The June 19 holiday marks the day in 1865 on which federal troops came to Galveston, Texas, to free enslaved Black people in the state — almost 2½ years after President Abraham Lincoln signed the Emancipation Proclamation, on Jan. 1, 1863.

Here’s what investors should know about trading hours on Thursday. Is the Stock Market Open or Closed on Juneteenth? The New York Stock Exchange and the Nasdaq Stock Market will