In early trading on Wednesday, shares of Kroger topped the list of the day's best performing components of the S&P 500 index, trading up 2.3%.
Year to date, Kroger registers a 6.3% gain.
And the worst performing S&P 500 component thus far on the day is Wellcare Health Plans, trading down 42.8%.
Wellcare Health Plans is showing a gain of 6.0% looking at the year to date performance.
Two other components making moves today are Lamb Weston Holdings, trading down 14.3%, and Take-Two Interactive Software, trading up 1.8% on the day.