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 U.S. Silica Holdings (NYSE:SLCA) jumped as much as 10% today after the company reported earnings.

So what: Demand for sand used in fracking jumped 45% year over year in the first quarter and helped drive a 47.2% increase in revenue to $180.1 million. Net income only increased 6.3% to $18.4 million, or $0.34 per share, which was actually a penny behind estimates.  

Now what: Management said demand for fracking sand will outstrip supply this year. That gave the company confidence to say that full-year EBITDA will be at the high end of the range of $180 million to $200 million. At 17.5 times next year's estimates, shares aren't cheap, but I think there's still room to run higher as demand picks up in U.S. Silica's end markets.

This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium advisory service. We’re motley! Questioning an investing thesis -- even one of our own -- helps us all think critically about investing and make decisions that help us become smarter, happier, and richer.