Aruoba-Diebold-Scotti Index
The Aruoba-Diebold-Scotti Business Conditions Index ("ADS Index" ) is a coincident business cycle indicator used in macroeconomics in the United States. The index measures business activity, which may be correlated with periods of expansion and contraction in the economy.
Source: Wikipedia — Aruoba-Diebold-Scotti Index (CC BY-SA 4.0)