A sharp, global selloff in software stocks deepened this week, erasing hundreds of billions in market value as investors grappled with fears that artificial intelligence could disrupt, rather than enhance, traditional software business models. The anxiety was triggered by AI startup Anthropic, which launched new plugins for its Claude Cowork system designed to automate professional tasks in legal, sales, marketing, and data analysis with minimal human intervention.
The selloff was immediate and widespread. On Tuesday, legal and data software firms were hit hardest: Thomson Reuters plunged 16%, London Stock Exchange Group slid 13%, LegalZoom tumbled nearly 20%, and CS Disco fell around 12%. The pressure quickly spread to major enterprise software giants, with ServiceNow and Salesforce both dropping nearly 7%. The iShares Expanded Tech-Software Sector ETF (IGV) fell to $85 from an all-time high of $117.
The contagion went global. Losses extended from Wall Street into Asian and European markets on Wednesday. In London, Sage and Relx declined. In India, the IT sub-index faced its worst day since May 2022, with Tata Consultancy Services and Infosys falling roughly 7%. Analysts dubbed the event a "SaaSpocalypse," with trading characterized by "get me out" style selling.
Investors fear a fundamental threat to software business models. The core concern is that AI tools like Claude's plugins could automate tasks that previously required specialized software or human expertise, potentially reducing the need for multiple software licenses and undermining subscription-based, per-user pricing models. This represents a significant shift from the previous year's narrative, where AI was seen as a tailwind for tech stocks.
The selloff also highlights broader sector weaknesses. Beyond AI fears, software companies like Adobe, ServiceNow, and Salesforce are experiencing slowing growth momentum, leading them to pursue acquisitions to bolster expansion. Furthermore, many are undergoing a severe valuation reset; Adobe's forward P/E ratio has fallen to 12 from a five-year average of 30.
Market strategists note the environment has changed. "We are now in an environment where the sector isn’t just guilty until proven innocent but is now being sentenced before trial," said Toby Ogg, an analyst at JPMorgan. The turmoil wiped out an estimated $300 billion in U.S. market value in a single day, signaling a deeper shift from unquestioned optimism to a cautious, selective assessment of which companies will survive the AI disruption.
