Wall Street ended little changed on Friday although Amazon.com's $13.7bn deal to buy upscale grocer Whole Foods rocked shares of a string of companies, including Wal-Mart and Target.
At the closing bell, the Dow Jones was up 0.11% to 21,384.28 points, the S&P 500 gained 0.03% to 2,433.15, and the Nasdaq ended 0.22% better at 6,151.76.
Energy sector shares helped buoy the S&P and Dow, while a 1.4% drop in Apple weighed on the Nasdaq.
But the big movers were in retail. Wal-Mart fell 4.65% and Target fell 5%. Kroger, the biggest US supermaket by store numbers, closed down 9.2%.