Photographer: Yuki Iwamura/Bloomberg Investors will remember 2025 as the year the artificial intelligence rally broadened out and the fears became more pronounced — not only of a bubble in the stocks, but also of the disruption the technology represents. While tech giants like Alphabet Inc. and Nvidia Corp. delivered strong gains, unsung corners of the industry, like memory chips and hard disk drives, proved to be far better places for investors. Meanwhile, the threat of competition from deep-pocketed he ...