BlackRock: AI Sentiment Moves Prices 2% in Under 10 Minutes

A major news headline can now move prices more than 2% in under 10 minutes. That is the shift AI-driven market sentiment has already brought, where models read thousands of headlines in seconds and hand back trading signals before most people finish the first paragraph.

That figure comes from BlackRock, and it is the clearest measure yet of how little time a human trader has to react.

What Happened

• Large language models parse thousands of headlines in seconds, score each one as bullish or bearish, and prepare automated trading signals from the result.
• BlackRock noted in 2024 that AI-driven sentiment causes price moves of more than 2% within 10 minutes of a major news release.
• The thread moves on to geopolitical risk modeling after this part.

Why It Matters

News reaction is now machine-paced. By the time a headline reaches you and you work out what it means, the move it caused has already happened. Anyone trading off the news is no longer racing other people, they are racing models that never stop reading.