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 CARBO Ceramics (NYSE: CRR), which makes materials used for fracking oilfields, look like black gold themselves today: An overnight jump of as much as 19.9% inspired the highest single-day trading volume in at least the last two years.

So what: Wall Street had expected CARBO to report $1.02 of first-quarter earnings on revenue of $130 million, but it got $1.30 of GAAP profits on a staggering $151 million revenue haul. That's not just beating estimates but crushing them with authority.

Now what: Demand for CARBO's products is high because you need 'em for exploring "unconventional" oil and natural gas resources. The customer list includes industry titans such as Halliburton (NYSE: HAL) and Schlumberger (NYSE: SLM), and CARBO's sales seem constrained more by production capacity than by demand. This stock has nearly doubled in the last six months and should continue to thrive as long as hard-to-reach oil and gas makes economic sense.

Interested in more info on CARBO Ceramics? Add it to your watchlist.