Best ETFs for Long-Term Investing: 6 Funds
The best ETFs for long-term investing are usually broad, transparent, liquid, and inexpensive. But there is no single best fund for every investor. The correct choice depends on the job the ETF must perform inside the portfolio: global equity, U.S. equity, international diversification, bonds, or a deliberate growth tilt.
For many investors, one or two broad index ETFs can do more useful work than a collection of overlapping themes. Begin with asset allocation, then compare funds inside each category using the Be The Investor ETF research hub.
The short list
The following U.S.-listed ETFs are research candidates as of August 18, 2026. Expense ratios were checked against issuer pages available on that date and can change.
Ticker
Fund
Primary role
Expense ratio
Important limitation
VT
Vanguard Total World Stock ETF
One-fund global equity exposure
0.06%
All-equity volatility; U.S. and non-U.S. weights change with markets
VTI
Vanguard Total Stock Market ETF
Broad U.S. equity core
0.03%
No direct non-U.S. diversification
VXUS
Vanguard Total International Stock ETF
Broad non-U.S. equity complement
0.05%
Currency, country, and emerging-market risks
IVV
iShares Core S&P 500 ETF
Large-cap U.S. equity core
0.03%
Excludes most U.S. small and mid caps; market-cap concentration
BND
Vanguard Total Bond Market ETF
Broad U.S. investment-grade bond exposure
0.03%
Interest-rate, credit, and inflation risk; not a cash substitute
QQQM
Invesco NASDAQ 100 ETF
Optional large-cap growth tilt
0.15%
Concentrated and valuation-sensitive; heavy overlap with broad U.S. funds
This is a menu, not a six-fund model portfolio. VT already contains U.S. and international stocks. VTI contains most of IVV's holdings. QQQM overlaps heavily with the largest growth companies inside VTI and IVV. Combining funds without measuring overlap can increase complexity without increasing diversification.
Use the ETF Scanner to compare holdings, fees, performance, yield, risk, issuer, and sector exposure before choosing between similar products.
1. VT: a one-fund global equity portfolio
Vanguard Total World Stock ETF seeks broad exposure to developed and emerging stock markets, including the United States. Its expense ratio was 0.06% as of February 27, 2026, according to Vanguard.
Why research it:
A single trade provides broad global equity exposure.
Market capitalization determines the regional weights instead of a manual allocation.
It reduces the need to rebalance U.S. and international stock funds separately.
Main risks:
It is still an all-stock portfolio and can experience severe drawdowns.
Investors cannot independently set the U.S. versus international allocation without adding other funds.
Global diversification does not prevent losses during worldwide market declines.
Best fit to research: an investor seeking simple global equity exposure with a long horizon and the ability to tolerate stock-market volatility.
2. VTI: broad exposure to the U.S. stock market
Vanguard Total Stock Market ETF provides exposure across U.S. large-, mid-, and small-cap companies. Vanguard reported a 0.03% expense ratio as of April 28, 2026.
Why research it:
Broader U.S. coverage than an S&P 500-only fund.
Low cost and a simple role as a U.S. equity core.
Exposure automatically changes as companies grow or shrink in market value.
Main risks:
It remains concentrated in one country and can become concentrated in the largest companies.
Small-cap exposure is present but may be modest because the index is market-cap weighted.
It should not be mistaken for a complete global portfolio.
VTI is often paired with an international fund such as VXUS. The allocation between them should reflect the investor's policy, not recent relative performance.
3. VXUS: broad international stock exposure
Vanguard Total International Stock ETF covers developed and emerging markets outside the United States. Vanguard listed a 0.05% expense ratio as of February 27, 2026.
Why research it:
It complements a U.S.-only equity fund.
It spreads exposure across countries, currencies, sectors, and market structures.
It provides a transparent way to choose an explicit international allocation.
Main risks:
Currency movements can raise or reduce returns for a U.S.-dollar investor.
Accounting, political, governance, and liquidity conditions differ across markets.
Country and sector weights may differ substantially from the U.S. market.
International diversification is not a prediction that international stocks will outperform next year. It is a way to reduce dependence on one national market over a long horizon.
4. IVV: low-cost S&P 500 exposure
iShares Core S&P 500 ETF seeks to track the S&P 500 Index and focuses on large U.S. companies. BlackRock reported a 0.03% expense ratio as of August 17, 2026.
Why research it:
It offers a liquid, low-cost core for U.S. large-cap exposure.
The underlying index is widely followed and transparent.
The fund's role is easy to understand and benchmark.
Main risks:
It excludes most small and mid-sized U.S. companies.
Market-cap weighting can create significant concentration in the largest constituents.
It overlaps heavily with VTI and many growth, technology, and dividend ETFs.
VTI and IVV are alternatives for many core portfolios, not automatically complementary holdings. Compare the exposures in the ETF comparison tools before owning both.
5. BND: a broad U.S. bond allocation
Vanguard Total Bond Market ETF provides broad exposure to U.S. investment-grade bonds. Vanguard reported a 0.03% expense ratio as of April 28, 2026 and states that the fund holds more than 10,000 domestic investment-grade bonds.
Why research it:
It can diversify an equity-heavy portfolio.
A single fund provides broad exposure across Treasury, agency, mortgage-backed, and corporate bonds represented by its benchmark.
It is easier to maintain than a ladder of many individual bonds.
Main risks:
Bond prices can decline when interest rates rise.
