*Escalation of Ukraine tensions pushes up yen, Swiss franc. LONDON, Aug 28- The yen and Swiss franc gained on Thursday, while the euro fell, as concerns about a serious escalation in tensions between Ukraine and Russia rattled investors and drove them to seek safe-haven currencies.» Read More
The dollar rose to a six-month high against a basket of currencies, buoyed by gains against the euro on growing evidence the U.S. economy was showing signs of improving.
Stalemate in the United States over automatic government spending cuts due to take effect March 1 and an inconclusive election in Italy undermined the euro on Thursday.
The euro traded flat against the U.S. dollar and yen on Tuesday, recouping early losses with the help of U.S. central bank assurances that a bond-buying stimulus program will remain in place.
The U.S. dollar and euro fell sharply in late afternoon trade as uncertainty about Italy's elections and sharp losses in stocks led investors to unwind trades funded in yen.
The euro hit a six-week low against the dollar Friday, heading for a third straight week of losses, after the European Central Bank said banks will repay less than half the expected amount of loans.
After several lackluster years, the $5 trillion foreign exchange market has bolted back to life with institutional investors leading the charge and banks standing to gain from the activity.
The euro dropped to a six-week low against the dollar and a three-week trough against the yen Thursday in the wake of data showing a struggling euro zone economy.
The dollar jumped to a four-week high after minutes from the Federal Reserve's last meeting suggested policymakers may have to slow or stop buying assets before seeing the pick-up in hiring.
Hints of potential new pro-stimulus sentiment at the Bank of England weigh on the pound and intervention talk pulls down the kiwi - it's time for your FX Fix.
The yen rose Tuesday as disagreement between Japanese officials raised doubts over how aggressively Japan will ease its monetary policy.
Brendan Brown, Head of Research at Mitsubishi UFJ Securities International says Japan and Switzerland share many similarities in their economies, so the CHFJPY cross always returns to the 100 level.
The yen weakened across the board on Monday after Japan escaped direct criticism from its G-20 peers on its bold reflationary plans that have weakened the currency.
Australian Treasurer Wayne Swan dismissed talk of a 'currency war' in an interview with CNBC, but concedes that a strong Australian dollar is a concern for an economy that's heavily reliant on mining exports.
The Group of 20 nations declared on Saturday there would be no 'currency war' and deferred plans to set new debt-cutting targets in an indication of concern about the fragile state of the world economy.
The yen fell Friday after three days of gains against the U.S. dollar and the euro as a draft statement from the G-20 did not single out Japan trying to weaken its currency.
As G-20 finance chiefs from around the world meet on Friday to discuss fears of competitive currency devaluations, policymakers told CNBC that talk of a currency war was misplaced and discussions should instead focus on a how to heal the still fragile global economy.
The euro tumbled to a three-week low against the dollar and plunged against the yen Thursday after data painted a dismal picture of the euro zone's economy, increasing the likelihood of ECB action.
The yen traded flat against the dollar Wednesday, a day after sharply rising, as investors grew cautious ahead of a meeting of finance ministers and central bankers later this week.