Vietnam's ETF market enters the week of 19 October 2026 with a familiar structure and an unfamiliar flow pattern. In the most recent completed session (16 October), HOSE-listed ETFs turned over just 15.27 billion VND across 24 funds, with 11 gainers, 1 decliner and 12 unchanged, while total industry AUM stood at 22.96 trillion VND. The VN-Index closed at 1,705.91 (+0.45%) and the VN30-Index at 1,855.41 (+0.63%), yet the two flagship funds that dominate this market are ending the year on radically different trajectories. With today's session not yet open, every price below refers to the 16 October closing levels — the baseline for this so sánh ETF VN30 và VN Diamond breakdown.
Key Takeaways
- E1VFVN30 closed at 33,450 VND (+0.60% on the day, -7.32% YTD) versus FUEVFVND at 32,600 VND (+1.24% on the day, -14.88% YTD) — a 756 basis point performance gap caused by basket composition, not fund quality.
- The two funds hold 16,309 billion VND of AUM, or 71% of the entire 22.96 trillion VND market, yet foreign investors sold a net 5.91 billion VND of E1VFVN30 against only 0.01 billion VND of FUEVFVND, inside a market-wide net outflow of 6.71 billion VND.
- Execution cost is diverging as well: E1VFVN30 traded 293,400 units with the close 0.72% above VWAP, while FUEVFVND traded 111,200 units with the close 0.57% above VWAP — a liquidity premium that matters more than headline fees at these volumes.
- So sánh ETF VN30 và VN Diamond is not a question of which fund is 'better' — it is a question of whether you want pure large-cap beta or a foreign-room-constrained satellite sleeve.
1. Two Index Engines, One Shared Mega-Cap
The two products are frequently treated as interchangeable proxies for Vietnamese large caps. They are not. VN30 is a pure large-cap basket; VN Diamond is a free-float-adjusted basket built specifically around companies whose foreign ownership room is exhausted or nearly exhausted. That single design choice explains most of the divergence in returns, flows and rebalancing behaviour — and it is the first variable any so sánh ETF VN30 và VN Diamond exercise has to isolate before comparing headline performance.
Where the baskets actually diverge
The VN30 reference basket is led by FPT (12.4%), TCB (9.2%), ACB (8.6%), HPG (8.4%), VPB (7.5%), MBB (7.1%) and MWG (6.2%). The VN Diamond basket is led by FPT (15.1%), PNJ (12.8%), MWG (12.4%), GMD (10.6%), ACB (9.8%), TCB (9.1%), MBB (7.9%) and REE (6.8%). Five names — FPT, TCB, ACB, MBB and MWG — appear in both, and together they account for 43.5% of the VN30 basket shown versus 54.3% of the Diamond basket. An investor buying both funds for diversification is therefore buying the same mega-cap core twice, with Diamond concentrating that core further while adding PNJ, GMD and REE as satellite exposure.
The structural constraint that drives Diamond's behaviour
FPT at 15.1% sits effectively at the index's single-name ceiling, and the reason is mechanical rather than discretionary: VN Diamond is constructed from stocks where foreign ownership room is scarce. Banks in the basket carry a 30% foreign ownership limit, while consumer and industrial names such as FPT, PNJ, MWG, GMD and REE have long traded at or near their caps. That makes FUEVFVND a synthetic access vehicle for offshore money that cannot buy the underlying directly — which is why basket composition, not management skill, explains most of its return profile. It also means the constituent list changes whenever foreign room opens or closes, creating rebalancing events a static replicator never faces. The VN30 family, by contrast, only changes at the semi-annual review cycle.
2. Tracking Error Is Not One Number
VWAP gap: measuring what you actually pay
Tracking error is normally quoted as annualised NAV-versus-index deviation, but for allocators executing size the more practical metric is the gap between the closing price and the session's volume-weighted average price (VWAP) — the slippage an allocator actually eats on the way in or out. On 16 October that gap was 0.72% for E1VFVN30 and 0.57% for FUEVFVND. Neither number is alarming in isolation, but the direction is consistent: the more liquid fund closes further above its own VWAP, which means buyers chasing the tape pay more for the privilege of size. Live spreads and VWAP gaps for all 24 HOSE-listed ETFs sit on our ETF price board.
Annualised deviation and why 2026 was unusual
The -7.32% YTD print on E1VFVN30 against a VN30-Index that spent most of the year in positive territory is not a replication failure. It is the arithmetic of a basket that caps bank weights at 30% while the index itself is dominated by banks that rallied hard. FUEVFVND's -14.88% YTD is a different story again: Diamond's tilt toward foreign-room-constrained names such as PNJ and GMD meant it captured the consumer and logistics drawdown more fully than the broad large-cap index did. Tracking difference of this magnitude is a composition effect; tracking error — the volatility of that difference — is the part a replicator actually controls. The methodology is set out in our tracking error primer.
3. So sánh ETF VN30 và VN Diamond: The Side-by-Side Numbers
Strip out the narrative and the comparison reduces to a handful of hard numbers from the 16 October close. This table is the reference point for everything that follows.
| Metric (16 Oct 2026) | E1VFVN30 | FUEVFVND |
|---|---|---|
| Index tracked | VN30 | VN Diamond |
| Closing price | 33,450 VND | 32,600 VND |
| Day change | +0.60% | +1.24% |
| Year-to-date change | -7.32% | -14.88% |
| Units traded | 293,400 | 111,200 |
| Close vs VWAP | +0.72% | +0.57% |
| Foreign net flow | -5.91 bn VND | -0.01 bn VND |
| Share of industry AUM | 71% of the 22.96 trillion VND market | |
Two lines in that table do most of the work. The 756bp YTD gap would suggest FUEVFVND is the weaker product; the flow line says the opposite, with foreign sellers almost absent from the Diamond fund while E1VFVN30 shed 5.91 billion VND. Price performance and holder behaviour are telling different stories.
