USD / CHF Short. The US currency went lower today and fell to a three-week low as traders turn to riskier currencies in growing optimism about the economic recovery and as the global vaccination program accelerates. The dollar index, which measures the dollar against a basket of six other currencies, fell 0.1% to 90,347. It previously fell to 90,210, the lowest value since January 27. The minutes of the January FOMC meeting will be published on Wednesday, which could provide guidance on when the central bank decides to remove extremely cheap cheap incentives. Analysts expect the Fed to leave existing support measures unchanged, which would mean another possible weakening for the dollar, which could last until the second quarter.