The consumer confidence index slumped to a five-month-low of 50.4 in July, as it deteriorated more than economists expected from a June reading of 54.3, the Conference Board reported Tuesday.

The June level was revised upward from an originally reported 52.9. Economists polled by Thomson Reuters predicted the index would slip to 51.0 in July. The reading was the lowest since confidence plunged to 46.4 in February.

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