The most valuable company in the world will report earnings Wednesday that will help answer a burning question for the U.S. economy: whether the artificial intelligence boom is real. The company, computer-chip giant Nvidia, has powered much of the boom that has fueled 2025’s record U.S. stock market gains . But it’s not just stocks that benefit. Nvidia’s chips have been the catalysts for a massive build-out of data centers that have supplied a backbone to the U.S. economy amid slowdowns