12 Low-Cost ETFs in 2026 – What to Check Before You Invest

ALT for cover image: Best low-cost ETFs in 2026 compared by expense ratio and investment type

Low-cost ETFs can give investors exposure to hundreds or even thousands of securities while charging only a few dollars per year for every $10,000 invested. In 2026, several major broad-market ETFs carry expense ratios of just 0.03%, making fund costs remarkably small compared with many traditional investment products. But choosing a low-cost ETF purely because it has the smallest number in the fee column can still lead to the wrong portfolio.

The underlying investments matter far more than a difference of one or two hundredths of a percentage point. An S&P 500 ETF, a total U.S. stock market ETF, an international stock ETF and a bond ETF can all be inexpensive while serving completely different purposes. Low cost tells you how much a fund charges – it does not tell you what you own, how much risk you are taking or whether the ETF fits your financial goal.

That distinction is especially important for beginners. Instead of searching for one “best ETF,” it is more useful to understand what each low-cost ETF is designed to do, what index it follows and where it could fit in a diversified portfolio.

What Are Low-Cost ETFs?

Low-cost ETFs are exchange-traded funds with relatively small ongoing operating expenses compared with many other investment funds. The cost is usually expressed through an expense ratio, which represents annual fund operating expenses as a percentage of assets.

A 0.03% expense ratio means approximately $3 in annual fund expenses for every $10,000 invested, assuming the investment value remained at $10,000 for simplicity. At $100,000, the same percentage corresponds to roughly $30. Investors do not normally receive a separate annual bill for this amount because fund expenses are reflected in the fund’s net asset value.

Many low-cost ETFs are index funds. Instead of paying a management team to continually select individual securities in an attempt to outperform a benchmark, they seek to track an index according to predefined rules. This can reduce management costs substantially, although passive investing still involves market risk and tracking differences.

12 Low-Cost ETFs to Know in 2026

There is no meaningful way to rank low-cost ETFs solely from “best” to “worst” because the funds below provide different types of exposure. A U.S. equity ETF cannot replace an international stock ETF simply because both have low expense ratios, and neither serves the same function as a bond ETF.

The comparison is more useful when each fund is treated as a possible building block rather than a standalone recommendation.

ETF	Ticker	Expense ratio*	Main exposure	Potential portfolio role
SPDR Portfolio S&P 500 ETF	SPYM	0.02%	Large U.S. companies	U.S. large-cap core
Vanguard S&P 500 ETF	VOO	0.03%	S&P 500	U.S. large-cap core
iShares Core S&P 500 ETF	IVV	0.03%	S&P 500	U.S. large-cap core
Vanguard Total Stock Market ETF	VTI	0.03%	Broad U.S. stock market	Broad U.S. equity core
Schwab U.S. Broad Market ETF	SCHB	0.03%	Broad U.S. stock market	Broad U.S. equity core
iShares Core S&P Total U.S. Stock Market ETF	ITOT	0.03%	Broad U.S. stock market	Broad U.S. equity core
Schwab U.S. Large-Cap ETF	SCHX	0.03%	U.S. large caps	Large-cap exposure
Vanguard Total International Stock ETF	VXUS	0.05%	Non-U.S. developed and emerging markets	International diversification
Vanguard Total World Stock ETF	VT	0.06%	U.S. and international stocks	Global equity exposure
iShares Core S&P Mid-Cap ETF	IJH	0.05%	U.S. mid-cap stocks	Mid-cap allocation
iShares Core S&P Small-Cap ETF	IJR	0.06%	U.S. small-cap stocks	Small-cap allocation
Vanguard Total Bond Market ETF	BND	0.03%	U.S. investment-grade bonds	Broad bond exposure

*Expense ratios can change. Always verify the current fund prospectus and issuer information before investing.

The table also illustrates why “low-cost ETFs” is a category rather than a strategy. Two funds can charge nearly identical fees while producing substantially different returns and risks because they own different assets.

1. SPDR Portfolio S&P 500 ETF – SPYM

SPYM is designed to track the S&P 500 and provides exposure to large U.S. companies. Its 0.02% expense ratio places it among the lowest-cost broad U.S. equity ETFs available in 2026. At that rate, $10,000 invested corresponds to roughly $2 in annual fund operating expenses under a simplified constant-balance example.

