While Fools should generally take the opinion of Wall Street with a grain of salt, it's not a bad idea to take a closer look at particularly stock-shaking upgrades and downgrades -- just in case their reasoning behind the call makes sense.

What: Shares of 3D Systems (NYSE:DDD) climbed 5% today after Deutsche Bank initiated coverage on the 3-D printing technologist with a buy rating.

So what: Along with the buy rating, analyst Sherri Scribner planted a price target of $95 on the stock, representing 25% worth of upside to yesterday's close. While value investors might be turned off by the stock's massive gain in 2013, Scribner believes there's plenty of room to run given 3D Systems' strengthening position in the still-rapidly growing 3-D printing space.

Now what: According to Deutsche, 3D Systems' risk and reward trade-off remains particularly attractive. "The company has increased its materials and services offerings, which has helped expand margins, and we expect future growth in materials to benefit margins over time," noted Deutsche. "With strong industry growth just beginning to take off, we view 3D Systems as one of the key beneficiaries." Of course, with 3D Systems up about 185% from its 52-week highs and trading at a forward P/E of 60, Fools will need plenty of tech-savvy to figure out how much of that growth is already baked into the valuation.

Fool contributor Brian Pacampara has no position in any stocks mentioned. The Motley Fool recommends 3D Systems. The Motley Fool owns shares of 3D Systems and has the following options: short January 2014 $20 puts on 3D Systems. 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.