FTSE September 2026 Review: Passive Funds to Inject $1.47B into Vietnam Stocks

Overview

FTSE Russell announced its September 2026 index review on August 21, 2026, and BSC Research estimates that passive funds will allocate nearly $1.47 billion (base case) to 27 Vietnamese stocks. Vingroup (VIC) and Vinhomes (VHM) are set to receive the largest inflows, with $241.73 million and $177.15 million respectively. The changes take effect after the close on September 18, 2026, and are expected to drive trading activity in the affected tickers.

Key Facts

• FTSE Russell’s September 2026 review includes 3 Large-cap stocks (VCB, VIC, VHM), 3 Mid-cap stocks (BID, HPG, VPB), and 21 Small-cap stocks, up from 23 stocks in the April 2026 review.
• BSC Research estimates passive fund inflows of approximately $1,465.95 million (base case) and $2,000.34 million (bull case) for 27 Vietnamese stocks.
• VIC is expected to receive the largest allocation at $241.73 million, followed by VHM at $177.15 million and VCB at $69.01 million.
• Among Mid-caps, HPG is projected to receive $102.86 million, VPB $83.86 million, and BID $20.07 million.
• Notable Small-cap allocations include FPT ($78.66 million), MSN ($61.52 million), VNM ($59.07 million), SSI ($59.03 million), STB ($54.94 million), HDB ($47.98 million), and MCH ($40.32 million).
• The index changes become effective after the close on September 18, 2026, with September 7 as the final decision date.

What Happened

On August 21, 2026, FTSE Russell published its September 2026 index review, detailing the constituents for its Large-cap, Mid-cap, Small-cap, and Micro-cap segments. The Vietnam list now includes 27 stocks, up from 23 in the April 2026 review. The changes will be implemented after the market close on September 18, 2026, and will be considered final from September 7.

BSC Research, using data as of August 21, 2026, estimated the expected allocation from 28 passive funds tracking FTSE GEIS Equity Index. In the base case, total inflows are projected at $1,465.95 million, while the bull case sees $2,000.34 million. The estimates account for free-float and weight differences and represent expected allocations, not actual realized flows. BSC excluded duplicate and master-feeder funds and focused on seven major index families, including FTSE Global All Cap and FTSE Emerging Markets.

Market Context

VIC closed at VND 213,000 on August 24, 2026, up 3.90% on volume of 2.35 million shares, while VHM rose 1.53% to VND 73,000. The positive price action reflects anticipation of the FTSE inflows. VIC trades on HOSE, and the broader market has been supported by improving foreign investor sentiment. The expected passive inflows are significant relative to recent daily turnover, potentially providing a short-term boost to liquidity and prices.

Strategic Significance

For long-term investors, the FTSE review underscores Vietnam’s growing weight in global emerging-market indices. The substantial allocations to VIC and VHM highlight their large free-float and liquidity, making them key beneficiaries of passive flows. This trend supports the case for continued foreign investment in Vietnamese equities, particularly in large-cap real estate and banking names. However, investors should note that passive inflows are one-time events and may not reflect fundamental improvements.

What to Watch

• Final index implementation on September 18, 2026, and subsequent trading volumes in VIC, VHM, and other affected stocks.
• Actual foreign net buying data from September 7-18 to gauge the magnitude of flows.
• Q3 2026 earnings reports from VIC and VHM to assess whether fundamentals justify the price levels.
• Any changes in FTSE’s methodology or Vietnam’s market status that could affect future inclusions.
• Regulatory updates on foreign ownership limits or market access that could impact passive fund allocations.