I am glad AAPL is all over my portfolio (and even more concentrated in my kids'), but it looks like the dash over $500 prompted some people to take profits.
I am not suggesting selling it necessarily, particularly if you don't have it in a tax advantaged account, but IMO it is awfully pricy here.
Yeah, I have a few like that, stocks that have marched well past what seems reasonable valuation.
Every time I think about selling (or at least trimming) AAPL, MSFT, MA, even boring consumer staples and utilities like MKC and NEE, I can't bring myself to do it. And every time, I've been rewarded.
Obviously, this can't keep going on forever. The crash could be painful.