Will You Regret It in 10 Years? A Complete Guide to Choosing the Best ETFs for Long-Term Investing

Exchange-Traded Funds (ETFs) have become one of the most popular investment vehicles among individual investors in the U.S. But when asked, “Which ETFs are best for long-term investing?” many still struggle to answer confidently. The ETF market offers an overwhelming array of choices, and selecting the wrong ones could cost you in the long run. In this guide, you’ll learn how to choose the right ETFs for a 10+ year investment horizon—along with real-world examples. By the end, you’ll be equipped to build a portfolio that truly stands the test of time.

What Are ETFs and Why Are They Ideal for Long-Term Investing?

ETFs are funds that track specific indices, sectors, or asset classes and trade on exchanges just like stocks. Their low fees, liquidity, and diversification potential make them particularly well-suited for long-term investors. In the U.S., where individual retirement accounts (IRAs) and 401(k)s form the backbone of many people’s long-term savings, ETFs play a crucial role in helping investors harness the power of compounding over decades.

According to a report by the Investment Company Institute, “ETFs provide cost-effective access to diversified portfolios and have seen increasing adoption among long-term retail investors.”

Why Are ETFs So Effective for Long-Term Portfolios?

Here’s why ETFs are a smart choice for building wealth over time:

  • Maximizing compounding returns: Capture the market’s long-term growth.
  • Low-cost structure: Most index ETFs charge annual fees under 0.10%—much cheaper than mutual funds.
  • Transparency: You always know what assets the ETF holds.
  • Diversification: Reduce risk by spreading exposure across hundreds or thousands of securities.

5 Critical Factors When Choosing ETFs

When selecting ETFs for a long-term portfolio, evaluate these five criteria carefully:

  1. Index composition: Understand the index’s holdings and long-term growth potential.
  2. Expense ratio: Aim for ETFs with fees under 0.1% where possible.
  3. Liquidity and volume: Higher trading volume generally means lower bid-ask spreads and better execution.
  4. Issuer reputation: Stick with established ETF providers like Vanguard, BlackRock (iShares), and State Street (SPDR).
  5. Historical performance and volatility: Analyze past returns and how the ETF behaves during market downturns.

Top ETF Categories for Long-Term Investing

ETFs suitable for long-term investing typically fall into these categories:

  • Broad market index ETFs: Track large indexes like the S&P 500, Russell 3000, or Total Stock Market Index.
  • Dividend-focused ETFs: Invest in companies with a history of consistent dividend growth.
  • Sector ETFs: Focus on sectors with strong long-term growth potential, such as technology or clean energy.
  • Bond ETFs: Add stability and income to your portfolio, especially important as you approach retirement.

Popular Long-Term ETFs Among U.S. Investors

Here are some of the most popular long-term ETFs used by U.S. investors:

ETF NameIndex/Asset ClassExpense RatioHighlights
Vanguard S&P 500 ETF (VOO)S&P 5000.03%Tracks 500 of the largest U.S. companies; ideal core holding
Vanguard Dividend Appreciation ETF (VIG)Dividend growth stocks0.06%Invests in companies with 10+ years of increasing dividends
iShares Core U.S. Aggregate Bond ETF (AGG)U.S. investment-grade bonds0.03%Provides stability and income for balanced portfolios
Vanguard Total Stock Market ETF (VTI)U.S. total stock market0.03%Broad exposure across the entire U.S. stock market

ETF Types to Avoid for Long-Term Investing

Some ETFs are better suited for short-term trading and should generally be avoided in long-term portfolios:

  • Leveraged and inverse ETFs: Designed for daily price movements, not multi-year holding periods.
  • Theme-based “hot trend” ETFs: May perform well temporarily but often lack sustainability over a decade or more.

The U.S. Securities and Exchange Commission (SEC) cautions investors that “leveraged and inverse ETFs are complex products that are typically not suitable for buy-and-hold investors.”

How to Structure a Long-Term ETF Portfolio

Here’s an example of a balanced long-term ETF portfolio:

  • Broad market index ETFs: 50%
  • Dividend-focused ETFs: 20%
  • Sector ETFs (technology, clean energy, etc.): 20%
  • Bond ETFs: 10%

You can adjust these percentages based on your risk tolerance and time horizon. The key is to build a diversified portfolio that you can hold through multiple market cycles.

Tax Considerations and Transaction Costs

Taxes and costs are often overlooked but can significantly impact long-term returns:

  • Domestic ETFs (U.S.): Qualified dividends and long-term capital gains are taxed at favorable rates (typically 15-20%).
  • International ETFs: Subject to foreign withholding taxes; check whether the ETF offers tax-efficient structures.
  • Transaction costs: Many brokers (Fidelity, Charles Schwab, Robinhood) now offer $0 commission ETF trades.

For example, platforms like Fidelity’s mobile app or Schwab Mobile provide commission-free ETF trading with robust research tools.

Risks to Monitor When Investing in ETFs

Even long-term ETF investors should be mindful of these risks:

  • Market risk: Broader economic cycles and events can impact all asset classes.
  • Currency risk: When investing in international ETFs, currency fluctuations can affect returns.
  • Issuer risk: Though rare, there is a risk that an ETF provider may mismanage or shut down a fund.

Winning Strategies for Long-Term ETF Investing

Follow these principles to increase your chances of success:

  • Consistency beats timing: Regular investing via dollar-cost averaging tends to outperform trying to time the market.
  • Automate your investments: Utilize services like Betterment or Wealthfront to automate ETF purchases and rebalancing.
  • Periodic rebalancing: Review your portfolio 1–2 times a year and adjust allocations as needed.
  • Ongoing education: Stay informed about market trends, ETF innovations, and tax changes.

Developing Habits That Pay Off in 10+ Years

Ultimately, patience and discipline are your greatest allies in long-term ETF investing. Resist the temptation to react to short-term market swings and stay focused on your financial goals.

As one prominent investment strategist put it: “ETFs are like a sturdy pair of hiking boots for your financial journey—they won’t get you to the summit overnight, but they’ll support you every step of the way.”

Use this guide as your starting point to craft a long-term ETF strategy that fits your unique needs and goals. Stay curious, stay committed, and your future self will thank you.