AI companies dominate 44% of US stock market value, creating economic risks as tech giants like Nvidia, Apple, Microsoft grow trillions while rest of economy weakens, experts warn after White House summit.

A small group of AI companies are creating a lopsided US economy

Experts warn AI's dominance of the US stock market is creating risks all of its own. Some of the world's richest gathered with Donald Trump at the White House last month.(Getty Images: Kevin Dietsch / Staff)At last month's White House AI Summit, some of the richest individuals on Earth were clustered around US President Donald Trump.Each of them had built their fortune in the tech industry. Jeff Bezos, Mark Zuckerberg and Elon Musk were in attendance at the White House for an AI event.(ABC News:...