American manufacturing demonstrated robust expansion in October, surpassing economic forecasts as factory production reached levels unseen in nearly half a decade.

The Institute for Supply Management reported Monday that its closely watched manufacturing index climbed to 55.5 in October, up from 54.5 the previous month. This marked the second-highest reading in more than four years and exceeded nearly all economist predictions. The index operates on a simple principle: readings above 50 signal expansion, below 50 indicate contraction. By this measure, American manufacturing has now grown for ten consecutive months.

The production component of the survey proved particularly encouraging, jumping 2.3 points to reach 59, the strongest showing since November 2021. This suggests factories are operating at increasing capacity to meet demand. New orders, often considered a leading indicator of future activity, edged higher to 55.5 from 55.3, representing the tenth straight month of growth and the strongest reading since July.

Manufacturers also reported welcome relief on the cost front. The prices index declined 2.7 points to 75.2, indicating that input-price increases, while still present, became less widespread than in September. Though the reading remained elevated in historical terms, the downward trajectory offers manufacturers some breathing room after sustained inflationary pressures.

Employment in the manufacturing sector continued its positive trend, with the employment index registering 52.4, down marginally from September’s 52.7 but remaining above the expansion threshold for a fourth consecutive month. This represents the longest stretch of manufacturing employment growth since early 2022, a significant development for American workers in the industrial sector.

The expansion proved broad-based across the manufacturing landscape. Twelve industries reported growth during the month, including electrical equipment, machinery, computer and electronic products, primary metals, and transportation equipment. Only three industries contracted: printing, paper, and nonmetallic mineral products. Notably, five of the six largest manufacturing industries expanded.

Other indicators pointed to sustained momentum ahead. Manufacturers’ inventories returned to growth territory, with that index rising to 51.4 from 48.6. Customer inventories remained at levels the Institute considers too low, a condition that typically supports future production as businesses work to replenish their supplies.

International trade showed improvement as well. Export orders increased to 51.2 from 50.9, while the imports index rose to 52.9 from 51, suggesting manufacturers are both selling more abroad and bringing in materials to support continued production.

These figures paint a picture of an American manufacturing sector operating with considerable strength as the year draws toward its close. The combination of robust production, steady new orders, easing cost pressures, and employment growth suggests the industrial renaissance many had hoped for may be taking firmer root in the economy. Whether this momentum can be sustained through the remainder of the year and beyond remains to be seen, but for now, the factory floor appears to be humming.

Related: Kimi Antonelli Becomes Youngest Formula 1 World Champion at Age 20