There's little chance AI will live up to the hype, says Daron Acemoglu, who adds that money will be wasted.
Traders are trying to decide how to respond to rate reductions during a time of economic growth.
The 128-year-old blue-chip index doesn't include Meta, Nvidia or Alphabet.
The so-called Magnificent Seven tech stocks have mostly slumped since July.
The rally in Nvidia took options traders who have been betting on more losses in the chipmaker off guard.
The profits of large tech companies are expected to slow dramatically.
The search giant has been plowing excess cash into share buybacks for years.
Amazon had more than $86 billion in cash at the end of 2023.
The semiconductor industry is notoriously cyclical, with regular boom and bust cycles.
Money-losing tech companies that surged in 2020 fall this year.