Warren Buffett’s latest challenger will fizzle like the rest Premium Spencer Jakab , The Wall Street Journal Cathie Wood has ridden stocks like Tesla to stardom, but funds like ARK Innovation ETF are best avoided after they get hot Share Via “Move Over, Warren Buffett: This Is the Star Investor You Should Be Following." So read the headline on a year-end article from retail investing advice site Motley Fool touting the performance of fund manager Cathie Wood. Variations on the “Buffett is done" theme have been around since at least the tech bubble, while the cult of star mutual-fund managers goes back to the 1960s. Such commentators have eventually eaten their words.