US Stocks Waver as Inflation Concerns Persist Merger Activity Dominates Goldman Sachs Warns Stock Market Surge Triggers Rare Signal Heres What History Suggests AI May Deepen Corporate Concentration Goldman Sachs Warns Swiss Franc and Japanese Yen Strengthen as DeepSeek AI Disruption Sparks SafeHaven Demand Retail Hiring Surges in April as Consumer Caution Signals Emerge Tennessee Men Accused of 65 Million Cryptocurrency Theft Appear in San Francisco Federal Court NACHO Trade Takes Center Stage But Memory Chipmaker Rally May Still Have Room to Run