Cathie Wood, head of Ark Investment Management, is known for making bold bets — but she’s not afraid to change course when the market proves her wrong. That’s what she did this week. She unloaded a tech stock that tumbled nearly 50% last year.

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