Cathie Wood buys $2.5 million of tumbling megacap stock

Cathie Wood, head of Ark Investment Management, was relatively quiet this week, even as the S&P 500 rallied about 4.5% over the past five days. Wood made no trades on Tuesday, April 14, and Wednesday, April 15, and sold some shares of two medical stocks on Monday, April 13, and Thursday, April ...