Its underlying exposure is more important than that exceptionally low fee. An S&P 500 fund holds large U.S. companies and can serve as the U.S. large-cap component of a portfolio, but it does not represent every publicly traded U.S. company. Smaller companies and international stocks require different exposure.

SPYM can therefore be compared directly with other S&P 500 trackers rather than with every ETF on the market. Once expense ratios become extremely low, differences in index tracking, trading characteristics, brokerage availability and portfolio fit deserve more attention than a one-basis-point fee difference.

2. Vanguard S&P 500 ETF – VOO

VOO is another low-cost ETF providing S&P 500 exposure. Its expense ratio is 0.03%, equivalent to approximately $3 annually for each $10,000 invested in a simplified example. The fund gives investors access to many of America’s largest publicly traded companies through a single security.

Because the index is weighted by market capitalization, the largest companies have a greater effect on its performance than smaller constituents. Owning hundreds of stocks therefore does not mean every company contributes equally to portfolio risk or returns.

VOO is frequently used as a core U.S. equity holding, but “core” does not mean risk-free. It remains a stock fund and can fall substantially during equity market downturns.

3. iShares Core S&P 500 ETF – IVV

IVV also seeks to track the S&P 500 and currently carries a 0.03% expense ratio. That makes its basic investment proposition very similar to other low-cost S&P 500 ETFs: broad exposure to major U.S. companies for a small ongoing fund cost.

For long-term investors choosing between extremely similar index trackers, tiny differences in expense ratios may have less practical importance than expected. A difference between 0.02% and 0.03%, for example, equals only $1 annually on a $10,000 balance under a simple constant-value calculation.

That does not mean fees should be ignored. It means investors should avoid allowing a one-basis-point difference to overshadow the much larger question of whether S&P 500 exposure is appropriate for the portfolio in the first place.

4. Vanguard Total Stock Market ETF – VTI

VTI goes beyond the S&P 500 by seeking exposure to the broader U.S. equity market. As of 2026, its expense ratio is 0.03%, while the portfolio contains thousands of stocks spanning large-, mid- and smaller-cap companies.

That broader reach can make VTI attractive to investors who want one fund for U.S. equity exposure rather than separate large-, mid- and small-cap ETFs. Large companies still represent a substantial portion of the portfolio because of market-cap weighting, so broader diversification does not mean equal exposure across company sizes.

Someone just beginning to understand equities may find it useful to first learn how to invest in stocks, including how brokerage accounts, risk tolerance and investment time horizons work, before deciding whether an ETF belongs in a portfolio.

5. Schwab U.S. Broad Market ETF – SCHB

SCHB is another broad U.S. stock market option, with an expense ratio of 0.03% in 2026. It tracks the Dow Jones U.S. Broad Stock Market Index and held roughly 2,380 securities according to Schwab data in September 2026.

That creates exposure extending beyond America’s largest companies. However, investors considering both SCHB and another total-market ETF should examine overlap carefully because buying two broad U.S. market funds does not necessarily create meaningful additional diversification.

If two ETFs own many of the same companies in similar proportions, holding both can make a portfolio look more diversified without substantially changing its underlying exposure. Count exposures, not ticker symbols.

6. iShares Core S&P Total U.S. Stock Market ETF – ITOT

ITOT provides another route to broad U.S. equity exposure and carries a low expense ratio. Its purpose is similar to VTI and SCHB even though the funds follow different underlying indexes.

For beginners, this is an important lesson about ETF comparison. Funds do not need to track the exact same benchmark to produce broadly similar portfolio exposure, and choosing several near-duplicates can unnecessarily complicate a simple long-term strategy.

Compare the index methodology, holdings, costs, liquidity and brokerage considerations before deciding between similar funds. The objective is not to collect every inexpensive ETF but to choose exposures that have a clear role.

7. Schwab U.S. Large-Cap ETF – SCHX

SCHX provides exposure to U.S. large-cap stocks through the Dow Jones U.S. Large-Cap Total Stock Market Index. Schwab reported a 0.03% expense ratio and about 750 holdings in September 2026.

That makes it broader by number of holdings than an S&P 500 tracker, although both approaches remain heavily focused on large U.S. companies. Investors should therefore expect significant overlap between a large-cap ETF such as SCHX and many other U.S. equity funds.

