Google AI Overviews Surged on Branded Queries in September, DemandSphere Says

DemandSphere data shows AI Overviews appeared on 26.12% of tracked branded queries on September 1, 2026, peaking at 90.48% on September 27 before settling at 82.06% on September 29. Google had not issued an official announcement about the change.

• AI Overviews appeared on 26.12% of tracked branded queries on September 1
• Presence peaked at 90.48% on September 27, then fell to 82.06% on September 29
• DemandSphere counted Overview presence, not brand mentions in answers
• Google made no official announcement about the change