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The Conference Board said its index on American consumer confidence fell to 88.7, down from a revised 94.1 in October. Economists polled by Reuters had forecast a November reading of 96.0.
The greenback fell to a U.S. session low of 117.82 yen after the surprisingly weak report on consumer mood.
The euro hit a global session peak of $1.2479 after the latest consumer confidence data.