RE:RE:RE:RE:RE:RE:RE:RE:RE:RE:SOMEONE JUST SOLD 20M SHARES AT CLOSING??To elaborate some more, Sept 16th was one of the quadruple witching events that occur usually 4 times a year.
This is when stock index futures contracts, single-stock options, options on index futures, and stock index options expire.
The movements have already happened awhile ago.