当地时间2月23日，国际商业机器公司（IBM）股价大幅下挫，成为人工智能技术飞速发展下最新的直 观受害者。此前，Anthropic宣布其旗下的Claude Code工具可用于对运行COBOL语言的老旧系统进行现 代化改造。长期以来，IBM一直销售针对大规模交易处理优化的大型主机系统，这类系统普遍使用 COBOL语言。 值得注意的是，进入2月，一场由人工智能（AI）技术进步引发的市场恐慌正在全球蔓延，软件板块首 当其冲。业内消息人士透露，当前人工智能对软件企业商业模式的冲击日益加剧，叠加融资成本上升和 贷款人审查趋严的双重压力，软件公司纷纷推迟债务发行计划。不过，有分析师指出，这可能是一 场"误杀"，现有软件巨头反而可能借此进化。 IBM股价大幅下挫，成为人工智能技术飞速发展下最新的直观受害者。此前，人工智能公司Anthropic宣 布其Claude Code产品推出新编程功能，实现商业编程语言COBOL的大部分研究分析工作自动化，引发 市场对IBM大型主机业务前景的担忧。COBOL相关业务正是IBM的核心业务之一。长期以来，IBM一 直销售针对大规模交易处理优化的大型主机系统，这类系统普遍使用COBOL语言。 ...

Group 1: Market Impact - The U.S. stock market experienced a significant decline, with the S&P 500 index falling by 1.04% to 6837.75 points, the Nasdaq composite dropping by 1.13% to 22627.27 points, and the Dow Jones Industrial Average decreasing by 1.66% to 48804.06 points on February 23 [1] - Concerns over tariffs and AI developments have contributed to market volatility, leading to a trend of "sell first, ask questions later" among investors [1] Group 2: Tariff Policy - The Biden administration is focusing on extending tariff measures rather than expediting refunds, implementing a temporary global 15% tariff for 150 days while utilizing traditional tools to build new tariff barriers [1][3] - The uncertainty surrounding U.S. tariff policies is negatively affecting market risk appetite, with analysts indicating that the Supreme Court ruling does not signal a trade easing [3] Group 3: AI Developments and Company Impact - Anthropic's AI programming tool "Claude Code" aims to modernize legacy systems using COBOL, which is critical for IBM's business, leading to a significant drop in IBM's stock by over 13%, marking its largest single-day decline since 2000 [2] - The introduction of "Claude Code Security" by Anthropic, which scans for security vulnerabilities, has also negatively impacted stock prices of various cybersecurity companies [2] Group 4: Economic Outlook - The U.S. economy showed signs of cooling, with a projected annualized quarterly growth rate of 1.4% for Q4 2025, attributed to tariff policies and government shutdowns [4] - Despite a 2.2% overall growth in 2025, the economic situation appears unstable, with a 45% chance of recession predicted due to slow job growth and rising consumer defaults [5]