SPGI · News · 20260923N

Macroeconomic Factors Impact

S&P Global Inc. · 2026-09-23 · Importance 22 · Surprise 32

S&P Global’s US Flash PMI Composite Output Index rose from 56.0 in August to 58.4–58.7 in September 2026, indicating the fastest US business expansion in more than five years. Growth was supported by stronger new orders and employment, while companies reported worsening supply-chain delays and rising backlogs. Higher fuel costs linked to the war in Iran increased input-price pressures, and US business confidence remained tempered by cost-of-living concerns.

Key facts