To roll only two legs of a four legged combo in TWS:
- Expand the combo by clicking the plus "+" sign next to the Complex Position description in the Financial Instrument column. This will show you the individual legs that are included in the option combo
- Right-click on one of the individual options that you want to roll and click on ROLL COMBO CALLS or ROLL COMBO PUTS to open the Roll Builder tool
Please Note:
- By using these buttons, the remaining option leg from the previous complex position will be included along with your new option and will be displayed as a new Complex Position spread strategy
- If you do not use this button and you create a new spread order with a different spread builder tool, the remaining option leg from the old complex position and the new option will be listed as individual positions.
Once the Roll Builder is open:
- The current multi-leg position appears at the top and shows each individual leg, highlighted in red for sells and blue for buys. For each highlighted leg of the combination, select the contract you want to roll into from the option chains
- As you build the new combination, it is shown below the current combo position in the Open section of the Roll Builder. When adding new legs, we pre-select the buy/sell action to logically match your original combination
- Note that the ratio is set by default to 1
- Review and edit the order details in the Order Entry line
- Check the Margin Impact in the Order Entry line
- Click Margin Impact to display the Estimated Combo Premium, Estimated Existing Combo Premium and Roll to Estimated Combo Premium.
- Click Submit Order, check the Order Preview and hit Transmit.
More information on the Roll Builder tool can be found in our Users' Guide.