S&P Global shares fell 14% this week. This decline marks the stock's worst weekly performance since March 2020. The iShares Expanded Tech-Software ETF also recorded its most significant eight-day drop in nearly six years.
Investor anxiety over the capabilities of new artificial intelligence models drove the sector-wide sell-off. The announcement of Anthropic's Claude Opus 4.6 model served as the primary catalyst for these concerns.
Claude Opus 4.6 can automate complex financial analysis and integrate with common software. This technology poses a potential threat to the core business of established financial analytics and data providers.