After a few minutes of trading, the broad S&P 500 index fell about 0.4 percent, the technology-heavy Nasdaq composite index 0.3 percent and the Dow Jones industrial index around 0.4 percent.
Producer prices in the US rose significantly more than expected in July. The increase was 0.9 percent compared to the previous month. Analysts had expected 0.2 percent.
On an annual basis, the increase is 3.3 percent.
Also, the interest rates on American government bonds, regardless of maturity, rose after the announcement.
The statistics reduce the likelihood that the American central bank will lower the interest rate at the next meeting in September.
