Christian Mueller-Glissmann

South Korea's Kospi index plunged 9% on Monday, deepening a 27% loss over three weeks, as AI stock jitters collided with a retail debt crisis that saw brokerages liquidate over $100 million in retail …

Goldman Sachs warns that the wave of AI-fueled earnings surprises that boosted stocks last quarter will be hard to repeat, making a major rally from results alone unlikely. The bank's head of asset al…

Goldman Sachs warns that leveraged stock bets are heavily concentrated in the AI ecosystem, with net margin borrowing reaching $1.4 trillion, equivalent to 1.8% of all U.S. stocks. The concentration o…