Hong Kong Exchanges and Clearing Limited (HKEx) has announced revised requirements for stock options market makers in HKEx’s derivatives market. The changes are expected to help enhance market makers’ services and response rates.

From 2 July, market makers obliged to respond to quote requests will be required to respond to at least 200 quote requests per minute (the current requirement is at least 50 quote requests per minute).

Under the new requirements, market makers will be required to provide price quotes for 30 or more contracts from stock option classes under Liquidity Level 1* and 15 or more contracts from classes under Liquidity Level 2* (the current minimums are 60 Level 1 contracts and 30 Level 2 contracts).