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Thank you for the compliment, but I wasn't profitable in the beginning. It took several years to figure this out before the final system was programmed and complete.
I have to manually click the transmit button on the semi-automated bracket order "after the option opens."
Here is the reason why its not total automation: If the option opens with a severe gap down opening that is below my pre-determined Buy Limit, I then need to change the bracket parameters (Buy Limit, Sell Limit & Stop) before transmitting the order.
Example: Lets say my original Bracket is Buy Limit=1.50 Sell Limit=1.90 Stop=1.10 and the option opens at 1.20. If I had already transmitted my bracket order manually or used total automation like I.B.'s API (Automatic Programming Interface), the Buy Limit would have filled at approximately 1.20 (+ or - a bit). With the Stop in the program set at 1.10, the possibility of a Gap Down opening dropping another -.10 is almost a certainty and the trade would have lost because because the program was set in motion pre-market.
In this case I would adjust the bracket to: Buy Limit=1.20, Sell Limit=1.60, Stop=0.80.
You really need to wait and see the opening price and then if a big gap down opening, adjust accordingly. It happens too often.