In case you aren't aware, Monday October 13, is Columbus Day, a Federal holiday. What that means is that the post offices will be closed and the banks will also be closed.
However, for the stock markets, it is a little different. The New York Stock Exchange will be open and the NASDAQ will be open, but the bond market will be closed.
In regards to other upcoming holidays on the stock markets:
Veteran's Day, Nov. 11 Open
Thanksgiving, Nov. 27 Closed
Nov. 28 Closing early 1pm EST
Christmas Eve, Dec. 24 Closing early EST
Christmas, Dec. 25 Closed
New Years Eve, Dec. 31 Open
New Years Day, Jan. 1 Closed