The VN-Index is sitting at an all-time high. The highest it's been in 25 years of Vietnam's market. And investors' accounts can't seem to grow — half the average portfolio is still in the red. The historic high is real. The number on the board is real too. And that stalled portfolio is real as well. All three are true at once.

Whose high is it

In the first five months of the year the VN-Index rose 4%. But on the board, 68% of listed stocks fell. On some sessions almost 700 tickers were down against just over 500 up. An index isn't a plain average of every stock — it's a weighted average by market cap. One large company rising pulls the whole board up. A few hundred small tickers slipping goes unheard. May's peak belongs to the index. It is not the market's peak.

The first drain: project capital

From the start of last year to mid-July, Vietnam broke ground on more than 1,000 major projects — a combined 5.73 million billion đ. The North–South railway alone is 1.71 million billion đ. Five Hanoi metro lines and nine in Ho Chi Minh City add close to 2.3 million billion đ more. Over 4 million billion đ of it, about 70%, is off-budget capital — the state isn't paying, companies have to raise it themselves. Money the economy calls in stays in concrete, not on the exchange.

The second drain: new shares

Bank credit is nearly at its ceiling — 145% of GDP by mid-July. With lending nearly maxed out, the next door is selling equity. This year's combined share issuance and IPO plans total almost 300,000 billion đ, up 86% on last year. That's over 48 billion new shares, a 17% dilution of what's currently outstanding. The market is growing by new shares, not new money — the denominator grows while the numerator stands still, so per-share value struggles to rise.

The third drain: who buys it

Foreign investors bought 476 trillion đ this year and sold 571 trillion đ — a net outflow of almost 95,000 billion đ, the third year running. Three years combined comes to 310,000 billion đ that has left this market outright. The costliest detail is what they sold: VHM and VIC, the same two stocks that pulled the index to its May high, took over 30,000 billion đ of that selling — most heavily in May itself, the very month of the peak.

17 sessions just to stand still

Domestic money now has to do three things at once: absorb what foreign investors are selling, buy the new share supply, and pay margin interest — while trading turnover has fallen 30% quarter over quarter and margin debt has hit a new record of 435,000 billion đ.

Put in session terms: absorbing the incoming new supply alone eats up about 13 sessions of the market's daily turnover; add the foreign outflow and it's 17 sessions — a month's worth of liquidity, spent just to keep the index where it is.

Where this could be wrong

To be fair: foreign net selling is largely a global story, not a verdict on Vietnam's economy. US and Japanese bond yields are up, the exchange rate is tight, and Vietnam's own growth held up fine in the first half. In September, Vietnam gets upgraded to secondary emerging-market status, with an estimated $1.7 billion in passive inflows expected. This thesis breaks if that inflow lands stronger than forecast, or if pending issuances slip to next year. But $1.7 billion converts to less than half of what foreign investors have already pulled out this year — reason enough to stay cautious rather than call the bottom.

This isn't a call to buy or sell. Markets carry real risk of loss. Open your own account and check: is it up or down since January, and how many tickers are you holding?