The first company IAS recommends in the December issue is a midsized biotechnology firm. A recent sell-off has created a short-term buying opportunity, according to our analysts.

Our second pick is new to the Investor Advisory Service, a small industrial business with a big footprint in the emerging 3D printing market, though focused not on the overhyped consumer segment but on the cost-saving techniques of rapid prototype development.

Finally, IAS suggests that more risk-tolerant subscribers take a look at our third selection, a communications equipment maker that's on a major growth trajectory.