What happened

Shares of Dexcom (NASDAQ:DXCM), a medical device maker focused on diabetes, surged 23% as of 11 a.m. EDT on Thursday. The huge jump is attributable to the release of second-quarter results that smashed expectations and featured a huge boost to guidance.

So what

Here's a review of the key figures from Dexcom's second quarter:

  • Revenue jumped 42% to $242.5 million. For perspective, Wall Street was only expecting revenue of $204.9 million, so the company handily beat estimates.
  • Non-GAAP net loss was $9.2 million, or $0.10 per share. That was also much better than the $0.18 loss that market watchers were expecting.
WOrd diabetes on a keyboard

Image source: Getty Images.

The better-than-expected results also allowed management to significantly boost its guidance for the year. The company now expects full-year revenue of about $925 million. That's much higher than its prior range of $850 million to $860 million.

Given the significant beat-and-raise, it isn't hard to figure out why shares are flying high today.

Now what

Dexcom's second-quarter results should go a long way to silence the doubters who believed that Abbott Laboratories(NYSE:ABT) FreeStyle Libre glucose monitoring system was going to put a stop to the company's huge growth. Instead, Dexcom just reported an acceleration in its revenue growth rate, which suggests that the total market is large enough for both companies' products to coexist. 

Looking to the future, Dexcom's partnerships with Tandem Diabetes Care and Insulet should keep on serving as catalysts to drive continued adoption. In other words, investors have plenty of reasons to believe that this company's growth engine is still warming up.

Brian Feroldi has no position in any of the stocks mentioned. The Motley Fool recommends Insulet. The Motley Fool has a disclosure policy.