@Seth. Bse has a maximum limit of 90 percent as upper cercuit in SME pre open listing. Once settled in pre open at 9:45, it can mover firther five percent on the pre open discovered price.
In this case, 90 percent of 66 is 59.60, this will open @ 125.60 (in all probability).
After that it can trade plus minus five percent of 125.60 for the day.
Again fastest fingures first game to be played on listing date.