This is another case where adding an ETF does not automatically add meaningful diversification. If the portfolio already contains a broad total-market fund, much of SCHX’s exposure may already be present.

8. Vanguard Total International Stock ETF – VXUS

VXUS addresses a major limitation of U.S.-only ETFs by providing exposure to stocks outside the United States. Vanguard reported an expense ratio of 0.05% in 2026, with the fund holding more than 8,700 securities across developed and emerging markets.

International diversification can reduce dependence on the performance of one country’s equity market. It also introduces different risks, including currency movements, geopolitical events, regional economic conditions and regulatory differences.

VXUS should therefore not be compared with VTI by asking which fund is “better.” They cover different markets and can potentially serve complementary roles within a globally diversified portfolio.

9. Vanguard Total World Stock ETF – VT

VT takes the one-fund concept further by combining U.S. and non-U.S. equities in a single global portfolio. Its expense ratio remains low, while its broad mandate provides exposure to thousands of companies around the world.

This can simplify portfolio construction for someone seeking global equity exposure without manually determining separate U.S. and international allocations. The trade-off is reduced control over the exact geographic split because the fund’s market-cap-weighted structure determines the allocation.

A globally diversified ETF is still an equity investment. Geographic diversification can spread risk among markets, but it cannot eliminate the possibility of significant losses during a global stock-market decline.

10. iShares Core S&P Mid-Cap ETF – IJH

IJH focuses on medium-sized U.S. companies and carries an expense ratio of 0.05%. Mid-cap stocks occupy the space between the largest corporations and smaller companies, creating a different risk and return profile from an S&P 500 portfolio.

A dedicated mid-cap ETF can be useful when an investor intentionally wants more exposure to that part of the market. But someone already holding a total U.S. stock market ETF probably owns mid-cap stocks within that broader fund.

Before adding IJH, check whether it creates a deliberate allocation or merely duplicates an existing one. Intentional overweighting and accidental overlap are not the same strategy.

11. iShares Core S&P Small-Cap ETF – IJR

IJR provides exposure to smaller U.S. companies and has an expense ratio of 0.06%. Small-cap stocks can behave differently from large companies and may experience greater volatility, which makes risk tolerance particularly important.

Adding a dedicated small-cap fund can increase exposure to this market segment beyond its natural weighting in a broad-market ETF. That may be intentional for some portfolios, but it should not happen simply because the ETF is inexpensive.

Low fees cannot make a volatile asset conservative. The risk comes primarily from what the ETF owns, not from what it charges.

12. Vanguard Total Bond Market ETF – BND

BND demonstrates that low-cost ETFs are not limited to stocks. The fund provides broad exposure to the U.S. investment-grade bond market and carries an expense ratio of 0.03%.

Bonds can serve a different portfolio function from equities, potentially providing income and changing overall volatility. They also have their own risks, including interest-rate risk, credit risk and inflation risk.

A bond ETF should therefore not be judged against VTI or VOO based on which produced the higher recent return. They represent different asset classes and may be included for different reasons.

How Much Do Low-Cost ETF Fees Actually Cost?

Expense ratios look tiny in percentage form, so converting them into dollars makes comparison easier. The calculation is straightforward: multiply the investment balance by the expense ratio expressed as a decimal.

For illustration, the table below assumes a constant balance throughout one year. Real investment values fluctuate, so actual fund expenses reflected in returns will not match these simplified examples exactly.

Expense ratio	$10,000 invested	$50,000 invested	$100,000 invested
0.02%	$2	$10	$20
0.03%	$3	$15	$30
0.05%	$5	$25	$50
0.10%	$10	$50	$100
0.25%	$25	$125	$250
0.50%	$50	$250	$500
1.00%	$100	$500	$1,000

The difference becomes more meaningful as both the portfolio and time horizon grow. Still, once several comparable ETFs already charge only 0.02% to 0.06%, investment exposure can be much more important than finding the absolute cheapest ticker.

Why Expense Ratios Matter More Over Decades

Fund expenses reduce the assets remaining invested, which means the cost can compound indirectly over long periods. A dollar lost to fees today is also a dollar that cannot participate in future investment growth.

