Add % Offset to the Parent Order Strike | Voters

Add % Offset to the Parent Order Strike

maybe? someday?

Izzy

Add the option to offset the parent order by %.

For example if the 25 delta lands at 6500 for a call and I want the link/child to be 1% of the underlying away the BT will select 6565 as the strike for the linked order.

August 11, 2025

Brian Chia

Merged in a post:

Strike (Width) selection based on % of Notional Size of Underlying

Ben

This would allow the trade to scale its risk profile to match the size of the underlying, which in the case of SPY has doubled since 2017. This would allow testing strategies on longer timeframes.

June 9, 2026

Kevin Smith

I think this is a great idea. Currently the available parent off sets are delta, parent offset and fixed premium. The SPX has gone from 4,000 to 7,000 since 0 DTEs launched. This means parent off set of 60 or 70 is VERY different for the start of the testing time frame (SPX=4000) versus more recent times (SPX=7000).
This problem makes back testing butterflies more difficult. I currently break the back test into 4,000 - 5,000, 5,000 - 6,000 and 6,000 - 7,000 ranges of time.
Percentage offset would help a lot here.

rusty.moorman@optionomega.com

updated the status to

maybe? someday?