Why Glaukos Corp. Stock Sank 12.8% in September

After management decided to dial back revenue expectations for 2017, shares of Glaukos (NYSE: GKOS), a medical device maker focused on diseases of the eye, tumbled 13% in September, according to data from S&P Global Market Intelligence.

Glaukos' management team held an investor day in mid-September. Here's a review of the key takeaways from the presentation:

Wall Street responded to the downward guidance by deflating the company's share price.

Source: Fool.com