In early trading on Wednesday, shares of Teradyne topped the list of the day's best performing components of the S&P 500 index, trading up 15.2%. Year to date, Teradyne has lost about 17.2% of its value.
And the worst performing S&P 500 component thus far on the day is Palo Alto Networks, trading down 8.3%. Palo Alto Networks is lower by about 2.3% looking at the year to date performance.
Two other components making moves today are Seagate Technology Holdings, trading down 8.0%, and Humana, trading up 5.7% on the day.
VIDEO: S&P 500 Movers: PANW, TER
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