Tech stocks tumble for a second day. Here’s what is behind the selloff.
A major tech sell-off stretched into a second day Tuesday as investors questioned whether artificial intelligence will generate the profits that have fueled lofty valuations for companies such as Alphabet, SpaceX and Nvidia. After the opening bell, the tech-heavy Nasdaq Composite slumped 628 points, or 2.4%, to 25,537. The decline marks a second day of … Read more