Vanguard VOO's Returns Since 2010 Hint at What $500 a Month Could Build by Retirement

Vanguard's S&P 500 ETF (NYSEARCA: VOO) has averaged roughly 12.5% annual returns since its September 2010 launch, making it one of the most popular low-cost ways to invest in the broad stock market. Investing $500 a month for 20 years means contributing $120,000, but at that historical pace the total could grow to roughly $456,500.

The range shifts depending on what the market delivers. At a more conservative 8% average, the same contributions grow to about $273,600, and a 10% assumption lands near $342,400. Gauging your financial fitness for retirement means understanding why the gap between those outcomes is so wide and which assumptions your plan depends on.

How $500 a month adds up

The monthly deposit starts the process, and compound growth takes over once your earlier contributions start earning returns of their own. Your total contributions over 20 years come to $120,000, but compound growth could account for two to three times that amount depending on market conditions.

The SEC's compound interest calculator lets you model different return assumptions and timeframes. Plugging in $500 a month at 10% for 20 years shows roughly $342,400, with most of the growth arriving in the final stretch as compounding accelerates.

VOO's track record since launch

VOO has averaged about 12.5% annual returns since it began trading in September 2010, Motley Fool reported. The fund charges an expense ratio of just 0.03%, meaning nearly every dollar stays invested rather than going to management fees.

That stretch, though, included one of the strongest bull markets in history, driven heavily by a handful of technology companies. A $10,000 investment in VOO a decade ago grew to roughly $41,300 with dividends reinvested, Wisesheets data shows, an exceptional run that may not repeat at the same pace.

Why the next decade may differ

The S&P 500 recently traded at about 29 times trailing earnings, well above its long-term median of roughly 18 to 20, FinanceBuzz reported. Historically, elevated starting valuations have been followed by stretches of lower returns, not a guarantee but a persistent pattern across decades of market data.

The 20-year average return through December 2025 was approximately 11%, and the 30-year average sat at about 10.4%, FinanceBuzz documented. Planning around those more modest numbers rather than the exceptional recent decade gives a retirement plan more room to absorb a surprise.

Risks worth watching before you retire

Several factors could push your actual returns above or below the historical range, and most of them sit outside your control.

• VOO lost roughly 18% in 2022, its worst calendar year in the past decade, Wisesheets data shows. A drop like that early in retirement could set a portfolio back for years.
• A million-dollar portfolio in 30 years might only buy what roughly $548,000 buys in current dollars, Motley Fool noted, as inflation erodes your purchasing power.
• The S&P 500 is heavily weighted toward a handful of technology companies, and a slowdown in AI spending or a regulatory shift could hit the index harder than its diversified name suggests, FinanceBuzz noted.

These risks are worth factoring into a plan that holds up even when the market doesn't, especially if retirement is within sight.

Why timing matters near retirement

Someone with 20 years to go has time to wait out a bad stretch. Someone five years from retirement doesn't. A sharp decline right before or during withdrawals may permanently reduce how long your savings last, because you're selling shares at lower prices to cover living expenses.

FinanceBuzz noted that stress-testing a withdrawal plan against a 10% return assumption, rather than the recent 15%, gives a more realistic picture of whether the money lasts through retirement. The same fund that builds wealth over decades may work against you if the timing turns.

Why simplicity still works

More than 84% of professionally managed funds failed to beat the S&P 500 over the past decade, based on SPIVA Scorecard data cited by FinanceBuzz. That track record is part of why VOO manages over a trillion dollars in assets, because most investors are better off owning the market than trying to outsmart it.

The 0.03% annual fee means you keep nearly every dollar the market generates, and that matters enormously when compounding over decades. Even small fee differences eat into long-term returns in ways that are hard to see year to year but obvious over 20 or 30.

Growth builds it, planning protects it

VOO's worst drawdown over the past decade reached roughly 34%, Wisesheets data shows. A retiree who started withdrawals at that point would have locked in losses a younger investor could have waited out. The growth potential is real, but the withdrawal plan determines whether the math holds when it matters most.

Bottom line

VOO's track record is among the strongest available to an everyday investor, and $500 a month shows how consistent contributions compound into a meaningful sum. But the returns of the past decade are not a promise about the next one.

The earlier you start investing, the more time compound growth has to work in your favor and the more room your savings have to absorb a bad year along the way. Planning around the long-term average rather than the exceptional recent stretch may be the difference between a retirement that works and one that falls short.

This article is for informational purposes only and should not be considered investment advice.

You May Also Like

Almost 80% of Americans Fear a Retirement Age Increase — Here’s the Real Reason Why

By FinanceBuzz Editors

10 Smart Money Moves to Retire Stress Free

By FinanceBuzz Editors

The Easiest Way to Diversify Your Investment Portfolio With Fine Art

By FinanceBuzz Editors

7 Brilliant Ways to Build Wealth After 40

By FinanceBuzz Editors

5 Ways Seniors Are Throwing Away Money

By FinanceBuzz Editors

Best High-Yield Savings Accounts of November 2026, Compared

By FinanceBuzz Editors

Help Protect Your Savings From Stock Market Volatility With Gold

American Hartford Gold Benefits

• American Hartford Gold helps individuals protect their retirement by rolling over IRAs and 401(k)s into physical gold.
• Includes FREE IRA rollover and storage for up to 3 years.
• Get up to $20,000 in free silver on qualifying purchases.

Download your guide for free

---

Subscribe Today

Learn how to make an extra $200

Get vetted side hustles and proven ways to earn extra cash sent to your inbox.

or

Subscribe Now →

By submitting this form you agree to receive emails from FinanceBuzz and to the privacy policy and terms