4. Flows: 6.71 Billion VND Out, But Not Everywhere
Both funds sit inside a market that bled a net 6.71 billion VND on 16 October, and the split of that outflow is unusually lopsided. E1VFVN30 absorbed 5.91 billion VND of net selling while FUEVFVND lost just 0.01 billion VND — effectively flat. Roughly 88% of the day's net ETF outflow came from the VN30 vehicle alone.
Where the money actually went
That pattern is not random. Redemptions in E1VFVN30 typically come from domestic institutional mandates rebalancing large-cap beta ahead of the semi-annual review, whereas FUEVFVND's holder base is structurally stickier: many positions exist because the underlying shares cannot be bought directly. A foreign investor who wants PNJ or GMD exposure and has no room left has few alternatives other than the ETF wrapper, so the fund is sold only when the whole allocation is unwound, not on a tactical view. Daily flow data for both funds is tracked on our ETF flow dashboard.
Foreign room and the creation/redemption channel
Creation and redemption activity amplifies the asymmetry. When foreign room in a Diamond constituent opens, the index weight can change and the fund must trade the underlying; when room closes, the ETF becomes the only legal entry point. Either way FUEVFVND's basket turnover is event-driven, which surfaces as tracking difference rather than tracking error. E1VFVN30, replicating a static large-cap index, only faces that machinery twice a year at the VN30 review. Background on how room is allocated is in our foreign ownership room explainer.
5. Execution Cost: Fees Are the Smallest Line Item
Management fees for both funds sit in a narrow band and are well publicised; the cost that actually separates them is the round-trip cost of getting in and out. E1VFVN30's 293,400 units on 16 October was roughly 2.6 times FUEVFVND's 111,200 units, and order-book depth reflects that ratio. For a 5 billion VND ticket the difference is measured in basis points of slippage, not in the annual fee line. The full breakdown sits on our ETF fee and spread comparison.
Bid-ask spread and market depth
The practical rule: below roughly 500 million VND per ticket, fees and spread dominate and the two funds are close to interchangeable. Above 2 billion VND, the VWAP gap and the depth of the top three price levels dominate, and E1VFVN30's liquidity advantage becomes the deciding factor for anyone who needs to exit quickly. Session-level depth data is published on our ETF liquidity tracker.
6. Which Fund Fits Which Portfolio
The cleanest way to close a so sánh ETF VN30 và VN Diamond analysis is to map each product to a specific job. E1VFVN30 is core beta: broad, cheap to trade, liquid, and easily sized. FUEVFVND is a targeted satellite: it delivers exposure that is otherwise legally or practically unavailable to offshore capital, in exchange for concentration, event risk and a wider VWAP gap.
Buying both: the overlap math
FPT, TCB, ACB, MBB and MWG appear in both baskets and represent 43.5% of the VN30 reference basket versus 54.3% of Diamond. Holding both therefore does not diversify — it concentrates the shared mega-cap core while adding PNJ, GMD and REE as satellites. A 50/50 allocation leaves roughly 49% of total exposure in those five stocks, which is a single-factor bet on Vietnamese mega-cap financials and technology whatever the wrapper is called.
The rebalancing calendar
Diamond's constituent list can change whenever foreign room shifts, so holders face event risk with no fixed date. The VN30 family only rebalances at the semi-annual review, which makes it far easier to hedge and model. Anyone running a factor-neutral book should treat the two calendars separately — detail on both is in our ETF rebalancing guide.
7. Three Risks This Comparison Does Not Capture
- Concentration risk: FPT alone is 15.1% of FUEVFVND. A single-name shock is a fund-level event, not a rounding error.
- Foreign-room risk: if a Diamond constituent's room opens materially, the index weight can fall and the fund must rebalance into a market that already knows it is coming.
- Liquidity risk in stress: E1VFVN30's 2.6x volume advantage holds in calm sessions; in a redemption cascade, both funds widen, and the less liquid one widens first.
8. FAQ: So sánh ETF VN30 và VN Diamond
So sánh ETF VN30 và VN Diamond — which is cheaper to hold?
Management fees are close enough that the annual fee is not the deciding cost. On a round trip, E1VFVN30's deeper order book and lower slippage typically make total cost of ownership lower for tickets above 1 billion VND, even before the fee line is compared.
Which fund is more liquid?
E1VFVN30. It traded 293,400 units on 16 October versus FUEVFVND's 111,200, and its close-to-VWAP gap of 0.72% versus 0.57% shows the cost of that liquidity rather than a lack of it.
Can FUEVFVND replace E1VFVN30 as a core holding?
Not without accepting a different risk profile. Five shared mega-caps make up 54.3% of the Diamond basket, so FUEVFVND behaves like a levered version of the same large-cap core with additional consumer and logistics tilts — not like a diversified alternative.
Bottom Line
The short answer to so sánh ETF VN30 và VN Diamond is that these are two different instruments serving two different mandates. E1VFVN30 delivers broad Vietnamese large-cap beta with the deepest book on HOSE; FUEVFVND delivers access to foreign-room-constrained names that offshore money cannot buy directly, and it is paid for with concentration, event-driven rebalancing and a 756bp YTD performance gap that reflects composition rather than skill. An allocator who wants beta should own the VN30 fund. An allocator who needs PNJ, GMD or REE exposure has no substitute for the Diamond fund. Owning both is a bet on five shared mega-caps, not diversification.