Major U.S. stock indices, including the Nasdaq and S&P 500, experienced declines following disappointing earnings forecasts from tech giants Alphabet and Advanced Micro Devices (AMD). Alphabet's stock fell 8.3% after reporting weaker than expected cloud revenue growth and announcing a higher than anticipated capital expenditure of $75 billion for AI investments in 2025. AMD's shares dropped 9.9% after its CEO, Lisa Su, forecasted a 7% decline in data center sales for the current quarter, impacting expectations for AI revenue. Apple's stock also declined by 1.6% amid reports that China's antitrust regulator is considering an investigation into the company's App Store fees and policies. The broader market saw six of the 11 S&P 500 sectors trading lower, with the communication services sector leading the losses at a 3.2% drop. The Dow Jones Industrial Average, however, saw a slight increase of 0.03%.