And the worst performing S&P 500 component thus far on the day is Costco Wholesale, trading down 2.9%. Costco Wholesale is roughly unchanged. looking at the year to date performance.
Two other components making moves today are Super Micro Computer, trading down 1.9%, and Boeing, trading up 3.2% on the day.
VIDEO: S&P 500 Movers: COST, PCAR
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