Some of the main stock market exchanges are the Shanghai Stock Exchange, Swiss Exchange, London Stock Exchange, New York Stock Exchange, and Nasdaq. The New York Stock Exchange is open 6.5 hours per day which is average. Most stock exchanges are open 25 to 35 hours per week with 5 days of trading per The following is a list of opening and closing times for stock and futures exchanges worldwide. United States New York Stock Exchange, NYSE, United States, New York, EST, −5, Mar–Nov, 09:30, 16:00, No, 14:30, 21:00, No. United States