In this daily bar chart of Apple (AAPL) , above, we can see some signs showing us that AAPL has begun a correction. We still have time until the close, but we can see that prices are likely to make a "close below the low of the high day" which is a quick-turning reversal pattern I learned about 30 years ago on a fixed income trading desk.
We can also see that the On-Balance-Volume (OBV) line has turned flat this month even though prices moved higher. This is a bearish divergence. The 12-day price momentum study in the lower panel shows slightly lower highs from April, telling us that the pace of the rally has been slowing down and that can sometimes foreshadow a correction.
In the daily Point and Figure chart of AAPL, below, we can see that prices have broken to the downside and the software is now showing a potential downside price target around $345 or so.
Bottom line strategy: AAPL has not made a major top formation so consider this a shake out/correction. It will run its course and the longer-term uptrend will eventually resume.