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4.2.1 The opening price of a security on a trading day is the first execution price of such a security on that day.
4.2.2 The opening price of a security is generated from a call auction. In case no opening price is generated at a call auction, the opening price will be generated from the continuous auction.
4.2.3 The closing price of a security is generated from a call auction. In case no closing price is generated from the closing call auction, the trading volume-weighted average price of all the trades of the security one minute before the last trade (including the last trade) on that day is taken as the closing price.
In the absence of trades on a trading day, the previous closing price is taken as the closing price of that day. |
