Though the market has been somewhat steady so far in 2014, the same cannot be said for shareholders of 3-D printing companies. Some of the industry's largest names have lost well over one-third of their value in a few short months.

No company, however, has lost more than ExOne (NASDAQ:XONE) -- a small 3-D printing company with a focus on large, industrial customers. After the company's earnings release last week, shares continued to be punished -- down as much as 18% in one day.

In the video below, the Motley Fool's Brian Stoffel -- a shareholder in ExOne himself -- digs in and lets you know why the company's shares were trading so low, and what he plans on doing with this new information.

Brian Stoffel owns shares of ExOne. The Motley Fool recommends ExOne. The Motley Fool owns shares of ExOne. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.