Vietnam Stock Market Awaits FTSE Emerging Market Upgrade in September 2026, ACBS Estimates $128M Foreign Net Buying

Overview

FTSE Russell will officially upgrade Vietnam to emerging market status in September 2026, a milestone expected to trigger passive fund inflows. ACBS Securities estimates net foreign buying of about USD 128 million (VND 3,371 billion) across 19 stocks meeting FTSE Global Equity Index Series (FTSE GEIS) criteria. VIC and VHM are projected to attract the largest inflows, reflecting their dominant market capitalization and liquidity.

Key Facts

• FTSE Russell will upgrade Vietnam to Emerging Market status effective September 21, 2026, with the official constituent list published on August 21, 2026.
• ACBS estimates total net foreign buying of approximately USD 128 million (VND 3,371 billion) during the September 2026 rebalancing period.
• 19 stocks are projected to meet FTSE GEIS selection criteria: 4 large-cap, 1 mid-cap, and 14 small-cap based on data as of June 30, 2026.
• VIC leads with estimated net buying of USD 60.08 million (VND 1,580 billion), followed by VHM at USD 18.94 million (VND 498 billion).
• Other large-cap stocks include VCB (estimated VND 136 billion) and BID (VND 49 billion). HPG is the sole mid-cap stock, with estimated net buying of VND 144 billion.
• Small-cap stocks in the list include VPL, STB, FPT, VNM, VJC, MSN, SHB, SSI, VRE, SSB, VIX, GEX, VCI, and VND.
• Vietnam’s weight in the FTSE Global All Cap index is projected at 0.034%, and 0.329% in the FTSE Emerging Markets All Cap index.

What Happened

According to FTSE Russell’s official timeline, Vietnam will be reclassified from Frontier to Emerging Market in September 2026. ACBS Securities released a projection report estimating the impact of passive fund flows during the index rebalancing. The report identifies 19 stocks that meet FTSE GEIS criteria, with VIC and VHM expected to receive the largest net foreign buying.

ACBS notes that the estimated net buying value for most stocks is within one day’s average trading volume, except for VPL, where the inflow could be nearly twice its average daily turnover. The brokerage assesses the rebalancing as a positive catalyst for foreign capital inflows but not disruptive to market liquidity.

Market Context

As of July 15, 2026, VIC closed at VND 217,000 and VHM at VND 136,000 on HOSE. The broader market has been anticipating the FTSE upgrade, which is seen as a key driver for foreign portfolio investment. The estimated inflows, while modest relative to total market capitalization, could provide support for selected large-cap and liquid mid-cap stocks. The upgrade also aligns with Vietnam’s ongoing efforts to improve market infrastructure and governance standards.

Strategic Significance

The FTSE emerging market upgrade is a structural catalyst for Vietnam’s equity market, potentially broadening the investor base and reducing the cost of capital for listed companies. For VIC and VHM, the expected inflows reflect their status as bellwethers in the real estate and conglomerate sectors. The inclusion of multiple banking, securities, and consumer stocks signals broad-based participation. However, the actual impact will depend on the final constituent list and the pace of passive fund tracking.

What to Watch

• Official FTSE Russell constituent announcement on August 21, 2026.
• Actual foreign net buying volumes during the September 2026 rebalancing period.
• Potential changes in the eligible stock list due to market capitalization or liquidity shifts.
• Follow-up upgrades by other index providers such as MSCI.
• Impact on foreign ownership limits and liquidity for stocks near the foreign room cap.