Cathie Wood has been active in semiconductors this spring, and Advanced Micro Devices (AMD) is the most spotlighted stock within those moves. Ark Invest bought AMD shares in February, then turned around and sold about 44,446 shares worth roughly $10.5 million in April. That kind of trading says more about portfolio management and risk control than a clean thesis call. It also comes after a rougher stretch for high-beta growth names, where investors have been rotating in and out of chip stocks fast. The A ...