This gives you an good idea about how the collective market is unsure about its direction.
A week ago, the auto parts stores were slammed and AAP's stock price shrunk like a withering violet. From my perspective, I think it was a good "correction" for the auto parts stores sector. PE's, like many sectors at this market point, were getting way too high. Taking a good bit of "wind out of the sails" is not necessarily a bad thing. It keeps the sheet from ripping!
The market often goes to extremes and, in doing so, creates opportunities where smart and behaviorally grounded investors can either scoup up great values or dump those over priced securities.
While often it is difficult to tell what is a stud and what is a dud, I find the best information to be a 5 to 10 year track record such as provided by S&P's analysis. Is management doing the right things long-term?
Valuing securities using excessive focus on the month, quarter or year is like assessing your day by a single hour during the day. Yes, we all have good and bad parts in any day, but shouldn't we focus on the totality of the day? Stocks are much the same.
How was your day?