What Time Do Options Start Trading?
What time do options start trading? US listed options open at 9:30 a.m. ET. Here is the 7:30 a.m. order acceptance window and the overnight index session.
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When Did the US Stock Market Start? 1792
The US stock market started with the 1792 Buttonwood Agreement, signed by 24 brokers. Every date that follows, and how a call auction became 9:30 to 4:00.