Exchange needs to update the daily security file with the updated expiry date, once it is updated. It will start reflecting in the kite instruments file as well.
A. This is really too short a time period for the updated instruments file. Effectively, the file is updated in the middle of the week of expiry change, of the most heavily traded weekly contract (in the world?). Not even one trading day of live testing available for the changed contracts.
B. According to the notice - Banknifty Weeklies to expire on Wednesday. Monthlies on the last Thursday.
What if monthly expiry (Thursday) falls on 25th of a 31-day month? Monthly contract to expire on 25th; 31st will be a Wednesday but will there be a weekly contract for 31st?
Similarly, what if monthly expiry (Thursday) falls on 24th of a 30-day month?
Are there any other contracts with such dual expiries or Banknifty is the first?
2023-09-06.B. According to the notice - Banknifty Weeklies to expire on Wednesday. Monthlies on the last Thursday.
What if monthly expiry (Thursday) falls on 25th of a 31-day month? Monthly contract to expire on 25th; 31st will be a Wednesday but will there be a weekly contract for 31st?
Similarly, what if monthly expiry (Thursday) falls on 24th of a 30-day month?
Are there any other contracts with such dual expiries or Banknifty is the first?