On May 21, Guotai Junan International rose 5.31% in regular trading, trading at HKD 2.36 per share, with trading volume of approximately HKD 101 million.

On the news front, the company's Vietnam subsidiary delivered its best-ever first-quarter performance, with revenue surging 65% year-over-year and pre-tax profit soaring 163%. Margin financing business grew 72%, while client account openings increased over 37% year-over-year, validating the overseas expansion thesis. Additionally, S&P recently published a brief highlighting the company's key role in the group's internationalization strategy.

The broader investment banking and brokerage sector rallied in tandem, with CMSC up 5.41%, CITIC Securities up 4.75%, Orient Securities up 4.55%, and CICC up 3.66%, reflecting strong sector-wide momentum. The combination of robust fundamental catalysts from overseas growth and sector linkage effects drove the stock higher.

(The above content is based on publicly available market information, generated by a program or algorithm, and is intended solely as a stock movement alert. It does not constitute investment advice or a basis for trading decisions.)