Change in Hang Seng update frequency planned
February 28, 2011 Category Stock Markets, Weekly
The Hang Seng Index plans to provide investors with split-second updates of benchmark changes. The index is now only updated every 15 seconds, meaning it lags behind indexes in other major trading centers where data is often updated in real time. Index compiler Hang Seng Indexes is concerned that the move may give investors too much information. The Shanghai Stock Exchange Composite Index is updated every six seconds and Shenzhen Stock Exchange Component Index is updated every five seconds. If the index compiler does decide to speed up updates, it will be the first change in frequency in a decade. The Hang Seng Index, launched in the 1960s, was originally only updated three times a day at 11 am, 12.30 pm and at the market close. In 1986, frequency was changed to every minute. In 1999, it changed to every 15 seconds after the government introduced the Tracker Fund.
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