FTSE Upgrade: VPB Leads USD 240M ETF Inflow on September 18

Overview

FTSE Russell index-tracking ETFs are expected to net-buy roughly USD 240 million, equivalent to more than VND 6,000 billion, across 27 Vietnamese stocks on September 18, according to SSI Research. The buying is the first tranche of Vietnam’s inclusion in FTSE’s global indices, ahead of the country’s official upgrade to secondary emerging market status on September 21. VPBank (VPB), listed on HOSE, is forecast to receive the largest single inflow at USD 32.8 million.

Key Facts

• ETFs tracking FTSE Russell indices are expected to net-buy about USD 240 million (over VND 6,000 billion) on September 18, 2026.
• VPB is forecast to draw the largest inflow at USD 32.8 million during the week of September 14-18.
• VHM follows at USD 30.85 million, MCH at USD 22.1 million, FPT at USD 21.48 million, MSN at USD 20.9 million and HPG at USD 18.85 million.
• Other expected inflows include VNM at USD 17.27 million, VIX at over USD 16 million, VPL at USD 14.17 million and ACB at USD 13.8 million.
• Stocks facing selling pressure include STB at USD 8.71 million, SHB at USD 3.97 million, KBC at USD 3.24 million and KDH at USD 3.19 million.
• FTSE Russell will phase in 10% of Vietnam’s investable weight in September 2026, adding 20% in March 2027, then 35% in each of June and September 2027.
• Under SSI Research’s base case, Vanguard funds alone could deploy about USD 2.4 billion over the full roadmap, rising to USD 4.45 billion in a positive scenario.

What Happened

SSI Research published estimates showing that global index-tracking funds replicating FTSE Russell benchmarks will begin buying Vietnamese equities on September 18, with the first disbursement sized at approximately USD 240 million. The report identifies VPB as the top recipient at USD 32.8 million, followed by VHM at USD 30.85 million and MCH at USD 22.1 million. FPT, MSN and HPG round out the largest inflow group, each above USD 18 million. On the sell side, STB, SHB, KBC and KDH are expected to see net outflows as the funds rebalance toward the new index composition.

The buying is the first of four tranches under FTSE Russell’s inclusion schedule, which runs from September 2026 to September 2027. Vietnam formally attains secondary emerging market status on September 21, 2026. SSI Research notes that ETF capital will be deployed in stages rather than all at once, a structure designed to let the market absorb inflows and limit volatility when funds adjust portfolios simultaneously. After each tranche, FTSE Russell will assess whether index-tracking funds have completed their rebalancing before moving to the next phase.

Market Context

VPB closed at VND 27,200 on September 14, 2026, on HOSE, with the banking sector among the most heavily weighted in the incoming FTSE allocation. The broader upgrade narrative has supported large-cap Vietnamese equities through 2026, with FPT at VND 72,400, VHM at VND 71,700 and MCH at VND 141,900 as of the same date. The September 18 buying event is the first concrete capital flow tied to the upgrade, and its concentration in banking, real estate, technology and consumer staples reflects the sector composition of FTSE’s Vietnam index.

Strategic Significance

For long-term investors, the September 18 event is less about a single day’s flow than about the start of a multi-year re-rating mechanism. The four-tranche structure means passive demand for VPB and other large caps will recur at each phase, with the March 2027 step adding 20% and the June and September 2027 steps adding 35% each. Vanguard’s base-case USD 2.4 billion deployment, and the USD 4.45 billion positive scenario, imply that the passive bid is not a one-off. For VPB specifically, the USD 32.8 million first-tranche estimate is small relative to daily liquidity, but the signal matters: Vietnam’s upgrade gives global funds a structural reason to hold the stock, which can compress the valuation gap with regional emerging-market banks over time.

What to Watch

• Actual net foreign flow data for the September 18 session, versus the USD 240 million SSI Research estimate.
• FTSE Russell’s post-tranche assessment of whether index-tracking funds completed their rebalancing.
• The March 2027 tranche, when the investable weight rises by 20 percentage points to 30%.
• Vanguard’s final index weight decisions, which determine whether the base case of USD 2.4 billion or the positive case of USD 4.45 billion prevails.
• Foreign-ownership room and any cap adjustments at VPB and other heavily weighted names ahead of subsequent tranches.