Anyway big option barrier is a target for Banks an funds as if they have that as their target and it gets hit they get paid.. so the bigger the option barrier the more chance in a sense is it will be hit in a day or so.....
And its not surprising there being an option barrier at 12720 etc as we will move to critical level at around 12785/128.. people will try and take it lower low from the initial move.. but we break above Weekly S1 then that will be unlikely and we will retrace and go higher