The dollar headed for its longest stretch of weekly gains since March after Federal Reserve Chair Janet Yellen reiterated the U.S. is on track to raise interest rates this year.

The U.S. currency was set for its biggest weekly gain in almost two months versus the euro after the Greek parliament voted to accept further austerity required for a new bailout, clearing one obstacle to higher U.S. borrowing costs. The New Zealand dollar plunged to a six-year low after whole milk powder prices slumped at an auction. The Aussie remained lower with its Canadian peer after the Bank of Canada cut rates.

The Bloomberg Dollar Spot Index, which tracks the U.S. currency against 10 of its major peers, was at 1,202.17 as of 9:17 a.m. in Tokyo, after closing at 1,200.76 on Wednesday, the highest since April 13. It has risen 1.1 percent this week.

The greenback traded at $1.0933 per euro from $1.0950 in New York. It added 0.1 percent to 123.89 yen.

The U.S. currency may gain to $1.02 per euro and to 130 yen by Dec. 31, Fujiki said.

Source : Bloomberg