It could get a whole lot harder to beat Cathie Wood's Ark Invest line of funds moving forward as artificial intelligence (AI) and other emerging technologies come into their own. Undoubtedly, it can be rather tricky to bet on disruptive innovators since it's not just the incumbents these firms seek to disrupt that need to stay on their toes but

Ark Invest, led by Cathie Wood, sold a chunk of its Robinhood shares. The sales come after the company posted strong earnings for the fourth quarter. Robinhood Markets saw its stock surge nearly 14% in early trading on Thursday,