Investors bet big on booming drone economy

The drone economy is taking off, and investors are getting more options to put money into the budding industry.The recently launched REX Drone exchange-traded fund, for example, has 80% of its portfolio earmarked for companies that generate the bulk of revenues from drones, unmanned aerial vehicles (UVA) and the companies that support the industry’s technologies."The drones theme is exciting for a couple of reasons," REX CEO Greg King told FOX Business. "No. 1, the military applications. Ukraine and the Middle East have approved the utility there. And defense budgets are shifting over to a lot