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 building products maker Gibraltar Industries (NASDAQ:ROCK) jumped 10% today, after reporting earnings.

So what: Fourth-quarter revenue rose 1%, to $172.6 million, in-line with estimates. On the bottom line, earnings per share of $0.05 were $0.02 better than estimates, and that was enough to push the stock higher.  

Now what: Management is very optimistic that earnings will continue to improve in 2013 as industry conditions improve, and restructuring charges subside. Still, shares are trading at 19 times forward earnings estimates, and the company has a long way to go living up to those expectations. The fourth quarter was good, but I'd like to have better results in the bag along with more growth before jumping into this stock.

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Fool contributor Travis Hoium has no position in any stocks mentioned. You can follow Travis on Twitter at @FlushDrawFool, check out his personal stock holdings, or follow his CAPS picks at TMFFlushDrawThe Motley Fool has no position in any of the stocks mentioned. 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.