This copy is for your personal, non-commercial use only. To order presentation-ready copies for distribution to your colleagues, clients or customers visit http://www.djreprints.com. https://www.barrons.com/articles/arks-cathie-wood-disrupted-investment-management-shes-not-done-yet-51614992508 Andrew Michel, a 65-year-old product-marketing engineer, made a bold—many would say an imprudent—move last June. The longtime, typically conservative investor sold two-thirds of his retirement savings, which had been invested in broad-market index funds, and put the money into two red-hot ARK exchange-traded funds. Within a few months, he made enough for a down payment on a second home, in sunny Tampa, Fla. “I looked her up, and it all sounded really good,” he tells Barron’s.