MaxPain website, massive numbers of contracts traded TODAY, some >80,000, at lots of DITM strikes, with very small number of contracts showing as OPEN. How is that possible, unless they were sold, THEN immediately exercised? I eyeball at least 350,000 DITM contracts traded just today (35M shares)!
Edit: here’s one of my previous posts:
Here
Maybe somebody should sell a DITM CSP tomorrow and see if it’s immediately exercised or if they wait until overnight. Hmmmm.