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Walmart's plunge sinks retailers, breaking streak for stocks

The biggest drop in Walmart’s stock in 30 years and losses in other sectors pulled U.S. indexes lower Tuesday, snapping a six-day winning streak.

The biggest drop in Walmart’s stock in 30 years and losses in other sectors pulled U.S. indexes lower Tuesday, snapping a six-day winning streak.

The losses deepened in the last hour of trading into a broad sell-off that erased early gains led by technology companies.

Walmart plunged 10 percent after reporting weak online sales and disappointing earnings. Grocery store operators, retailers, health...