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 equipment maker OYO Geospace (Nasdaq: OYOG) jumped 10% today after the company released earnings.

So what: Revenue rose to $50.7 million in the first quarter from $30.8 million last year, blowing by analyst estimates of $38.25 million. Earnings per share also roared past estimates of $0.97 and hit an astonishing $1.38 per share.

Now what: Seismic products were strong in the quarter, but management said marine and reservoir products are what really drove the surprise results. And even after growth like we saw this quarter, this Motley Fool Hidden Gems pick has plenty of room to move higher. I am buying the move today and think the company's history of crushing earnings estimates will reward shareholders in the long run.

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