SandP 500 Movers: FLIR\, UAA

In early trading on Tuesday, shares of Under Armour (UAA) topped the list of the day's best performing components of the S&P 500 index, trading up 22.9%.

Year to date, Under Armour registers a 54.9% gain.

And the worst performing S&P 500 component thus far on the day is FLIR Systems (FLIR), trading down 12.3%.

FLIR Systems is showing a gain of 0.2% looking at the year to date performance.

Two other components making moves today are IPG Photonics Corp (IPGP), trading down 5.5%, and Under Armour (UA), trading up 21.9% on the day.