How can I trade stocks during the pre market or post market?

概観: 

By default, orders for some products are entered with a restriction referred to as Regular Trading Hours (RTH) Only.  This restriction may prevent submitted orders from executing during the pre and post market sessions.  The following article will clarify this time restriction as well as how it can be modified.

 

 

Background: 

There are risks inherent in trading outside of Regular Trading Hours (RTH) including reduced liquidity, increased volatility, and expanded error trade guidelines  that traders should be aware of and willing to assume prior to transmitting active orders into the market during these times.

 

 

Contents:

How to determine if a submitted order has a RTH restriction applied.

Changing Default Settings

Other Important Notes

 

 

How to determine if a submitted order has a RTH restriction applied.

 

Trader Workstation (TWS)

Orders restricted to RTH only will display a clock icon in the Time in Force (TIF) field.

Hold your mouse over the clock icon to display information regarding when the order can be filled.

         

Orders without a time restriction will either display no clock icon or will display the clock icon with an exclamation point over it to indicate that it will be active outside of the regular trading session.

         

 Traders may change the RTH setting by clicking this field before the order has been transmitted.  From the dropdown that appears, check the box that says "Fill outside RTH".

 

Web Trader

The Create Order window in the Web Trader displays a checkbox that says "Fill Outside Regular Trading Hour".  If this box is grayed out, it indicates that the RTH setting is not applicable for the default order type.

 

Note:  The RTH restriction cannot be modified once an order has been transmitted.  In order to change the RTH restriction the submitted order must be canceled and a new order entered with the appropriate RTH selection.

Changing Default Settings

 

Web Trader

The web trader does not support saving of default order types and configurations.  As a result, traders must select the RTH option for each order created if the intention is for it to be active outside of the regular trading session.

 

Trader Workstation (TWS)

Traders can adjust the default RTH setting in the TWS as follows;

1.  From the Edit >> Global Configuration menu at the top of the main TWS screen. 

           

2. On the left side of the window that appears, click the "+" next to the word Presets to expand the section.

         

2.  Next, select the product type (Stocks, Futures, etc.) by clicking on the word so that it is highlighted.

         

3.  In the Primary Order section, be sure the Order Type is set to LMT. (if MKT or STP is set as the default the RTH setting will not be applicable).

         

4.  In the Timing section, check the box that says "Allow order to be activated, triggered, or filled outside of regular trading hours".

         

5.  Click Apply and then OK at the bottom of the window.

6.  Orders that support modification of the RTH restriction (for the product selected in step #1) will be created with the new default applied.

 

Other Important Notes:

 

* Traders unfamiliar with the Regular Trading Hours for a particular product may right click on the market data line and choose Contract Info >> Description.  This window will list the Regular Trading Hours for the selected product.

* Forex, OTCBB, and Pink Sheet securities do not have a Regular Trading Hours designation as there is no centralized marketplace or primary exchange.  Traders should use caution when trading these products during the early and late sessions as orders will execute regardless of any default RTH restriction previously applied.

 

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