India, Feb. 3 -- Trump's tariff threats rattled currency markets during the week ended January 31, lifting the Dollar against most major currencies. The Dollar firmed up against the euro, the British pound, the Australian dollar, the Swedish krona, the Canadian dollar and the Swiss franc. It however weakened against the Japanese yen.

The Dollar Index, a measure of the Dollar's strength against a basket of currencies comprising the euro, the British pound, the Japanese yen, the Canadian Dollar, the Swedish Krona, and the Swiss franc closed trading 0.87 percent higher at 108.37 on January 31 versus 107.44 a week earlier. The week's trading range was much wider, oscillating between the low of 106.97 recorded on Monday and the high of 108.57 r...