Consumer stocks were mixed Tuesday afternoon with the State Street Consumer Staples Select Sector SPDR ETF (XLP) rising 1.6% and the State Street Consumer Discretionary Select Sector SPDR ETF (XLY) falling 0.6%.

Redbook US same-store sales last week jumped 10% from a year earlier after a 9.4% increase in the previous week.

In corporate news, Walmart (WMT) will buy nuclear power from Constellation Energy (CEG) under a long-term agreement split into two 15-year terms. Walmart shares rose 2%.

Domino's Pizza (DPZ) shares fell 3.2% after the company said CEO Russell Weiner intends to retire, with Chief Operating Officer Joe Jordan to succeed him later this year.

Carnival (CCL) provided a fiscal Q3 earnings outlook below Wall Street's estimates, though the cruise operator posted a surprise profit increase in Q2 and forecast robust demand and booking trends. The shares dropped 5.1%.