Ark Invest funds have been selling the electric vehicle maker's stock over the last few weeks and reinvesting the proceeds into Amazon.Over the last several years, Cathie Wood of Ark Invest has emerged as one of Wall Street's most intriguing personalities.Most portfolio managers emphasize concepts found in textbooks such as valuation multiples or intrinsic value. Wood is different. Ark Invest offers investors access to a host of exchange-traded funds (ETFs), the majority of which are comprised of emerging t ...