Yellen's speech cited persistent labor market slack but noted faster recovery in the sector could accelerate the timing of a Fed interest rate hike.» Read More
The yen soared on Tuesday after the Bank of Japan decided not to announce additional measures to curb recent volatility in the bond market.
The dollar rose sharply versus the yen on Monday, bolstered by stronger-than-forecast Japanese data and a Standard & Poor's upgrade to the credit outlook for the United States.
The dollar recovered on Friday from steep losses in the previous session after a government report showed a reasonably healthy pace of U.S. job creation in May.
The dollar fell sharply against the yen and euro on Thursday, hitting levels not seen in months, as investors fretted that upcoming U.S. jobs data would disappoint.
The dollar weakened against most currencies on Wednesday after a report showed hiring in the U.S. private sector fell short of expectations last month.
The dollar recovered against the yen on Tuesday as investors sought to take advantage of the previous day's cheapening to buy back the U.S. currency.
The dollar plunged against a broad swath of currencies on Monday as weak U.S. manufacturing data curbed expectations that the Fed will rein in its bond purchases soon.
The dollar rose Friday and was headed for its eighth straight month of gains against the yen on robust U.S. economic data.
The U.S. dollar fell to a three-week low against the euro after weaker-than-expected U.S. economic data boosted expectations the Fed will keep its monetary stimulus in place.
The dollar retreated on Wednesday as U.S. Treasury yields eased from more than one-year highs, although most investors are convinced the greenback's upward trend is intact.
The dollar rebounded against the euro and yen Tuesday after robust U.S. economic data reinforced expectations the Federal Reserve may start unwinding its stimulus program.
The dollar rose against the euro on Friday, recovering from an early swoon after better-than-expected U.S. durable goods data for April eased investor concerns about the U.S. economy.
The dollar was on track for its biggest daily drop in more than five weeks against the yen after a sharp slide in Japanese stocks and weak Chinese factory activity data.
The dollar rallied to trade at a fresh 4 1/2-year high against the yen after Fed Chairman Ben Bernanke warned that holding interest rates too low for too long has its risks.
The U.S. dollar fell against the euro on Tuesday after St. Louis Federal Reserve President James Bullard dented expectations the U.S. central bank may taper its bond purchases.
The U.S. dollar fell against the euro and yen on Monday as traders pared back expectations Federal Reserve Chairman Ben Bernanke would hint at tapering bond purchases this week.
The dollar rose against a swath of currencies on Friday, rocketing to 4 1/2-year high against Japan's yen.
The U.S. dollar recovered to trade higher against the euro and yen late Thursday afternoon in a volatile session that saw the U.S. currency swing between gains and losses.
The euro fell to a six-week low against a buoyant dollar on Wednesday, hurt by an unexpectedly large contraction of the euro zone economy.
The yen fell against the dollar on Tuesday for a fourth straight session, hitting its lowest level in 4 1/2 years as signs that the U.S. economy is improving.