Under normal operation, the closing price of Hong Kong stocks is calculated according to the median of the five closing prices in the last minute of a continuous trading session. The system starts from 15:59 on time, and the stock is quoted once every 15 seconds, and the quotation is made five times. The bid price is determined according to Article 10 1 of the Trading Rules of the Stock Exchange, after comparing the then bid price, the selling price and the last recorded price. Choosing the median of five closing prices can minimize the impact of the transaction price on the closing price. For example:

Intake time buying price selling price The last recorded price is based on the selling price.

First time15: 59: 00 USD 39.40 USD 39.45 USD 39.45 USD 39.45 USD.

Second time15: 59:15 $39.40 $39.45 $39.45.

Third time15: 59: 30 USD 39.40 USD 39.45 USD 39.40 USD 39.40 USD.

Fourth time 15: 59: 45 USD 39.35 USD 39.45 USD 39.40 USD 39.40 USD

Fifth time16: 00: 00 $39.30 $39.35 $39.35 $39.35

From low to high, the prices of the above five issues are as follows:

$39.35 $39.40 $39.40 $39.45 $39.45

The median price is $39.40, so the closing price is $39.40.