Non-Manufacturing Index


The primary index released in Non-Manufacturing ISM Report on Business by the Institute for Supply Management on monthly basis. The index is seasonally adjusted and measures business activity in the US service economy. Service sector (non-manufacturing) accounts for approximately 80% of US economy. A reading above 50% indicates expansion of services sector; below 50% indicates the sector's contraction.

Investing Essentials

Copyright © 2011 Campbell R. Harvey, Professor of Finance, Fuqua School of Business at Duke University

Term of the Day

Acid test ratio

Also called the quick ratio, the ratio of current assets minus inventories, accruals, and prepaid items to current liabilities.

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