Vietnam's ETF complex carried 23.19 trillion VND in total assets across 24 HOSE-listed funds into the 23/10/2026 session, and its two flagship strategies — the broad VN30 beta of E1VFVN30 and the concentrated VN Diamond basket of FUEVFVND — are once again telling two different stories. In the 22/10/2026 session the VN-INDEX rose 1.26% to 1,760.63 points and the VN30-INDEX added 0.66% to 1,892.98 points, yet the ETF tape was split: 8 funds advanced, 7 declined and 9 finished unchanged on total turnover of 28.70 billion VND. Foreign investors bought 20.84 billion VND and sold 5.02 billion VND of ETF units, a net inflow of 15.82 billion VND — and 14.59 billion VND of that landed in a single product, FUEVFVND. Bài viết này là một bản so sánh ETF VN30 và VN Diamond đầy đủ: chiến lược chỉ số, độ tập trung rổ, thanh khoản và rủi ro tracking error, kèm hàm ý phân bổ cho phần còn lại của 2026.
Key Takeaways
- Size and liquidity favour the Diamond fund: FUEVFVND closed at 32,940 VND (+0.46%) with 559,600 units traded and 10,653 billion VND of AUM, versus 33,980 VND (+0.38%), 252,500 units and 5,872 billion VND for E1VFVN30 — roughly 1.8x the assets and 2.2x the volume.
- Year-to-date divergence is wide: E1VFVN30 is down 6.21% YTD against -13.99% for FUEVFVND, a gap of 7.78 percentage points, while the 1-month numbers are far closer (-3.84% vs -2.83%).
- Flow is concentrated: FUEVFVND absorbed 14.59 billion VND of the 15.82 billion VND market-wide foreign net inflow on 22/10 — about 92% of the day's total — versus just 0.77 billion VND for E1VFVN30.
- Tracking error, not index choice, is the real risk: below the top two funds, secondary-market liquidity is thin enough that a single block order can widen the premium/discount and push realised tracking error well above the published fee gap.
1. So sánh ETF VN30 và VN Diamond: October 2026 Market Snapshot
The 22/10/2026 session was a textbook example of how two funds tracking overlapping large caps can produce very different investor experiences. The index-level move looked uniform — the VN-INDEX gained 1.26% and the VN30-INDEX 0.66% — but the ETF secondary market priced risk very differently across products, with the session's trading concentrated almost entirely in the two flagship funds. Any meaningful so sánh ETF VN30 và VN Diamond has to start here, because price, volume and flow already embed the market's view of each strategy.
Closing prices, liquidity and foreign flow on 22/10/2026
| Ticker | Fund | Price (VND) | 1D | 1W | 1M | YTD | Volume (units) | Foreign net (bn VND) | AUM (bn VND) |
|---|---|---|---|---|---|---|---|---|---|
| E1VFVN30 | VFMVN30 ETF | 33,980 | +0.38% | +1.26% | -3.84% | -6.21% | 252,500 | +0.77 | 5,872 |
| FUEVFVND | DCVFMVN Diamond ETF | 32,940 | +0.46% | +2.30% | -2.83% | -13.99% | 559,600 | +14.59 | 10,653 |
| FUESSV30 | SSIAM VN30 ETF | 23,850 | -0.46% | +1.10% | -3.40% | -5.73% | 11,000 | -0.09 | 255 |
| FUEKIV30 | KIM VN30 ETF | 12,940 | +0.31% | n/a | n/a | n/a | 20,000 | +0.25 | 2,289 |
| FUESSVFL | SSIAM VN FINLEAD ETF | 28,470 | +0.28% | +1.54% | -1.11% | -6.49% | 4,300 | +0.01 | 604 |
Two data points stand out. First, the AUM ranking has inverted relative to brand familiarity: the Diamond fund at 10,653 billion VND is now the largest single vehicle in the VN30/large-cap family, nearly twice the size of the original VFMVN30 ETF. Second, liquidity is thinning fast below the top two — FUESSV30 traded 11,000 units and FUESSVFL just 4,300 units, levels at which a single institutional order can move the quoted price by several ticks. Trong một bản so sánh ETF VN30 và VN Diamond, sự bất đối xứng thanh khoản này quan trọng không kém bản thân chỉ số cơ sở.
