A Stop with Protection order combines the functionality of a stop limit order with a market with protection order. The order is set to trigger at a specified stop price. When the stop price is penetrated, the order is triggered as a market with protection order, which means that it will fill within a specified protected price range equal to the trigger price +/- the exchange-defined protection point range. Any portion of the order that does not fill within this protected range is submitted as a limit order at the exchange-defined trigger price +/- the protection points. Note, as the Stop with Protection order type is a simulated order type and thus handled on a best efforts basis, it is possible no execution may occur in the event the market price immediately moves away from the trigger price.
For instructions on how to create a Stop Order with Protection, please visit the TWS User's Guide.
To review information on the CME's web site for "How Protections Points are Used" click here.