Despite 3D Systems (DDD 1.33%) releasing, by all accounts, an excellent earnings report of its last quarter, shares took a major dip Monday morning, after the company announced that a three-for-two stock split would be completed and effective beginning at the close of business on Friday, Feb. 22. In this video, Motley Fool industrials analyst Isaac Pino speculates on how this stock split may have shaken investors, and cautions that it is much more important for investors to follow the fundamentals of how a company is performing, rather than look at more superficial events such as a stock split to base your thesis on.