Anthropic, the artificial intelligence company behind Claude, has triggered significant market turbulence over the past month with a series of product announcements that have intensified fears about AI disruption across the software industry. The AI firm’s continuous rollout of new capabilities for its Claude chatbot has contributed to a severe sell-off in tech stocks, with the iShares Expanded Tech-Software Sector ETF declining 27% from its early January peak. Beginning in late January, Anthropic’s strategic announcements have planted seeds of concern among investors about the future viability of traditional software-as-a-service companies.
The market chaos began on January 30 when Anthropic unveiled legal tools for its Cowork assistant, designed to help users track compliance and manage legal documents. This announcement sparked immediate concerns that AI could rapidly displace many existing software-as-a-service providers, particularly those serving the legal and publishing sectors. According to market data, the software sector ETF plummeted 11% in the four days following this initial announcement.
Claude Code Security Announcement Impacts Cybersecurity Stocks
On February 20, Anthropic intensified market concerns by introducing Claude Code Security, a feature that scans software for security vulnerabilities. The announcement specifically targeted the cybersecurity sector, which had previously been considered somewhat insulated from AI disruption. Cybersecurity stocks experienced particularly sharp declines when markets opened the following Monday, with losses extending into Tuesday’s trading session.
The feature represented a direct challenge to established cybersecurity companies that provide similar services through traditional software solutions. However, the broader implications extended beyond just cybersecurity firms, as investors began reassessing the vulnerability of various software categories to AI-powered alternatives. The announcement came after several other companies had already made waves with their own AI developments, including what the report described as “a former karaoke machine company.”
COBOL Modernization Capabilities Trigger IBM Sell-Off
The most dramatic single-day impact occurred on February 23 when Anthropic published a blog post highlighting Claude’s ability to modernize COBOL code. “Modernizing a COBOL system once required armies of consultants spending years mapping workflows,” the company stated in its announcement. “AI changes this.”
This capability directly threatened legacy software systems and consulting services that many enterprises, particularly financial institutions and government agencies, have relied upon for decades. IBM stock suffered its worst single-day loss in 26 years, dropping 13% as investors recognized the potential threat to the company’s mainframe and consulting businesses. Additionally, the software sector ETF declined another 4% on Monday following the announcement.
The successive announcements from Anthropic have fundamentally altered investor sentiment toward software stocks and adjacent sectors. Meanwhile, the rapid deterioration has raised questions about whether AI will genuinely replace existing software products or simply enhance them over time. Some analysts have cautioned that the market reaction may represent an overreaction to what could be a more gradual transformation.
The broader software sector now faces sustained pressure as investors attempt to determine which companies are most vulnerable to AI disruption and which possess defensible competitive positions. In contrast to previous technology transitions, the current AI-driven shift appears to be unfolding at an accelerated pace, leaving less time for traditional software companies to adapt their business models. The sell-off has affected valuations across multiple industries as market participants reassess the long-term sustainability of various business models in an AI-dominated landscape.
Market observers expect continued volatility in software and technology stocks as Anthropic and competitors like OpenAI continue developing and announcing new AI capabilities. The pace and scope of future announcements from Anthropic remain uncertain, though the company has demonstrated a pattern of regular product updates that have consistently moved markets. Investors await guidance from affected software companies regarding their strategies for competing with or integrating AI tools into their existing offerings.













