Since my last post on AAPL it's pushed up a little more, although in the context of the larger pattern from the Nov 2016 lows I still think it counts well enough as an impulse wave. With the spike from earnings we now have enough gyrations to suggest a reversal; a strong move back under 143.25 would be the 1st clue to support a move lower. If wave 3 has ended, wave 4 is likely to carry prices towards 133.00 - 128.00.
It stands to reason if AAPL breaks down, it should suggest the NDX follows due to the weighting of AAPL in the NDX, it is an important stock, although some other tech favorites will also need to follow. A 3 wave pullback on AAPL should align with the NDX pulling back in 3 waves for its respective 4th wave.