2. Strategy Design: Broad VN30 Beta vs a Foreign-Ownership Screen
E1VFVN30 replicates the VN30-INDEX: the 30 largest and most liquid HOSE listings, weighted by free-float market cap with a 10% single-stock cap. The result is a portfolio that behaves like large-cap Vietnam beta — heavy in banks, real estate and consumer staples, but diversified enough that no single name dominates the NAV. Its tracking error is structurally low because the underlying basket is liquid and the creation/redemption arbitrage is straightforward.
FUEVFVND replicates the VN Diamond index, which screens for companies that have effectively reached their foreign ownership limit and are excluded from the VN30 basket. That constraint produces a fundamentally different portfolio: a smaller number of names, a heavier tilt to domestic banks and financials, and a return stream driven by foreign-ownership scarcity rather than by pure size. The index's eligibility rules mean constituent turnover is event-driven — a change in room or a reclassification can force rebalancing that a VN30 fund never faces.
The practical implication: the two funds are not substitutes. E1VFVN30 answers "what did large-cap Vietnam do?"; FUEVFVND answers "what did the foreign-room-constrained segment do?" Both answers can be right, and in 2026 they were very different.
3. So sánh ETF VN30 và VN Diamond: Basket Concentration and Overlap
Concentration is where the so sánh ETF VN30 và VN Diamond becomes most decision-relevant. The VN30 basket is capped and rebalanced semi-annually, so its top-10 weight typically sits in the 55–65% range. The Diamond basket, with fewer eligible names, pushes top-10 concentration materially higher and often carries a single-sector weight above 40%.
- Số lượng cổ phiếu: VN30 giữ đúng 30 mã; VN Diamond thường chỉ 15–20 mã đủ điều kiện giới hạn sở hữu nước ngoài.
- Sector tilt: VN Diamond nghiêng mạnh về ngân hàng và dịch vụ tài chính; VN30 cân bằng hơn giữa ngân hàng, bất động sản và tiêu dùng.
- Overlap: gần như bằng 0 về mặt chỉ số, nhưng vẫn tương quan cao về mặt giá vì cùng chịu tác động của thanh khoản thị trường và khối ngoại.
- Rebalancing risk: VN Diamond có rủi ro tái cơ cấu do thay đổi room ngoại — yếu tố không tồn tại ở VN30.
4. Liquidity, Volume and Foreign Flow in 2026
The 22/10 tape makes the liquidity hierarchy unambiguous. FUEVFVND turned over 559,600 units against 252,500 for E1VFVN30, and captured 14.59 billion VND of the 15.82 billion VND market-wide foreign net inflow — roughly 92%. E1VFVN30 took in only 0.77 billion VND, while FUESSV30 and FUESSVFL were marginal, at -0.09 and +0.01 billion VND respectively.
Two conclusions follow. First, in the VN30 segment the original fund is no longer the liquidity leader — VN30 exposure is now spread across three vehicles (E1VFVN30, FUESSV30, FUEKIV30), which fragments depth and widens spreads for anyone trading size. Second, the Diamond fund's flow concentration cuts both ways: it makes entries and exits cheap in normal conditions, but it also means ETF-driven buying can temporarily push the fund to a premium to NAV when foreign demand spikes — a premium that later reverses and shows up as negative tracking error for late buyers.
5. Tracking Error Risk: Where the 7.78-Point YTD Gap Comes From
The headline number in any so sánh ETF VN30 và VN Diamond is the 2026 performance gap: E1VFVN30 -6.21% YTD versus FUEVFVND -13.99%, a 7.78 percentage-point divergence, even though the 1-month figures are close (-3.84% vs -2.83%). That gap is not tracking error in the technical sense — both funds have done a reasonable job of matching their benchmarks. It is index construction difference: the Diamond basket's bank and financials tilt simply performed worse over the year than the broader VN30 mix.