Consider two hypothetical funds producing an identical 7% annual return before expenses. One costs 0.03% annually and the other 0.50%. Starting with $100,000 and simplifying the calculation by subtracting the expense ratio from the annual return, the lower-cost investment would grow to roughly $747,000 after 30 years, while the higher-cost alternative would reach roughly $661,000.

That difference of approximately $86,000 illustrates why apparently modest annual costs deserve attention over long horizons. Real-world returns are not constant, and actual fund expenses and tracking behavior are more complex, but the basic compounding principle remains important.

The Cheapest ETF Is Not Automatically the Best ETF

Once costs become very low, shaving another 0.01 percentage point from an expense ratio may have almost no practical effect on a modest portfolio. On $10,000, the difference between 0.02% and 0.03% is approximately $1 per year.

Meanwhile, choosing the wrong exposure can change portfolio behavior dramatically. A technology-sector ETF, small-cap ETF, emerging-market ETF and total-market ETF might all have relatively low fees, but they carry very different concentration and volatility risks.

Investors should therefore compare ETFs in the correct order: first determine the exposure needed, then compare funds providing that exposure, and only then use cost as one of the deciding factors.

What to Check Before Buying a Low-Cost ETF

Expense ratio is only the first line worth reading on an ETF’s information page. A useful comparison examines the investment itself and the mechanics of owning it.

Before choosing between low-cost ETFs, check these factors:

1. Underlying index. Understand exactly which benchmark the ETF follows.
2. Holdings. Check what companies, bonds or other securities are actually inside the fund.
3. Diversification. Look beyond the number of holdings and examine concentration by company, sector and country.
4. Expense ratio. Compare ongoing fund expenses with genuinely similar alternatives.
5. Bid-ask spread. A wider spread can increase the effective cost of buying and selling.
6. Trading volume and liquidity. Consider how easily shares normally trade.
7. Tracking difference. Examine how closely the ETF has followed its benchmark after costs.
8. Fund size. Very small funds can face different liquidity and closure considerations.
9. Tax treatment. Rules vary by account type, investment and jurisdiction.
10. Portfolio overlap. Check whether the ETF adds new exposure or duplicates assets you already own.
11. Distribution policy. Understand how and when dividends or interest are distributed.
12. Risk level. A cheap fund can still contain highly volatile or concentrated investments.

This checklist prevents “low cost” from becoming a substitute for actual investment analysis. The ETF should fit the portfolio first and be inexpensive second.

Expense Ratio Is Not the Only ETF Cost

An ETF with a 0.03% expense ratio does not necessarily cost exactly 0.03% to own in every practical sense. Trading and account-related costs can exist outside the fund’s published expense ratio.

One example is the bid-ask spread – the difference between the highest price a buyer is offering and the lowest price a seller is willing to accept. Highly liquid ETFs often have narrow spreads, while less frequently traded funds can have wider ones. Frequent trading can make those differences more important.

Brokerage commissions may also apply depending on the platform and jurisdiction. Currency conversion can add another layer of cost for international investors purchasing U.S.-listed securities in dollars. Taxes can further affect the investor’s net result even though they are not part of the ETF expense ratio.

What Is Tracking Difference?

Tracking difference describes the gap between an ETF’s performance and the performance of the benchmark it seeks to follow. An index fund is designed to replicate a benchmark, but its return will not normally match the index perfectly.

Fund expenses contribute to this difference, but they are not the only factor. Portfolio construction, taxes, trading costs, securities lending and the practical process of replicating an index can all affect results.

That means two ETFs with identical stated expense ratios can still deliver slightly different results relative to their benchmarks. Historical tracking should not be used as a guarantee of future performance, but it can provide useful context when comparing funds designed to do essentially the same job.

Low-Cost ETF vs Index Fund – What Is the Difference?

An ETF and an index fund are not mutually exclusive categories. Many ETFs are index funds because they seek to track an index, but ETFs describe an investment vehicle while “index fund” describes an investment approach.

Traditional index mutual funds can also track benchmarks. The major practical differences can include how shares are bought and sold, pricing during the trading day, minimum investments and brokerage availability.

An ETF trades on an exchange while markets are open. A traditional mutual fund generally executes transactions based on its calculated net asset value according to the fund’s dealing rules. Costs vary across both structures, so neither should automatically be assumed to be cheaper in every case.

