This is how i'm figuring out the measured move for those who maybe wondering. One of the guidelines for an impulse structure is if wave 3 is the extended wave then wave 1 tends to be equal in duration AND/OR magnitude of wave 5.
There is a gap fill at 382.75, measured move is slightly below that. Lets see if this plays out. By no means am I predicting anything besides utilizing the rule set and guidelines of Elliott Wave Principles.
Good Luck Traders!!