The dollar gained on Wednesday on modest rises in US Treasury yields and market speculation Federal Reserve Chair Janet Yellen is leaning toward tightening monetary policy that has kept interest rates at record lows. The dollar index, a grouping of six currencies traded against the greenback, was up 0.2 percent to 80.556 after touching its highest level in a month. Sterling fell against the dollar to $1.7145, off a nearly six-year high of $1.7192 struck on Tuesday.
The euro was down 0.3 percent at $1.3530, falling to its lowest in one month, while the greenback was slightly higher against the Japanese yen at 101.71 yen after touching a one-week high of 101.79. The Australian dollar shed 0.07 percent to $0.9359 following the Chinese GDP release.