Modify/Cancel Orders in Scottrader
To modify an open order in your account, click the Open Orders button at the top left of the Quote Grid window and then click the Modify link of the order you want to change. Depending on the type of order, the pop-up window that appears will be labeled Standard Trade, Advanced Trade or Option Trade. In all window types, you will see the details of your existing order listed at the top of the window. You may make changes to your order by using the entry fields provided on the lower half of the page.
To cancel an order, click the Cancel link in the Open Orders window. A dialog box will appear to confirm your intent to cancel the order. Click OK.