美股IPO·2026-02-05 23:11Group 1 - The market is experiencing a shift from risk-on to risk-off sentiment, with a series of accumulated news triggering concerns over asset valuations, leading to simultaneous investor withdrawals [3][4][11] - The S&P 500 index fell by 1.2%, marking its third consecutive day of decline, while the Nasdaq 100 index saw its deepest correction since April of the previous year [4] - Software stocks continue to decline, with new AI models posing competitive threats to existing financial research practices [5] Group 2 - Silver prices plummeted by 17%, while Bitcoin experienced a 10% drop, erasing all gains since Trump's election victory 15 months ago, as investors began to unwind leveraged positions [6] - U.S. Treasury bonds rebounded, reaffirming their role as a traditional "safe haven" [7] - Alphabet's stock price fell despite exceeding revenue expectations, as ambitious spending plans raised concerns among analysts about excessive investments in AI [8] Group 3 - The current market dynamics contrast sharply with earlier predictions of a prolonged bull market, which were based on assumptions of sustained AI momentum and resilient economic support for corporate profits [8] - Investors are increasingly questioning which companies will survive the AI wave and whether the significant investments in this technology will yield returns [9] - The overall market sentiment reflects fear and uncertainty, indicating a potential reset after rapid price increases in popular stocks and assets like gold [11]