How President Trump and the dollar might affect your investment portfolio - MarketWatch

1. U.S. markets closed for Martin Luther King Jr. Day, limiting trading activity. 2. Trump's weak dollar stance could influence trade and export dynamics. 3. DXY has risen 20% over four years, impacting global economic perspectives. 4. Mixed signals on inflation create uncertainty for interest rates and stock prices. 5. Investors surveyed show surprising trends regarding risk-tolerance across age groups.