Presented here is a weekly chart of $AAPL. Price is currently sitting on top of an upward trendline dating back to its 2018 low, and the anchored vwap (orange) from the covid low (this is the avg price investors are cost based in if purchasing the stock each day from that starting point).
On the daily chart here, we see AAPL 0.00%↑ staring at a retest of a its June low of $129.04. Break below these reference points is important information given the weighting Apple has in many indices such as the SPY 0.00%↑ and QQQ 0.00%↑.
They also provide tradable price points based on whether the stock bounces or breaks.