Money Stock market is open for full day of trading New Year’s Eve, but closed Jan. 1 for New Year’s Day December 30, 2018Adam Shell, USA TODAYComments Off on Stock market is open for full day of trading New Year’s Eve, but closed Jan. 1 for New Year’s Day The stock market will be open for a full day of trading on New Year's Eve, Monday, Dec. 31, but closed for New Year's Day on Tuesday, Jan. 1.