Under Armour Showing Weakness On Upcoming Nike Earnings

Shares of Under Armour UA are showing weakness Tuesday's, trading down 3.25 percent from the open at $81.05 to a daily low of $77.92. This downward pressure may be attributed to Nike, Inc NKE moving higher, up 0.71 percent, as the company will report earnings after the market closes Tuesday afternoon.

Jim Cramer advised viewers on CNBC's Mad Money on Monday night to hold onto Under Armour shares, despite the potential that shares could trade lower.

Continue to look for movement in each of these sports retailers as market inches toward Tuesday's close. Nike typically reports at 4:15pm E.T., so expect volatility in peers of athletic retailers around then.