This follows the favourable market response to the implementation of narrower strike intervals for Options on HSBC Holdings plc and Hang Seng Bank Limited in April this year.
Example:
If underlying price of Options on Cheung Kong (Holdings) Ltd is $63.25, the strike series currently available for both puts and calls for the next calendar contract month is $55.00, $60.00, $65.00, $70.00, $75.00.
After implementation of narrower strike intervals, $57.50, $62.50, and $67.50 will be added.