Arm is emerging as one of the breakout winners in the AI boom.
Nvidia's software locks in customers and stimies competition. Intel, Google, Qualcomm, and others are pushing an open alternative.
The U.S. stock market is off to a soaring start in 2024, as optimism over the economy and interest rate cuts has combined with exuberance about the business opportunity in artificial intelligence to stir up a potent cocktail for equities. The S&P 500 in late January hit its first record high in two years and hasn't looked back, setting more than a dozen highs without a significant pullback so far this year, on pace for its biggest first-quarter gain since 2019.