Self-trading simultaneously increased transactions on HNX and UPCoM

While foreign investors reduced their transactions, both the HNX and UPCoM exchanges recorded transaction values ​​in the proprietary trading activities of securities companies last September.

According to the summary of Hanoi Stock Exchange (HNX), in September 2025, the listed stock market on HNX had many strong fluctuations and the price index tended to decrease.

The HNX-Index closed the last trading session of the month at 273.16 points, down 2.44% compared to the previous month. The highest point of this index was 283.99 points on September 4, 2025. Meanwhile, market liquidity decreased sharply, on average in September 2025, the trading volume reached 119.4 million shares/session, down 30.22% and the trading value decreased 28.76%, reaching VND 2,709 billion/session.

Foreign investors traded listed stocks on the HNX at a decrease of 40.74% compared to the previous month. Of which, the purchase value was over VND1,923 billion and the sale value was over VND3,090 billion, corresponding to a net selling value of over VND1,167 billion.

Meanwhile, the self-trading activities of listed stocks at HNX of member securities companies increased by 41% compared to the previous month, with a transaction value of more than VND673 billion (accounting for more than 2% of the total market), this group net sold more than VND367.1 billion in September.

By the end of September 2025, the stock market listed on HNX had 304 listed enterprises with a total listing value of over VND 168 trillion. The market capitalization value at the end of the month trading session reached over VND 407.5 trillion, an increase of 2% compared to August 2025.

The UPCoM market also recorded a downward trend in both index and liquidity. The UPCoM-Index ended the month at the session on September 30, 2025 at 110.01 points, down 0.99 points compared to the level of 111 points at the end of August 2025.

The average trading volume reached 54.43 million shares/session, down 48.9% compared to the previous month. The average trading value reached VND797.28 billion/session, down 47%.

Foreign investors' transactions in September 2025 continued to record a net selling status, with the buying volume reaching more than 8.06 million shares and the selling volume reaching nearly 32 million shares. The total net selling value was more than VND 542.8 billion in the month.

The total transaction value of the self-trading sector on the UPCoM market in September 2025 reached VND 568.83 billion, a sharp increase compared to VND 200.8 billion in August 2025. Of which, the purchase value reached VND 139.76 billion, the sale value reached VND 429.06 billion, corresponding to the self-trading sector of securities companies net selling VND 289.3 billion in the month.

The UPCoM market in September 2025 recorded 02 new enterprises registering for trading and 05 enterprises canceling their trading registration. As of September 30, 2025, the entire market had 883 enterprises registering for trading. The average market capitalization value in the month reached about 1,450 trillion VND, up 7.8% compared to 1,345 trillion VND of the previous month.

Source: https://baodautu.vn/tu-doanh-dong-loat-tang-giao-dich-tren-hnx-va-upcom-d406745.html