Technology10 Top Space Stocks to Watch in 2018, and the One to Buy Today October 13, 2017 by Alex McGuire The top space stocks to watch in 2018 include some of the biggest U.S. tech and defense firms. These companies have a foot in the space industry and stand to benefit from its 214% growth through 2040. But we only recommend that you invest in one of these companies - here's our pick...