It was first proposed four days after King's 1968 assassination outside a Memphis motel. It took 15 years until it became a federal holiday.

— Martin Luther King Jr.‘s “I Have a Dream” speech

Less than two weeks after the stock market shuttered for former President Jimmy Carter’s state funeral, investors may be looking for another break on Martin Luther King Jr. Day. This year, the annual day of remembrance for the civil rights leader happens to coincide with Donald Trump’s inauguration as the 47th president.