What happened

Shares of Endologix (OTC:ELGX.Q) were down 37% on Friday after the medical device maker announced disappointing earnings at market close on Thursday. Specifically, revenue decreased 7.9% year over year due to lower U.S. sales of AFX, its endovascular system to treat abdominal aortic aneurysms, and softness in Latin America.

So what

The good news is that sales of Endologix's Ovation abdominal stent graft are growing in the U.S. and AFX sales are still growing in Japan. Unfortunately, it's just not enough to make up for slumping U.S. AFX sales.

Man in a white v-neck shirt clutching his chest

Image source: Getty Images.

Management lowered its 2018 guidance substantially and now expects revenue in the range of $145 million to $155 million, compared to the previous range of $170 million to $180 million. On the earnings line, Endologix now expects to lose between $1.04 to $1.12, a bigger loss than the previous range of $0.89 to $0.95.

Seeing the writing on the wall, management has decided to restructure to cut costs based on its lower revenue, but it'll take a while to get expenses in line with the new revenue.

Now what

Revenue growth could resume with the launch of its pipeline products Alto, an abdominal stent graft system, and Nellix ChEVAS for abdominal aortic aneurysms with complex anatomy. But Alto isn't scheduled to launch in the U.S. until next year and Endologix is still working with the Food and Drug Administration on the design of a clinical trial for Nellix ChEVAS that won't start until next year.

If management can cut costs and right the ship, now could be a good time to buy shares of Endologix at a discount. But it comes with risk that a turnaround could take longer than hoped and there are so many other medical device makers to choose from.

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