Notes on historic market capitalisations

Listing Rules have required issuers to file month-end returns of outstanding shares from 2008-12-31 onwards, so we restrict the search to that range, for which our dataset is complete.
If you want accurate outstanding shares then pick the last calendar day of a month, even if it is on a weekend. If you pick a trading day that is not a calendar month-end, then you will be using data for outstanding shares on or prior to that date.
We usually update month-end outstanding shares by the middle of the next month.
The number of issued shares is the last known figure on or prior to your chosen date.
By default, we include pending shares, but you can check the box to exclude them. Pending shares are those not yet issued for bonus issues, rights issues, open offers and scrip-only dividends (which are bonus issues in disguise), where the stock is trading ex-entitlement to those shares.
Suspended stocks are shown at their last closing price with the last outstanding shares on or prior to the suspension date.
While a stock is on a temporary "parallel trading" stock code, we show the last closing price and outstanding shares before that.
The market caps are for the class of shares, so they exclude any other shares of the issuer, such as mainland-listed shares and unlisted shares.
Preference shares (often issued by banks) are excluded because they normally have a zero quoted price, never having traded on SEHK. They are listed just so that the issuer can claim that they are listed, but no trading occurs on the exchange.
Closing prices are usually updated by 21:45 HK time.

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