Credit spreads and defaults can hurt parts of the portfolio.
Inflation can reduce the real value of fixed payments.
The fund has duration risk and should not be treated as insured cash.
The appropriate bond weight depends on the investor's horizon, withdrawal needs, income stability, and tolerance for equity drawdowns.
6. QQQM: an optional growth tilt, not a complete portfolio
Invesco NASDAQ 100 ETF provides exposure to the largest non-financial companies listed on Nasdaq that are included in the Nasdaq-100 Index. Invesco reported a 0.15% total expense ratio and 104 holdings as of August 2026.
Why research it:
It provides a deliberate tilt toward large companies associated with innovation and growth.
Its expense ratio is lower than some other products tracking the same index.
It can serve as a satellite position when the investor understands the concentration.
Main risks:
Sector and company concentration can increase drawdowns.
Growth stocks can be highly sensitive to interest rates and valuation compression.
It overlaps substantially with broad U.S. index funds.
The Nasdaq listing rule is not an economic diversification rule.
QQQM should not be described as a low-risk substitute for a broad global or total-market fund.
How to compare long-term ETFs
Benchmark and mandate
Read the prospectus and identify exactly what the fund tracks. “U.S. stock market,” “large-cap growth,” and “technology” are different exposures even when many top holdings overlap.
Expense ratio and total trading cost
The expense ratio compounds every year, but it is not the only cost. Also review bid-ask spread, brokerage charges, taxes, tracking difference, and any premium or discount to net asset value. FINRA's Fund Analyzer can compare how fund expenses affect value over time.
Breadth and concentration
Count holdings, but also inspect weights. A fund with hundreds of securities can still depend heavily on a small number of companies, sectors, or countries.
Liquidity
Review trading volume, bid-ask spread, fund assets, and the liquidity of underlying holdings. Use limit orders when appropriate and avoid assuming that every ETF trades equally well in volatile markets.
Tax and domicile
U.S.-listed ETFs can have different tax consequences for non-U.S. investors, including dividend withholding and possible estate-tax exposure. Fund domicile and account type matter. Obtain jurisdiction-specific professional advice.
Tracking and securities lending
Compare the fund's return with its benchmark after fees. Read how the fund handles sampling, rebalancing, derivatives, and securities-lending revenue.
Three simple portfolio structures to study
These are educational structures, not personalized allocations.
One global equity fund
VT can provide a one-fund global stock allocation. It is simple, but it remains fully exposed to equity risk.
Separate U.S. and international equity funds
VTI plus VXUS lets the investor choose and rebalance the geographic allocation. The tradeoff is an additional decision and more maintenance.
Stocks plus bonds
A broad stock fund or stock-fund combination can be paired with BND or another bond allocation. The stock-bond mix should follow the investor's risk capacity and time horizon, not a generic age rule.
Use the portfolio tracker and risk management tools to monitor allocation, concentration, volatility, and drawdowns after implementation.
Long-term ETF mistakes to avoid
Choosing the fund with the highest recent return.
Owning several ETFs that hold the same largest companies.
Treating thematic, leveraged, or inverse ETFs as automatic buy-and-hold products.
Ignoring expense ratios because the percentages look small.
Using bond ETFs as if their value cannot fall.
Trading frequently in response to headlines.
Ignoring tax, domicile, spread, and currency effects.
Buying before defining the fund's job in the portfolio.
Bottom line
For long-term investing, the strongest ETF candidates are usually the simplest funds that deliver the required exposure at low cost. VT can serve as a global equity solution. VTI and VXUS can form a flexible U.S. and international combination. IVV provides large-cap U.S. exposure. BND adds broad U.S. investment-grade bonds. QQQM is better treated as an optional growth tilt than as a complete portfolio.
The best choice is the one that fits a written allocation, avoids unintended overlap, remains affordable after all costs, and can be held through a full market cycle.
Frequently asked questions
What is the best single ETF for long-term investing?
There is no universal answer. A global stock fund such as VT is a candidate for investors who want one-fund equity exposure. It is not suitable for money that cannot tolerate stock-market losses or may be needed soon.
Is VTI better than an S&P 500 ETF?
VTI is broader because it includes U.S. mid- and small-cap companies in addition to large caps. An S&P 500 ETF such as IVV focuses on large U.S. companies. Neither is automatically better; the choice depends on the intended exposure.
How many ETFs are needed for diversification?
One broad ETF can hold thousands of securities. The number of funds is less important than the combined exposure. Additional ETFs can reduce or increase diversification depending on their overlap.
Are low expense ratios always better?
Lower cost is beneficial when two funds provide comparable exposure and execution. A low fee cannot compensate for the wrong benchmark, excessive concentration, poor liquidity, tax mismatch, or an unsuitable risk level.
Should long-term investors use QQQM?
QQQM may be studied as a satellite growth allocation. It is more concentrated than a total-market or global fund and overlaps with many broad U.S. ETFs. Position size should reflect that concentration.
Sources and further reading
Vanguard: VT fund profile
Vanguard: VTI fund profile
Vanguard: VXUS fund profile
Vanguard: BND fund profile
iShares: IVV fund profile
Invesco: QQQM fund profile
FINRA: Fund Analyzer overview
Investor.gov: Asset Allocation and Diversification
Editorial disclaimer: This guide is educational and does not recommend any security or allocation for a particular reader. Fund data, fees, holdings, and tax treatment can change. Review the latest prospectus and obtain professional advice where appropriate.
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