The Dow Jones Industrial Average closed 0.4% lower at 18,493.
A falling oil price hit shares in oil companies. Chevron was the biggest faller on the Dow with a 2.5% decline. Exxon Mobil dropped 2%.
The S&P 500 fell 0.3% at 2,168, energy firms were the big losers on that index.
Retailers performed well, Nordstrom added 4.5%, Gap closed 3.3% higher, Macy's rose by 3%.