ACB foreign flow Impact 3.5/10 Risk signal -3.5

Foreign and Proprietary Traders Net Sell on HOSE May 18; ACB, HPG Lead Outflows

This Aveluro analysis covers ACB (Á Châu) in the Banking sector. The classified event type is foreign flow, with negative sentiment and a deterministic market-impact score of 3.5/10. Aveluro classifies this story as a negative catalyst and risk signal for the affected stock. Source coverage came from Vietstock - Cổ phiếu, classified as a primary/top-tier source.

Event
Foreign Flow
Sentiment
Negative
Time horizon
Short Term
Credibility
Primary/top-tier source
Published
Impact score
3.5/10
Price context
22,650 VND · -0.66%
Foreign net flow usd m
-27.76
Affected

Caveat: Not investment advice. · How Aveluro computed this: Aveluro combines extracted event facts, source credibility, ticker context, and market data. Scores are deterministic research signals, not recommendations.

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The Takeaway On May 18, foreign investors net sold over 694B VND (~$27.76M) on HOSE, with ACB and HPG leading outflows at 170B and 136B VND respectively. Proprietary traders also net sold for the seventh consecutive session. VCB bucked the trend with net buying of 232B VND.
Source: Theo dấu dòng tiền cá mập 18/05: Tự doanh, khối ngoại cùng bán ròng · Vietstock - Cổ phiếu · Source tier: Primary/top-tier source

Overview

On May 18, both proprietary traders and foreign investors were net sellers on the HOSE exchange, despite the VN-Index recovering to close up 6.34 points at 1,927.94. Foreign net selling reached over 694 billion VND (~$27.76 million), with ACB and HPG among the most sold stocks. VCB saw significant net buying of 232 billion VND.

Key Facts

  • Foreign investors net sold over 694 billion VND (~$27.76 million) across HOSE, HNX, and UPCoM on May 18.
  • ACB was the most sold foreign stock, with net selling of 170 billion VND.
  • HPG followed with net foreign selling of 136 billion VND.
  • VCB was the top net bought stock by foreign investors, with net buying of 232 billion VND.
  • Proprietary traders net sold 635 billion VND, marking the seventh consecutive session of net selling.
  • Top proprietary net sold stocks were MBB (146 billion VND) and CTG (105 billion VND).
  • STB was the top proprietary net bought stock, with net buying of 56 billion VND.

What Happened

On May 18, the VN-Index opened lower, falling over 12 points in the morning session, before recovering in the afternoon to close at 1,927.94, up 6.34 points. Despite the index’s recovery, both proprietary traders and foreign investors were net sellers on HOSE.

Proprietary traders recorded a net sell of 635 billion VND, extending their selling streak to seven consecutive sessions. The strongest selling was in bank stocks MBB and CTG, with net sells of 146 billion VND and 105 billion VND, respectively. STB was the most net bought by proprietary traders at 56 billion VND.

Foreign investors net sold over 694 billion VND across the three exchanges, continuing a persistent selling trend seen throughout the year. The most sold stocks were ACB (170 billion VND) and HPG (136 billion VND). In contrast, VCB saw strong net buying of 232 billion VND, though this was insufficient to offset overall foreign outflows.

Market Context

ACB closed at 23,000 VND on May 18, down 1.29% on volume of 11.1 million shares. HPG fell 0.38% to 26,450 VND. MBB and CTG also saw net selling pressure from proprietary traders. The persistent foreign selling, despite market upgrade prospects, has weighed on sentiment. VCB’s strong net buying stands out as a divergence within the banking sector.

Strategic Significance

The continued foreign net selling, particularly in ACB and HPG, suggests ongoing risk-off positioning by international investors despite Vietnam’s potential market upgrade. The divergence between VCB and other banks may reflect relative valuation or sector-specific factors. Proprietary traders’ seven-day selling streak indicates cautious domestic institutional sentiment.

What to Watch

  • Foreign flow data for the remainder of May to see if selling accelerates or stabilizes.
  • Any announcements regarding market upgrade timeline or index inclusion.
  • Q2 earnings reports from ACB, HPG, and VCB for fundamental catalysts.
  • Proprietary trading activity for signs of reversal in sentiment.
  • SBV policy moves that could impact banking sector liquidity and foreign ownership limits.

Information provided for educational purposes only. Past performance does not guarantee future results. Data sourced from public Vietnamese market feeds.

Last updated: 2026-05-18T12:21:37.818497+00:00.

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