Low-Cost ETF vs Individual Stocks

An individual stock represents ownership in one company, while a broad ETF can spread an investment across hundreds or thousands of companies. This makes diversification one of the clearest differences.

Buying a single stock avoids an ETF expense ratio, but it creates company-specific risk. If that business performs badly, there are no other holdings inside the position to offset the loss. A diversified ETF reduces dependence on the fortunes of one company, although it remains exposed to broader market declines.

The choice is therefore not simply “fees versus no fees.” It involves concentration, diversification, research requirements, risk and the role the investment is supposed to play.

Can One ETF Be Enough?

One ETF can potentially provide very broad diversification, but whether it is enough depends on what the fund owns and what the investor is trying to achieve. A global equity ETF, for example, can contain thousands of stocks across multiple countries in one holding.

That does not automatically create a complete portfolio for every person. Someone who wants a mix of stocks and bonds, a different risk level or specific geographic exposure may need additional assets.

The number of ETFs is therefore a poor measure of diversification. A portfolio of five overlapping U.S. large-cap funds may be less diversified than a carefully selected portfolio containing only two funds covering distinct asset classes.

A Simple Low-Cost ETF Portfolio Example

A beginner does not need a dozen ETFs simply because a dozen attractive low-cost options exist. Simple portfolios can provide substantial diversification when their components cover distinct markets.

For educational purposes, a basic structure might contain a broad U.S. stock ETF, a broad international stock ETF and a broad bond ETF. The percentage assigned to each would depend on factors such as investment horizon, risk tolerance and financial objectives rather than a universal formula.

Another investor might choose one global equity ETF plus a bond ETF. Someone with a very long horizon and high tolerance for volatility might structure the portfolio differently. The allocation decision generally matters far more than whether the chosen broad-market ETF costs 0.03% or 0.05%.

How to Buy a Low-Cost ETF Step by Step

Buying an ETF usually requires a brokerage account that provides access to the exchange where the fund trades. Account availability, taxes, investor protections and permitted securities vary by country, so international investors should verify local rules rather than assuming a U.S. brokerage setup applies everywhere.

The basic process is:

1. Define the investment goal. Decide what the money is for and when it may be needed.
2. Assess risk tolerance. Consider how much volatility and potential loss you can realistically accept.
3. Choose an appropriate brokerage account. Compare regulation, investment access, fees and tax considerations.
4. Decide what market exposure you need. U.S. stocks, international stocks, bonds and other assets perform different jobs.
5. Compare similar ETFs. Review expense ratios, indexes, holdings, liquidity and tracking.
6. Fund the account. Follow the broker’s deposit process and consider currency conversion costs where applicable.
7. Choose an order type. Understand the difference between market and limit orders before trading.
8. Purchase the ETF. Buy only after reviewing the ticker and order details carefully.
9. Keep records. Preserve transaction and tax information required in your jurisdiction.
10. Review the portfolio periodically. Rebalance when necessary rather than reacting to every market move.

The process itself is straightforward, but the decisions before the trade deserve more attention than the final click. Choosing an investment should come before choosing a ticker.

What Are the Risks of Low-Cost ETFs?

Low cost does not mean low risk. A 0.03% expense ratio can be attached to an ETF capable of losing substantial value during a market decline.

Broad stock ETFs face equity-market risk. International funds add currency, geopolitical and country-specific risks. Bond ETFs can lose value when interest rates move and may also face credit risk depending on their holdings. Sector and thematic ETFs can be particularly concentrated even when their fees appear reasonable.

ETFs can also trade at prices slightly above or below the value of their underlying holdings. Market disruptions can widen spreads and increase short-term pricing differences. Investors should therefore evaluate the underlying assets and structure instead of treating the ETF wrapper itself as a safety feature.

Should You Buy Low-Cost ETFs When the Market Is High?

A market reaching a high level does not reveal with certainty what will happen next. Prices can continue rising, decline sharply or move sideways, and attempts to identify the perfect entry point can leave long-term investors waiting indefinitely.

For money intended to remain invested for many years, the investment horizon, diversification and consistency of the strategy may matter more than predicting a short-term market move. Regular investing can also spread purchases across different market prices, although it does not guarantee a profit or prevent losses.

