VIX hit by VND 206B proprietary sell-off on Sept 8 as broker desks trim

Overview

On September 8, proprietary trading desks at Vietnamese securities firms unexpectedly net sold VND 153 billion on HOSE, with the heaviest selling concentrated in VIX (Chứng khoán VIX), which saw net outflows of VND 206 billion. The sell-off occurred despite a positive market session, as the VN-Index rose 0.44% to 1,830.44 points, but foreign investors also net sold approximately VND 385 billion across the entire market.

Key Facts

• VIX recorded the largest proprietary net sell on HOSE at -VND 206 billion on September 8.
• Total proprietary net selling on HOSE reached VND 153 billion during the session.
• Foreign investors net sold about VND 385 billion of stocks across the whole market on the same day.
• Other stocks with notable proprietary net selling included MCH (-VND 16 billion), NAF (-VND 15 billion), ACB (-VND 8 billion), and MBB (-VND 6 billion).
• On the buying side, E1VFVN30 led with net purchases of VND 35 billion, followed by TCB (VND 21 billion), VCB (VND 10 billion), and HPG (VND 8 billion).
• VIX closed at VND 13,750 on September 8, according to price data.

What Happened

On September 8, proprietary trading desks of securities companies unexpectedly sold a significant amount of shares, with VIX bearing the brunt of the sell-off. According to data from the session, proprietary desks net sold VND 153 billion on HOSE, with VIX alone accounting for VND 206 billion in net selling. This indicates that brokerages reduced their holdings in the securities stock, possibly to lock in profits or rebalance portfolios.

The broader market showed resilience, with the VN-Index gaining 8.80 points to close at 1,830.44, but foreign investors remained net sellers, offloading approximately VND 385 billion across the market. The selling pressure from both proprietary desks and foreign investors highlights cautious sentiment among institutional players despite the index’s uptick.

Market Context

VIX, listed on HOSE, closed at VND 13,750 on September 8. The stock has been part of the securities sector, which has seen increased volatility as trading volumes fluctuate. The proprietary sell-off in VIX aligns with a broader trend of profit-taking in the sector, especially after a period of strong gains. Foreign investors also reduced exposure, contributing to the negative flow picture. The VN-Index’s modest rise suggests that domestic retail investors provided support, but institutional selling remains a headwind.

Strategic Significance

For long-term investors, the heavy proprietary selling in VIX signals that brokerages themselves are cautious about the stock’s near-term valuation. Securities firms often have insider knowledge of trading flows, so their selling could indicate expectations of lower trading activity or margin pressure. However, such moves can also be tactical, and the stock’s fundamentals, including its role in the growing Vietnamese capital market, remain intact. Investors should monitor whether this selling persists or is a one-off adjustment.

What to Watch

• Subsequent proprietary trading data for VIX to see if selling continues or reverses.
• VIX’s quarterly earnings report for any changes in trading revenue or market share.
• Foreign ownership levels in VIX and any filings related to large block trades.
• Market-wide trading volume trends, as lower activity could pressure securities firms’ earnings.
• Any regulatory changes affecting the securities sector or margin lending policies.