In early trading on Wednesday, shares of Illumina topped the list of the day's best performing components of the S&P 500 index, trading up 4.0%. Year to date, Illumina has lost about 4.3% of its value.
And the worst performing S&P 500 component thus far on the day is Wynn Resorts, trading down 3.7%. Wynn Resorts is showing a gain of 13.8% looking at the year to date performance.
Two other components making moves today are DaVita, trading down 2.9%, and Micron Technology, trading up 3.3% on the day.