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Factory OutputInstitute for Supply Management· 4 min read· in Finance

American Factory Activity Rebounds to 55.5 in October Despite Lingering Price Pressures

The U.S. manufacturing sector expanded for a 10th consecutive month in October as production reached a three-year high. However, industrial firms continue to face elevated input costs and supply chain friction.

By Madison Lane

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American factory activity accelerated in October, extending a streak of sectoral expansion to 10 consecutive months. The Institute for Supply Management reported that its Manufacturing Purchasing Managers' Index rose to 55.5, a full percentage point higher than September's 54.5 reading.[1][2]

The October figure comfortably exceeded the 54.5 reading expected by analysts polled by The Wall Street Journal. Any reading above the 50-point threshold indicates that the manufacturing economy is generally expanding, signaling sustained momentum heading into the fourth quarter.[2]

A significant surge in factory output drove the headline improvement. The production subindex jumped 2.3 percentage points to reach 59.0, marking its highest level since November 2021 and indicating that manufacturers are actively ramping up operations.[1][3]

Incoming demand also remained firmly in expansion territory, though it grew at a more modest pace than output. The new orders index edged up to 55.5 in October, a slight increase from the 55.3 recorded in the prior month.[1][2]

October's manufacturing expansion was driven by a sharp increase in production, though input prices remained elevated.

‘Of the five subindexes that make up the PMI, four—new orders, production, supplier deliveries and inventories—grew faster than the previous month,’ said Susan Spence, chair of the ISM's manufacturing business survey committee. She noted that only employment growth slowed down.[1]

Inflationary Pressures Persist

Despite the robust production figures, manufacturers continue to grapple with stubbornly high input costs. The ISM's prices index registered 75.2 in October, indicating that raw materials and components remain expensive across the supply chain.[2][3]

While the prices gauge fell 2.7 points from September's reading of 77.9, it remains significantly elevated compared to levels seen before the Middle East conflict began. The data suggests that supply-side inflation is still a primary concern for industrial firms.[2][3]

‘Higher prices were reported by 53.1% of respondents in October, down 5.5 percentage points from September's 58.6%,’ Spence noted. Factories are navigating these costs alongside supply-chain disruptions tied to tariffs and geopolitical tensions.[2][3]

Delivery times also lengthened slightly during the month, compounding the pricing pressures. The supplier deliveries subindex rose to 59.1 from 59.0, reflecting ongoing friction in acquiring necessary industrial inputs and raw materials.[1][3]

Employment and Inventories

While production lines accelerated, factory hiring moderated slightly in October. The employment subindex eased to 52.4 from 52.7 in September, indicating that workforce expansion is continuing but at a marginally slower rate.[1][3]

Illustration: Business investments in data centers and artificial intelligence infrastructure have provided a steady stream of new orders for electrical equipment manufacturers.

Conversely, factory inventories switched from contraction to growth during the month. The inventories subindex climbed to 51.4 in October, up from 48.6 in September, as manufacturers built up stock to meet ongoing production demands.[1][3]

Spence highlighted that the customers' inventories index remained in ‘too low’ territory, contracting at the same rate as the previous month. She noted that this status is usually considered a positive indicator for future production requirements.[1]

Broad-Based Industry Growth

The October expansion was widespread across the U.S. industrial base. Twelve distinct manufacturing industries reported growth during the month, underscoring the sector's resilience despite the elevated cost environment.[1]

Growing sectors included computer and electronic products, electrical equipment, machinery, and chemical products. Only three industries reported a contraction in activity, indicating that the manufacturing recovery is broad rather than concentrated in a few niche areas.[1]

The industries reporting expansion also included plastics and rubber products, primary metals, transportation equipment, and fabricated metal products. Food, beverage, and tobacco products saw increased activity alongside furniture and related products.[1]

Illustration: Supply chain disruptions and longer supplier delivery times continue to put upward pressure on the cost of raw materials.

The factory sector is currently benefiting from resilient consumer demand and solid business investment. Corporate outlays on data centers, artificial intelligence infrastructure, and heavy industrial equipment have provided a steady pipeline of new orders.[3]

The surge in artificial intelligence development has directly translated into physical manufacturing demand. Facilities producing the electrical equipment, appliances, and components required to power new data centers are seeing sustained order volumes.[1][3]

This industrial strength mirrors broader macroeconomic trends seen throughout the fall. The U.S. economy expanded at its fastest pace in a year during the third quarter, providing a supportive backdrop for the manufacturing sector's continued expansion.[3]

As the fourth quarter begins, the divergence between strong production data and persistent inflation remains the central dynamic. Manufacturers are successfully clearing backlogs and raising output, but they are paying a premium to do so.[1][2][3]

Key points

  • The ISM Manufacturing PMI rose to 55.5 in October, marking the 10th consecutive month of sectoral expansion.
  • Factory production surged to 59.0, reaching its highest level since November 2021.
  • Input costs remained elevated, with the prices index registering 75.2 amid ongoing supply chain disruptions.
  • Twelve manufacturing industries reported growth, bolstered by strong business investment in data centers and AI infrastructure.

Open questions

  • Whether the elevated prices index will eventually force manufacturers to pass higher costs onto consumers in the fourth quarter.
  • How long the current surge in AI and data center infrastructure investment will continue to prop up the electrical equipment and machinery sectors.
  • The exact impact of potential new tariffs on the already strained supplier delivery times.

Timeline

  1. November 2021

    The ISM production index reaches its previous high before the current October 2026 surge.

  2. January 2026

    The U.S. manufacturing sector enters its current period of consecutive monthly expansion.

  3. September 2026

    The ISM Manufacturing PMI registers 54.5, with the prices index hitting 77.9.

  4. November 2, 2026

    The Institute for Supply Management releases the October data, showing the PMI rising to 55.5.

Macroeconomic Analysts 50%Procurement Executives 50%
Macroeconomic Analysts
Focus on the headline PMI growth, surging production, and the sector's contribution to broader third-quarter GDP expansion.
Procurement Executives
Emphasize the persistent input cost inflation, supply chain friction, and the ongoing challenges of sourcing raw materials.

Perspectives this story doesn't cover

  • Small-to-medium enterprise (SME) manufacturers
  • Consumer goods retailers

Sources

Source coverage

3 outlets

2 viewpoints surfaced

Macroeconomic Analysts 50%Procurement Executives 50%
  1. [1]IndustryWeekProcurement Executives

    October ISM Report: Manufacturing PMI Grows to 55.5%, Extending 10-Month Streak

    Read on IndustryWeek →
  2. [2]MorningstarMacroeconomic Analysts

    U.S. Factory Activity Expanded in October, Says ISM — Update

    Read on Morningstar →
  3. [3]Staffing Industry AnalystsMacroeconomic Analysts

    US factory activity picks up speed in October

    Read on Staffing Industry Analysts →
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