Money needed in the near future requires a different risk assessment. An inexpensive stock ETF can still fall sharply just before the money is required, which is why investment horizon should be considered before expected returns.

Are Low-Cost ETFs Good for Beginners?

Low-cost broad-market ETFs can be relatively simple tools for beginners because one purchase can provide exposure to many securities. Their low ongoing costs also reduce one drag on long-term returns.

Simplicity should not be confused with certainty. A beginner still needs to understand what the ETF owns, why it is in the portfolio and how much its value could fall.

The strongest starting point is therefore not finding the ETF with the smallest expense ratio. It is building a basic investment plan and then finding low-cost funds capable of implementing that plan.

Common Low-Cost ETF Mistakes

The popularity and simplicity of ETFs can encourage investors to buy first and examine the portfolio later. Many of the most avoidable mistakes come from confusing more funds with more diversification.

Watch for these problems:

1. Choosing solely by expense ratio. A cheap ETF can still provide completely unsuitable exposure.
2. Buying several near-identical ETFs. VOO, IVV and another S&P 500 tracker do not create three independent investment strategies.
3. Chasing last year’s best performer. Recent returns do not establish future leadership.
4. Ignoring portfolio overlap. Several funds can own many of the same companies.
5. Using sector ETFs as if they were diversified market funds. Narrow exposure can create substantial concentration.
6. Investing money needed soon. Stock-market volatility can be damaging when the investment horizon is short.
7. Ignoring taxes and currency costs. International investors can face costs that do not appear in the expense ratio.
8. Trading too frequently. More transactions can increase spreads, taxes and behavioral mistakes.
9. Assuming low-cost means low-volatility. Fees and investment risk are different concepts.
10. Building a complicated portfolio without a reason. Complexity does not guarantee better diversification or returns.

The common thread is straightforward: know what every ETF contributes to the portfolio. If two holdings have essentially the same purpose, ask whether both are really necessary.

How to Compare Two Similar Low-Cost ETFs

When two ETFs track the same or very similar markets, start with their benchmarks and holdings. If those are nearly identical, then compare expense ratios, tracking history, liquidity, spreads, fund size and brokerage considerations.

For example, a 0.02% fund and a 0.03% fund differ by only $1 per year for every $10,000 invested under a simplified constant-balance calculation. A slightly wider bid-ask spread on one transaction can potentially matter more than that annual fee difference, particularly over a short holding period.

Long-term investors should therefore avoid false precision. Costs matter enormously when comparing an expensive fund with a genuinely inexpensive alternative, but once costs are already extremely low, other differences deserve greater weight.

What Makes a Good Low-Cost ETF in 2026?

A useful low-cost ETF combines reasonable expenses with an investment exposure that actually belongs in the portfolio. Low fees alone cannot compensate for an unsuitable index, excessive concentration or a strategy the investor does not understand.

For a broad core holding, characteristics worth examining include diversification, transparent index methodology, sufficient liquidity, competitive costs and reliable benchmark tracking. More specialized ETFs require additional scrutiny because sector, factor, thematic and geographic concentration can materially change risk.

The simplest question remains one of the most useful: if the ticker symbol disappeared from the screen, could you clearly explain what assets you own and why you own them? If not, the fund deserves more research before money is invested.

Low-Cost ETFs Can Keep More Money Working – but Cost Is Only Step One

Low-cost ETFs have made diversified investing accessible at remarkably small ongoing fund expenses. In 2026, major broad-market products charging around 0.03% can provide exposure to hundreds or thousands of securities for only a few dollars annually per $10,000 invested.

But the cheapest ETF is not automatically the right ETF. Investors first need to decide which markets and asset classes fit their objectives, then compare funds providing that exposure. Expense ratio, liquidity, tracking, taxes, overlap and trading costs can then help distinguish between otherwise similar choices.

For beginners, simplicity can be an advantage. A small number of carefully chosen, diversified low-cost ETFs can be easier to understand and maintain than a collection of overlapping funds assembled from rankings. The objective is not to own the most ETFs or find the absolute lowest fee – it is to build a portfolio whose costs, risks and holdings all make sense together.

FAQ About Low-Cost ETFs