Singapore Dollar Currency Hits Decade-High as Safe-Haven Demand Grows. The US dollar index, which tracks the greenback against a basket of major currencies, fell 0.4 percent to its lowest level since September 2025, extending a 1.6 percent decline from the previous week. The drop followed a rate check conducted by the Federal Reserve Bank of New York on Jan 23, which fueled speculation that the US may support Japan in foreign exchange intervention efforts to weaken the dollar against the yen. Fo