US inflation was 9.1 percent in June, the highest figure since November 1981.
Economists had expected an average inflation rate of 8.8 percent, reports TT.
The figure can be compared with May when inflation was 8.6 percent. The so-called core inflation adjusted for food and energy landed at 5.9 percent, also higher than expected.
The Stockholm Stock Exchange falls on the news and is down 2.2 percent after previously being at minus 0.9 percent.