Japan's private-sector activity expanded at its weakest pace in four months during September, according to S&P Global Flash PMI data released on September 23, 2026. The slowdown reflects softer domestic demand weighing on new business orders across the economy. The S&P Global Flash Japan Composite PMI Output Index declined to 52.5 in September from 53.5 in August, marking the 18th consecutive month of private-sector expansion but the softest reading since May.
The index remains above the 50-point threshold that separates expansion from contraction. The deceleration was broad-based across economic sectors. The Flash Japan Manufacturing PMI eased to 54.1 from 54.9, while the Services PMI business activity index slipped to 51.6 from 52.5.
Manufacturing continued to lead overall growth, although factory output growth also moderated to a three-month low. New business growth moderated significantly in September, with the survey pointing to weaker domestic demand. Manufacturers recorded solid sales growth, but the pace represented the slowest expansion in four months.
Growth in new business at services companies also cooled during the month. Export demand provided some offset to domestic weakness. New export work increased at the same pace as August, when growth reached an eight-and-a-half-year high, though gains were driven entirely by manufacturers.
Services firms, meanwhile, recorded another decline in overseas demand. Inflationary pressures persisted despite some easing. Input-cost inflation slowed to a four-month low, with companies citing higher energy and raw-material costs linked to the Middle East conflict, a weak yen, as well as rising labor and transport expenses.
Selling-price inflation also eased only slightly from August's survey record. Private-sector employment continued to expand in September, extending the current streak of job creation to three years. The pace of payroll growth was the fastest in seven months, supported by stronger hiring at both manufacturers and services companies.
S&P Global noted that firms remained concerned that elevated prices and relatively weak domestic demand could constrain future growth. The flash survey was based on data collected between September 8-21, with final manufacturing data due October 1.
Source: investing.com