A close below 659 is an initial signal of a short-term top in Apple. A subsequent close back above 666 would negate the sell signal. A close below 648 would confirm at least a short-term top in Apple requiring a close back above 666 to restore any immediate bullish outlook.

A close below 599 is an initial signal of at least an intermediate term sell signal in Apple. A close below 555 confirms an intermediate term top is probably in place.