VN-Index closed October in the red, blue-chip stocks plummeted.

The Vietnamese stock market closed the trading session on October 31st with a sharp drop in the afternoon, as the portfolio restructuring effect of domestic ETFs exerted widespread selling pressure on large-cap stocks. Negative sentiment spread rapidly, resulting in a volatile trading session on the last day of October.

Cautious capital flows withdrew, causing the market to lose the 1,640-point mark in the red at the end of the month.

The VN-Index closed down 1.79%, or 29.92 points, falling to just over 1,639 points. This was the sharpest decline in over a week, extinguishing the index's recovery efforts in previous sessions. Notably, the decline occurred across major stocks, especially those in the VinGroup ecosystem and the banking sector.

VIC continued to be the main drag on the VN-Index, causing it to fall sharply by 6.42%, deducting 10.7 points from the index. VHM decreased by 4.62%, equivalent to -4.2 points. In addition, large-cap stocks such as VCB (-1.65%), BID (-1.32%), TCB (-1.68%), VPB (-1.71%), and MBB (-1.46%) were all in deep corrections. This simultaneous decline created significant pressure on the market.

Within the VN30 group, 21 out of 30 stocks declined, with 19 falling by more than 1% and 9 by more than 2%. Consequently, the VN30-Index plummeted by 2.07%, clearly reflecting the impact of portfolio restructuring by ETFs tracking the VN30 and VNFINLEAD. For example, MBB saw over 5.8 million shares sold, while TCB also experienced selling pressure of over 5 million units.

Conversely,FPT was one of the few to maintain a positive trend (+1.17%) and even contributed significantly to liquidity, but FPT's own upward momentum was not enough to offset the widespread selling pressure among the leading stocks.

Liquidity on the HoSE increased sharply with 837 million shares traded, equivalent to VND 27,185 billion. This signals increased selling pressure, especially in the context of ETF restructuring. However, the total value of matched orders across all three exchanges only reached nearly VND 29,612 billion, still far below the average of VND 47,557 billion per day of the previous week.

This shows that bargain-hunting activity remains cautious, with investors still prioritizing holding cash amid the risk of further market corrections.

Market breadth heavily skewed towards sellers: 190 stocks declined compared to 127 stocks increased on the HoSE. As many as 115 stocks fell by more than 1%, reflecting the prevailing negative sentiment. Many speculative and mid-cap stocks also plummeted: GEX continued its second consecutive day of limit-down trading, with trading volume exceeding VND 1,253 billion; VIX fell 4.44% with nearly VND 1,373 billion in liquidity; CII (-1.43%), DXG (-4.48%), HCM (-1.06%), and GMD (-3.4%) all traded over VND 300 billion.

The fact that over 62% of the trading value fell into the group of stocks that experienced sharp declines indicates that the level of losses incurred by investors during the session was quite significant.

Foreign investors continued to maintain a net selling position on the HoSE with a value of 461 billion VND, focusing on key stocks: VIC, VHM, CTG, MBB, and HPG, all of which saw selling pressure exceeding 100 billion VND; VIX was a rare bright spot with net buying of 107 billion VND.

Pressure from foreign capital inflows is making it difficult for the market to maintain its recovery momentum in the short term. After four sessions of attempts to reclaim the psychological 1,700-point mark but failing, the VN-Index plummeted to 1,639 points. According to current signals, the risk of a further decline to the 1,600-point level is clearly increasing.

The market has passed the peak of Q3 2025 earnings announcements, while new supporting factors have yet to emerge. Investors have reason to wait for more attractive prices in subsequent corrections.

With the sharp decline in blue-chip stocks and shrinking cash flow, the market is likely to enter a consolidation phase, accumulating at a new price level. Short-term speculative opportunities will only appear in a few stocks with unique stories, while a defensive strategy prioritizing risk management is recommended in the current context.

October ended in the red, leaving considerable pressure on market movements in the coming weeks. Investors need to closely monitor foreign capital flows, ETF performance, and the resilience of blue-chip stocks, as these are key to the overall trend of the VN-Index in the near future.

Source: https://thoibaonganhang.vn/vn-index-khep-lai-thang-10-trong-sac-do-co-phieu-blue-chips-lao-doc-172883.html