Real tracking error risk sits elsewhere, and investors should separate four sources:
- Management fee drag: the recurring, predictable component that shows up in every NAV comparison.
- Cash drag and dividend timing: larger for funds with concentrated baskets and lumpy dividend receipts.
- Rebalancing slippage: greatest for the Diamond index, where room-driven constituent changes can force trading in less liquid names.
- Premium/discount volatility: the least visible but often the largest for retail investors — buying at a 1% premium and selling at a 0.5% discount costs 1.5 percentage points regardless of how well the fund replicates its index.
In practice, the first two are small and disclosed; the last two are where a so sánh ETF VN30 và VN Diamond on paper diverges from what an investor actually earns.
6. Cost, Liquidity and Tracking Error Scorecard
| Tiêu chí | E1VFVN30 (VN30) | FUEVFVND (VN Diamond) |
|---|---|---|
| Chỉ số cơ sở | VN30-INDEX, 30 mã, cap 10%/mã | VN Diamond, cổ phiếu đạt giới hạn room ngoại |
| Độ tập trung | Trung bình (top-10 ~55–65%) | Cao (top-10 thường >70%) |
| Thanh khoản 22/10 | 252,500 đơn vị | 559,600 đơn vị |
| Quy mô (AUM) | 5,872 tỷ đồng | 10,653 tỷ đồng |
| Rủi ro tracking error chính | Phí quản lý, cash drag | Tái cơ cấu do room ngoại, premium/discount |
| Phù hợp với | Beta large-cap dài hạn, DCA định kỳ | Chủ đề room ngoại, phân bổ vệ tinh |
7. FAQ: So sánh ETF VN30 và VN Diamond
Nên mua ETF VN30 hay VN Diamond?
Không có câu trả lời tuyệt đối. E1VFVN30 phù hợp làm nền tảng danh mục vì beta rộng, tracking error thấp và dễ giao dịch. FUEVFVND phù hợp hơn như một vệ tinh chủ đề, chấp nhận biến động cao hơn để đổi lấy exposure vào nhóm cổ phiếu khan room ngoại.
Tracking error của hai quỹ có khác nhau không?
Có, nhưng khác biệt chủ yếu đến từ nguồn gây lệch: quỹ VN30 lệch do phí và tiền mặt chờ, quỹ Diamond lệch do tái cơ cấu rổ và biến động premium/discount. Chênh lệch -6.21% so với -13.99% YTD là khác biệt chỉ số, không phải lỗi mô phỏng.
Quỹ nào thanh khoản tốt hơn?
Trong phiên 22/10/2026, FUEVFVND gấp khoảng 2,2 lần khối lượng của E1VFVN30 và hút 92% dòng vốn ngoại toàn thị trường ETF. Tuy nhiên thanh khoản của quỹ Diamond phụ thuộc nhiều vào dòng tiền tổ chức hơn là giao dịch nhỏ lẻ.
So sánh ETF VN30 và VN Diamond nên dựa trên tiêu chí nào?
Bốn tiêu chí: (1) mức độ trùng khớp với mục tiêu phân bổ, (2) chi phí và thanh khoản thực tế, (3) nguồn gốc tracking error, (4) tương quan với phần còn lại của danh mục. Giá đóng cửa chỉ là điểm khởi đầu.
Kết luận
The 22/10/2026 session left the two flagship strategies in clear roles. FUEVFVND is the larger, more liquid vehicle but carries concentrated sector risk and event-driven rebalancing; E1VFVN30 is the cleaner beta instrument but now competes with FUESSV30 and FUEKIV30 for the same VN30 liquidity. Kết luận của bản so sánh ETF VN30 và VN Diamond này rất đơn giản: hãy chọn quỹ theo nguồn rủi ro bạn muốn nắm giữ, và luôn kiểm tra premium/discount trước khi đặt lệnh — vì đó là phần tracking error mà nhà đầu tư thực sự trả giá.