Stocks ended another choppy day of trading mixed, leaving the market with its second losing week in a row.

Investors pored over reports on inflation and consumer sentiment seeking clues about the Federal Reserve's next move on interest rates. The government reported a slight increase in inflation in wholesale prices last month, which could persuade the Fed that its work on bringing inflation to heel isn't done.

The University of Michigan's preliminary August survey showed consumer sentiment fell slightly.

The S&P 500 fell 0.1% Friday. The Dow rose 105 points, or 0.3%, and the Nasdaq fell 0.7%.