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ROB Manufacturing Data

The ISM Manufacturing Report On Business® is so highly respected because it is based on hard data, not conjecture. The Institute's Business Survey Committee, a group made up of more than 300 purchasing and supply executives from across the country, provides the data. Members of the committee respond anonymously and confidentially to a monthly questionnaire about changes in production, new orders, new export orders, imports, employment, inventories, prices, lead times, and the timeliness of supplier deliveries in their companies comparing the current month to the previous month. The questionnaire also solicits data on commodities, which are up or down in price and in short supply, and asks for general remarks on business conditions. The responses of the committee members mirror the economic activities of the manufacturing sector, nationally, ensuring a report that accurately represents current business conditions.

Most recent PMI report

Past Month PMI report

In February 1982, the U.S. Department of Commerce (DOC) paired with ISM to develop the PMI. This index, based on analytical work by the DOC, adjusts four components of the Institute's monthly survey—new orders, production, employment and supplier deliveries—for normal seasonal variations, applies equal weights to each and then calculates them into a single monthly index number.

An update of research originally done by Theodore S. Torda, the late economist for the DOC, shows a close parallel between growth in real Gross Domestic Product (GDP) and the PMI. The index can explain about 60 percent of the annual variation in GDP, with a margin of error that averaged ± .48 percent during the last ten years.

In January 1989, the Supplier Deliveries Index from the Report became a standard element of the DOC's Bureau of Economic Analysis Index of Leading Economic Indicators. The data was incorporated into the index from June 1976 forward. In January 1996, The Conference Board began compiling this index.