Alphabet has been talking nonstop about AI. Now investors are looking for proof that the company’s efforts are working.

Key Takeaways U.S. equities were mixed at midday, slowed by new Chinese tariffs on U.S. goods and weak tech results.Alphabet ...

Advanced Micro Devices (NASDAQ: AMD), and Micron Technology (NASDAQ: MU) plunged on news that a Chinese start-up called ...