The premarket selloff in Dow Jones Industrial Average DJIA, -3.15% components is unanimous, with all 30 stocks losing ground, as Dow futures YMZ8, -0.56% tumble 220 points. The biggest decliner is UnitedHealth Group Inc. shares UNH, -2.60% which slumped 2.8%. Just behind was Walgreens Boots Alliance Inc.’s stock WBA, -1.70% which fell 2.4% after the drug store chain reported fiscal fourth-quarter earnings that beat expectations but sales that missed. The most active stocks ahead of the open were Apple Inc.’s AAPL, -4.63% which shed 1.8%, and Microsoft Corp.’s MSFT, -5.43% which lost 1.7%.
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