Related: China A-Shares ETFs to Capitalize on Index Changes

According to CBS Denver, “The drones flew within inches of each other during the show, and were piloted by just one person using a single computer.”

The deployment of remote-controlled drones as entertainment has become increasingly popular as part of public performances in China.

The PureFunds Drone Economy Strategy ETF

PureFunds Drone Economy Strategy ETF (NYSEARCA: IFLY) is up more than 20% year-to-date and nearly 25% over the past 12 months. The ETF is the first ETF providing access to companies designing, manufacturing, and researching drones and drone technology.

IFLY tracks the the Reality Shares Drone Index (RSD), a basket of companies determined based on a combination of Projected revenue from drone technology; Direct involvement in developing or researching drone technology; Services provided to companies directly involved in drone technology; and the expected growth of a company’s revenue from drone technology.