The dollar held gains against the yen on Friday, but ended the week lower after a six-week winning streak, as investors await Donald Trump's presidential inauguration and clarity on the course of the incoming administration's policies.

His inauguration speech focused on emergencies in immigration and energy and a more expansionist foreign policy, including a pledge to take back the Panama Canal

The ICE DXY index, which tracks the dollar against six major currencies (euro, Swiss franc, yen, Canadian dollar, British pound, and Swedish krona), fell by 0.87%, while the broader WSJ Dollar Index rose by 0.

The U.S. dollar extended its fall after U.S. President-elect Donald Trump was quoted as saying he will not impose U.S. tariffs yet at his inauguration, which is set to take place later in the session.