Currently, the options contracts of Bank Nifty have weekly and monthly expiries. The weekly expiry is on Wednesday of each week, while the monthly expiry is on the last Thursday of each month.
For the January expiry, the monthly contracts of Bank Nifty will expire on the last Thursday of the month, which is on the 25th and the last weekly expiry for January will be on Wednesday, 31st January.
Whenever there is a monthly expiry, there are no weekly expiry contracts for trading as the monthly expiry contract also doubles up as a weekly expiry contract.
On Kite, the monthly expiry contracts don’t have an expiry date in the scrip name and will be displayed as shown in the picture below. You can check the expiry date in the market depth window.
The weekly expiry contracts on the other hand have an expiry date in the scrip name👇
Note: Effective March 01, 2024, Bank Nifty’s monthly and quarterly F&O contracts will expire on Wednesdays. Existing monthly and quarterly F&O contracts with a Thursday expiry date will be changed to Wednesday from March 01, 2024, on Kite. Weekly expiry contracts will continue to expire on the Wednesday of each week. Learn more: Revision in expiry day of monthly and quarterly Bank Nifty F&O contracts from Thursday to Wednesday