US equity markets opened lower on Tuesday, marking a distinct shift in sentiment as the artificial intelligence-driven rally that has powered gains for months appears to be losing steam.
The decline was broad-based, with the technology sector leading the downturn and dragging major indices into negative territory at the open.
The Nasdaq Composite and the Dow Jones Industrial Average both slipped, reflecting a wider retreat from high-growth valuations.
This selling pressure did not remain confined to US shores; negative sentiment originating in American trading sessions quickly spread to Asian and European markets, indicating a global reassessment of risk appetite.
The move signals a potential rotation or cooling in investor enthusiasm for AI-related equities, which have been the primary engine of market returns recently.
Traders are now weighing whether this represents a short-term correction within a longer uptrend or the beginning of a more sustained pullback in tech-heavy indices.