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港交所(00388.HK)拟次季起优化期指市调机制
阿思达克 01-07 08:39
港交所(00388.HK)公布,计划次季起优化衍生产品市场的市场波动调节机制(市调机制)及开市前时段,容许市调机制於每个交易时段可被多次触发,以保护市场持正操作。当触发市调机制时,若价格相对5分钟前的最後交易价变动幅度超过5%,便会触发一次5分钟的冷静期。机制适用於恒生指数期货、小型恒生指数期货、恒生中国企业指数期货及小型恒生中国企业指数期货的首两个合约月份,总计8个合约。

衍生产品市调机制於2017年初推出时,港交所采用较宽松及简单易行的模式,每个交易时段最多触发一次。港交所表示,现时市调机制已为市场所熟悉并广泛接纳,为进一步维护市场操作,计划加强市调机制,容许於每个交易时段可被多次触发。

另外,於开市前议价时段内,系统会在开市前不经对盘程序而定出「拟定开市价」,港交所计划在开市前时段及开市前分配时段设立随机停止机制,以防止竞价过程接近结束时可能出现的投机行为,并鼓励尽早输入买卖盘。

因应随机停止机制,开市前时段将会缩短1分钟,开市前分配时段亦将延长1分钟。机制适用於早市和午市的开市前议价时段,以及具有优化开市前时段的相关产品。

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