Vietnam's stock market status upgrade could mark the starting point of a medium- to long-term process to improve the quality of the country's capital market, according to Mirae Asset Securities.
The country's stock market is just two weeks away from officially being upgraded from frontier to secondary emerging market status by FTSE Russell.
The market reacted positively in August, with the VN-Index rising more than 5% to close at 1,832 points. However, gains remained highly differentiated and were not accompanied by a sustained reversal in foreign capital flows.
Foreign investors continued to be net sellers in August, bringing their net selling on the Ho Chi Minh Stock Exchange (HoSE) in the first eight months of the year to more than VND90 trillion ($3.47 billion).
Vietnam will also not receive its full weighting in FTSE's indexes immediately in September. The process will take place in four stages from September 2026 to September 2027, with cumulative weightings of about 10%, 30%, 65% and 100%, respectively.
As a result, the impact of the upgrade on capital flows is likely to unfold gradually rather than provide a single one-off boost.
Speaking on the Financial Street talk show, Dinh Minh Tri, director of analysis for retail clients at Mirae Asset Securities (MAS), said some expectations surrounding the upgrade had already been priced into the market, but the story would not end on September 21.
After that date, the factors driving the market's direction would gradually shift from upgrade expectations to the actual size of capital flows, corporate earnings growth, valuations and the quality of market reforms, he said.

International experience shows that market reactions before and after an upgrade are not necessarily the same.
Active funds tend to move ahead of such events to anticipate expectations, while passive funds typically rebalance their portfolios around the time the index officially takes effect.
Kuwait is a typical example. In the period before it was officially included in the emerging-market category, Kuwait's market rose sharply and attracted significant international capital inflows.
Saudi Arabia, meanwhile, offers a longer-term example. Its inclusion in FTSE and MSCI indexes was implemented in several stages, allowing foreign capital flows to build gradually alongside market opening and reforms. Foreign investors' holdings in the Saudi market rose sharply in the year of its upgrade.
For Vietnam, a “buy the expectation, sell the news” pattern around September 21 is entirely possible, particularly for stocks that have risen sharply on expectations of being included in international indexes.
That does not mean, however, that the impact of the upgrade will end immediately after the effective date.
As FTSE is implementing the upgrade in four stages over a year, Tri said the impact on capital flows would also be cumulative.
Instead of focusing solely on whether the VN-Index rises or falls in the sessions around September 21, it will be more important to watch whether foreign capital flows gradually improve, whether liquidity expands on a sustainable basis, and whether institutional investors increase their participation in the following months.
MSCI is the next milestone
Tri noted that Vietnam had reached an important milestone with FTSE, but in its June 2026 Market Classification Review, MSCI had not yet included Vietnam among markets under consideration for reclassification.
The MSCI goal should therefore be viewed as the next stage of reform rather than something that can be completed in the near term, he said.
On the positive side, MSCI has recognized several steps taken by Vietnam, including the development of a global broker model, a roadmap to establish a central counterparty clearing house (CCP), expanded disclosure in English, and several changes related to foreign investors' market access.
On settlement, the current non-prefunding mechanism has significantly improved market access.
However, several bottlenecks remain. Foreign ownership limits continue to affect investment capacity in some large companies, while the foreign exchange market does not yet have a fully developed offshore mechanism. Some corporate information and market regulations are also not yet available comprehensively in English.
Over the longer term, however, Vietnam still needs a fully fledged CCP system to bring post-trade arrangements closer to international standards. This will be one of the key tasks for 2026-2027.
Tri said Vietnam should focus on several priorities, including completing the CCP and settlement mechanism, continuing to address foreign ownership limits and increase free float, expanding English-language disclosures, and improving access to foreign exchange trading and risk-management instruments for foreign investors.
More importantly, reforms need not only to be introduced but also to operate effectively in practice. This would not only serve the goal of an MSCI upgrade but also improve the transparency, liquidity and long-term attractiveness of Vietnam's capital market.
Foreign capital flows unlikely to reverse immediately
According to the Mirae Asset expert, developments in 2026 have shown clearly that an upgrade is necessary but not sufficient to bring foreign capital flows back.
Foreign investors remained net sellers of more than VND90 trillion ($3.47 billion) on the HoSE in the first eight months of the year. Although selling pressure eased significantly in August, foreign capital flows have yet to establish a sustained net-buying trend.
Funds tracking FTSE standards will have to adjust their portfolios when Vietnam is added to the index. However, active funds in international markets account for a much larger pool of capital and are not required to buy Vietnam. They will continue to assess the country based on valuations, earnings growth, exchange rates, interest rates, and economic prospects.
The impact of FTSE will also not be fully felt in September, as the initial stage involves only about 10% of the eventual weighting, with the remainder phased in through September 2027.
Capital directly related to the upgrade is therefore likely to be deployed gradually.
Another important issue is investability. International funds may be positive about Vietnam's prospects but could still find it difficult to deploy large amounts of capital if leading stocks are close to their foreign ownership limits, free float is low, liquidity is limited or hedging instruments are lacking.
Vietnam also needs to expand the supply of quality stocks through IPOs, equitisation, state divestments, and listings of large companies. An attractive emerging market needs not only more capital flows but also enough quality companies to absorb that capital.
Ultimately, macroeconomic fundamentals and corporate earnings growth remain the most important factors. FTSE will help Vietnam widen access to international capital, but whether capital flows into the market, remain there and increase their allocations will depend on the country's ability to sustain high growth, control inflation and exchange rates, and improve the quality of listed companies.
Tri remains positive on Vietnam's medium- and long-term outlook but is more cautious in the short term.
The VN-Index rose more than 5% in August to close at 1,832 points, suggesting that some expectations for the upgrade, economic growth, and corporate earnings have already been reflected in share prices.
Sharp volatility in the first week of September also shows that market differentiation is increasing, with declining stocks outnumbering gainers.
This suggests that after a relatively rapid rise, the market could see bouts of volatility and consolidation as investors balance upgrade expectations against profit-taking needs.
For domestic capital flows, retail investors will continue to play an important supporting role.
Mirae Asset Securities' analysts expect capital to remain concentrated in sectors with clear earnings-growth prospects, including banking and financial services; public investment, construction and infrastructure; technology; energy; and industrial property.
However, differences in performance between companies within the same sector are likely to become increasingly pronounced.
In the short term, the market is unlikely to move in a straight line and could alternate between periods of gains, corrections and consolidation.
After the September 21 milestone, investors' attention will gradually shift towards third-quarter earnings, the outlook for 2027 profits, and the actual size of capital flows from international funds.
Over the medium term, Tri said the three most important factors would be actual capital flows following the upgrade, corporate earnings growth, and progress in market reforms towards MSCI standards.
If all three continue to develop favourably, the FTSE upgrade could become the starting point for a new cycle of quality improvements in Vietnam's capital market, rather than merely a short-term capital-flow story.