AI Infrastructure Stocks Tumble as Chinas DeepSeek Sparks Broad Market Rout Roth Capital Raises Target Price Target but Warns Q1 May Have Been a Goldilocks Quarter SpaceX Delays Starship Test Flight Retry Scheduled for Friday Technology Stocks Lead Mixed US Equity Markets on the 26th US Consumer Sentiment Remains Pessimistic Inflation Tariffs and Geopolitical Tensions Weigh on Outlook AI Could Revolutionize Brain Drug Discovery Slashing Timelines from Decades to Years US Productivity Growth Slows in Q4 Unit Labor Costs Rise Sharply