Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.

What: Shares of solar and LED equipment company GT Advanced Technologies, Inc. (NASDAQOTH:GTATQ) surged 11% today after its quarterly results and outlook impressed Wall Street.

So what: GT has soared in recent months on excitement over its sapphire glass co-development deal with Apple, and today's Q4 bottom line -- adjusted loss of $0.26 per share topped the consensus by $0.10 -- coupled with solid full-year guidance only reinforces those good vibes. In fact, management noted that its arrangement with Apple is "progressing well," prompting traders to buy into the story on the hopes of even more good news ahead.

Now what: Management now sees full-year adjusted EPS of $0.02-0.18 on reaffirmed revenue of $600 million-$800 million, versus Wall Street's view of $0.07 and $691.8 million. "The many diversification and investment seeds we have planted over the last several years in the LED, power electronics, advanced solar and industrial markets are expected to begin to bear fruit over the next 18 months," said President and CEO Tom Gutierrez. "We are seeing significant interest in our new products and now expect equipment orders from these initiatives to be received during the latter part of 2014, with meaningful revenue recognition beginning in early 2015." Of course, with the stock now up a staggering 430% over its 52-week lows, I'd wait for a much wider margin of safety before being exposed to GT's company-risking deal with Apple.  

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Brian Pacampara has no position in any stocks mentioned, and neither does The Motley Fool. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.