Atlanta Fed Q3 GDPNow forecast slides to 4.3% after peaking above 6%

The Atlanta Fed’s closely watched GDPNow model just took a significant haircut. The real-time GDP growth estimate for the third quarter of 2026 fell to 4.3% as of August 14, down from 5.8% just eight days earlier. For context, the estimate was riding as high as 6.2% on August 3, meaning roughly a third of the projected growth evaporated in less than two weeks.

What’s dragging the estimate down

Two components drove most of the revision. The nowcast for real personal consumption expenditures fell sharply from 4.1% to 2.5%. The forecast for real gross private domestic investment dropped from 17.9% to 15.2%.

How GDPNow actually works

GDPNow is not an official forecast from the Atlanta Fed. It doesn’t reflect the views of any economist, policymaker, or committee. The model is a purely statistical exercise that mirrors the methodology that the Bureau of Economic Analysis uses to calculate GDP, then feeds in the latest available data as it’s released throughout the quarter.

The prior estimates tell the story of that descent: 6.2% on August 3, 5.9% on August 4, 5.8% on August 6, and now 4.3% on August 14. The next scheduled update is August 18, 2026.

Why the trajectory matters more than the number

Personal consumption expenditures account for roughly two-thirds of US GDP. When that component’s nowcast drops from 4.1% to 2.5%, it suggests incoming data came in softer than expected.