Securities companies' self-trading block massively 'dumping goods' on HNX
Capital flows are sharply differentiated. The self-trading sector of securities companies has strongly withdrawn on the HNX but bought lightly on UPCoM, opposite to the trend of foreign investors, creating a dramatic picture.
Báo Tuổi Trẻ•10/09/2025
Capital flows of securities companies' self-trading sector and foreign investors have had mixed developments in recent times - Photo: QUANG DINH Strong net selling on HNX floor
The Hanoi Stock Exchange (HNX) has just announced a summary of trading data for last month, showing contrasting movements from foreign investors and the self-trading sector of securities companies.
Accordingly, on the HNX floor, the trading picture shows two contrasting colors. Although the self-trading block increased its trading by nearly 8% compared to the previous month, reaching nearly 480 billion VND (accounting for more than 2% of the total market), it still sold strongly by nearly 280 billion VND.
On the contrary, the block became a bright spot when it increased its activities strongly, with transaction value increasing by 38% compared to the previous month. This group bought more than 4,480 billion VND and sold nearly 3,980 billion VND, thereby recording a net purchase of over 500 billion VND, creating significant support for the market.
In terms of indexes, the HNX-Index increased by nearly 6% in the past month. Liquidity improved significantly with an average trading volume of more than 171 million shares/session (+20%) and a value of over VND3,800 billion/session (+14%). Of which, the session 5-8 alone set a record with 258.5 million shares, equivalent to VND5,700 billion.
As of the end of the month, this floor had 304 listed enterprises with a total listed value of more than 166,000 billion VND. Market capitalization reached 388,100 billion VND (-1%).
Cash flow improved on UPCoM, self-trading slightly net bought
At the same time, transactions on the UPCoM market continued to record net selling pressure from foreign investors. Foreign investors sold nearly 68 million shares while only buying 19 million shares, equivalent to a net selling value of more than VND 1,010 billion.
At the same time, proprietary trading activities decreased sharply when the total transaction value only reached about 200 billion VND, nearly 65% lower than the previous month. Of which, the proprietary trading block bought nearly 120 billion VND, sold nearly 83 billion VND, recording a net purchase of more than 37 billion VND.
In terms of listing, UPCoM has 3 new businesses listed and 2 businesses canceling trading registration.
As of the end of last month, the entire market had 888 enterprises, with an average capitalization value of about 1.3 million billion VND, a slight decrease of 5.8% compared to the end of July.
Overall, the market maintained a positive trend in both scores and liquidity. The UPCoM-Index closed last month at 111 points (+5.41 points). Liquidity also improved, with an average trading volume of over 106 million shares/session (+18%) and an average trading value of over VND1,500 billion/session (+9%).
Foreign investors may continue net selling
Although red covered most of the trading session today, September 10, the VN-Index still officially recovered to above 1,643 points at the close of the session, equivalent to an increase of nearly 6 points (+0.36%).
Green also remained in the UPCoM market, increasing slightly by 0.48 points (+0.44%) to 110.37 points. On the contrary, the general situation in HNX still could not escape the selling, decreasing slightly by 0.22 points (-0.08%) to 274.6 points.
Mr. Nguyen The Minh - Director of analysis for individual clients of Yuanta Vietnam Securities - said that last week, foreign investors continued to net sell nearly 3,000 billion VND in the entire Vietnamese stock market, marking a series of 7 consecutive weeks of capital withdrawal since the end of July.
Selling pressure was concentrated in large stocks such as VPB ( VPBank , -870 billion VND), VHM (Vinhomes, -500 billion VND) and MWG (Mobile World, -420 billion VND). On the contrary, there was a strong net buying flow in MSB Bank (+350 billion VND), DIC Group (DIG, +240 billion VND) and Nam Kim Steel (NKG, +190 billion VND).
According to Mr. Minh, during the stock trading week from September 8 to 12, 2025, increased exchange rate pressure could cause the net selling trend of foreign investors to continue.
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