The U.S. dollar index, a measure of the greenback against six major currencies, rose 0.84% on the day to close at 109.394 at the end of the currency market. Yen 157.40 yen for 1 U.S. dollar, up from 157.40 yen in the previous session; 0.9134 Swiss francs for 1 U.S. dollar, up from 0.9077 Swiss francs in the previous session; 1.4418 Canadian dollars for 1 U.S. dollar, up from 1.4393 Canadian dollars in the previous session; 11.1682 Swedish kronor for 1 U.S. dollar, up from 11.0518 Swedish kronor in the previous session.