3-D printing has a massive opportunity to revolutionize the industrial manufacturing industry. However, a recent sell-off in the sector has sent the stock prices of many companies spiraling down during 2014.  ExOne (NASDAQ:XONE) has been among the hardest hit, seeing a 40% drop in its market cap during the past six months alone.

However, Rule Breakers analyst Simon Erickson thinks there is still plenty to like in this company. In the following video, he points out three important things that investors should keep an eye on at ExOne, and why the company could prosper as 3-D printing continues to mature.