Tech selloff wipes over $1T from Big Tech valuations as investors question AI spending returns, with Amazon, Meta, Microsoft, and Alphabet forecasting $600B+ in 2026 capex.

AI competition from Anthropic's Claude sparks investor concerns about software sector sustainability, causing Microsoft and tech stocks to plunge sharply.

New AI tools from Anthropic and OpenAI trigger massive tech stock selloff. Investors fear AI disruption threatens traditional software business models.

The apparent collapse of the widely reported $100 billion investment deal between Nvidia and OpenAI has sent shockwaves through the AI industry, with Nvidia CEO Jensen Huang clarifying the arrangement was never finalized. The development raises critical questions about circular funding models in AI and who will ultimately bear the costs of massive AI infrastructure expansion.

Major tech indexes tumble as investors reassess AI's impact on traditional software companies, with Nasdaq down over 1% amid sector-wide concerns.