NOV is trading at $19.32, down 6.02% after its Q3 release; the driver of the after-hours decline is unconfirmed. - NOV released Q3 results after the October 27 close: revenue was $2.23 billion and EPS was $0.25, in line with expectations; revenue beat consensus. - Bookings were $577 million, and the book-to-bill ratio was 91%; Q4 revenue is expected to be roughly flat year over year. - The after-hours decline followed the release despite broad market gains.