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 security software specialist Sourcefire (Nasdaq: FIRE) shot up by as much as 15% today after the company reported earnings yesterday.

So what: First-quarter sales jumped 50% to $46.3 million, which turned into an adjusted profit of $0.11 per share. Both top and bottom lines posted a healthy beat compared to the $41.6 million in revenue and $0.08 in per-share profit that the Street was expecting.

Now what: International sales stole the show, growing 87% in the quarter, far outpacing domestic commercial growth of 28%. Next quarter, Sourcefire expects revenue to be between $46.5 million and $48.5 million, with adjusted earnings per share in the range of $0.12 to $0.14. UBS even issued a note that Sourcefire is a strong candidate to be acquired by a larger competitor, expecting it would fetch between $53 and $60 per share.

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Fool contributor Evan Niu holds no position in any company mentioned. Click here to see his holdings and a short bio. Motley Fool newsletter services have recommended buying shares of Sourcefire. The Motley Fool has a disclosure policy.

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