Here is a Stockcharts chart of AAPL with the Elder Impulse bars that show momentum confirming with the uptrend in green or non confirming when the bars turn blue. It is very good for giving a heads up on a loss of momentum. But like Nat Gas that is in a severe bear market AAPL is in a severe bull trend so the corrections are mild due to the strength of the trend. The CCI 20 once above +200 is also a warning of being very overbought as well. And the RSI of any length has been and continues to be very overbought. Tough to go counter trend under such a strong trend intact. See link to chart bottom left.