Cathie Wood buys $17.2 million of tumbling tech stock

Cathie Wood, head of Ark Investment Management, targets tech companies she believes will lead the next wave of innovation. Sometimes she buys them on the way down, hoping for a bargain. That’s what she did in the past week, adding a big tech name’s stock that has plunged 10% in a day. Wood’s funds have experienced a volatile ride this year, swinging from sharp losses to strong gains. In January and February, the Ark funds rallied as investors bet on the Trump administration's potential deregulation that ...