Active quotes will not be provided where one of the exemptions set out in paragraph 3.3 of the Industry Principles applies. For example, the liquidity providers need not provide active quotes where:
(a) the theoretical value is less than HK$0.01
(b) there is a technical failure and operational problems beyond the control of the liquidity provider; or
(c) the underlying asset or the stock market experiences exceptional price movement and high volatility over a short period of time which materially affects the liquidity provider’s hedging ability.
Remember that active quotes are not continuous. You could contact the liquidity provider if you have any questions about liquidity.