The U.S. currency against the yen

Although the U.S. currency maintained its firm tone, its upside against the yen was capped by Japanese exporters' selling, traders said.
The dollar index, a gauge of the greenback's performance against six other major currencies, inched up 0.3 percent to 78.060. .DXY
The euro was trading around $1.4285 EUR=, down 0.3 percent from U.S. trading on Dec. 31.