Thanks KL for your answer. Thanks also to the other contributor of the blog... I will continue monitor the ASX behaviors during the settlement period and see if it acts in similar manner as FTSE. I did trade both marked successfully during triple witching last month but I was very unsure about the time period of the ASX settlement so thanks again.
I'm actively trading the FSTE100 on expiry every third Friday in the month. I'm not looking in to do the same on ASX200 but are unable to find the period when the settlement period start and duration of it. The calendar is known https://www.asx.com.au/documents/products/expiry_calendar_2018.pdf but unsure on the settlement period. Is there anyone in the community that know this? Cheers Casemiro