How To Buy Stock Before Market Opens Thinkorswim. This will produce a populated trading ticket in the bottom portion of the platform. If the current close price is higher than the previous, the code opens the long position or closes the short one at the open price of the next bar.

In this case, when the news came out and the stock had closed at $7.73, one would need to decide if he wished to buy it at any cost, or place a limit order. Exchanges outside of the normal trading day, which runs from 9:30 a.m et to 4 p.m. This will produce a populated trading ticket in the bottom portion of the platform.