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 materials company Headwaters Inc. (NYSE:HW) jumped 20% today after releasing earnings.

So what: Fiscal-first-quarter revenue was up 10.7% from a year ago to $165.6 million, well ahead of the $159.6 million estimate from Wall Street. The bigger surprise was a $0.05 per share profit, versus the expected $0.02 loss expected by analysts.  

Now what: Building product demand was strong with revenue up 21% from a year ago. The trend looks to continue with management upping fiscal 2014 EBITDA guidance to $130 million-$145 million from $125 million-$140 million. Keep an eye on the bottom line this year because Headwaters is just now swinging back to profitability and if these trends continue it could be a great value for investors.

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Travis Hoium has no position in any stocks mentioned. The 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.