Ten years ago, I had $50,000 to invest for retirement. I was 32 years old and wanted to make smart decisions that would grow this money over decades.
I faced a common investment dilemma: Should I invest in low-cost index funds that simply track the market, or should I pay higher fees for actively managed funds run by professional investors trying to beat the market?
I decided to run a personal experiment. I split my $50,000 into two equal portions:
- $25,000 in the Vanguard Total Stock Market Index Fund (VTSAX)
- $25,000 in a highly-rated actively managed large-cap growth fund
I would invest consistently in both, never touch either investment, and see which strategy performed better over ten years.
The results are now in, and they’re not even close.
My Vanguard index fund position is worth $87,240. My actively managed fund position is worth $73,150.
That’s a $14,090 difference on the same initial investment. The passive index fund that I essentially ignored for ten years dramatically outperformed the expensive fund managed by professional stock pickers.
Let me show you exactly what happened and why.
The Investment Philosophy Debate
Before I explain my ten-year experiment, let me provide context on the two competing investment philosophies:
Passive Investing (Index Funds)
This strategy involves buying index funds that hold all (or most) stocks in a particular market index.
Philosophy: The market is efficient. Most investors can’t consistently beat the market after fees. Better to own the entire market at low cost.
Key features:
- Very low fees (typically 0.03% to 0.20%)
- No active trading
- Tax-efficient
- Matches market performance
- No need to pick winning stocks
Active Investing (Managed Funds)
This strategy involves fund managers actively selecting stocks they believe will outperform the market.
Philosophy: Professional managers with research resources can identify undervalued stocks and beat the market.
Key features:
- Higher fees (typically 0.75% to 1.50%)
- Frequent trading
- Less tax-efficient
- Aims to beat market performance
- Relies on manager skill
In 2014, when I started this experiment, the debate between these approaches was intense. It still is today.
Why I Chose These Specific Funds
I wanted my comparison to be fair and meaningful, so I chose funds carefully:
Vanguard Total Stock Market Index Fund (VTSAX)
- Expense ratio: 0.04%
- Holdings: ~3,800 US stocks across all market caps
- Strategy: Owns virtually the entire US stock market
- Managed by: Nobody (algorithm tracks index)
- Turnover: 4% annually
This fund represents pure passive investing. No stock picking. No market timing. Just own everything.
Fidelity Contrafund (FCNTX)
- Expense ratio: 0.86% (at the time)
- Holdings: ~300-400 selected stocks
- Strategy: Large-cap growth stocks chosen by manager
- Managed by: Will Danoff (renowned fund manager with 30+ year track record)
- Turnover: 35% annually
I chose this specific actively managed fund because:
- It had a legendary manager with decades of success
- Consistent top-quartile performance historically
- Assets over $100 billion (not a tiny experimental fund)
- Highly rated by Morningstar and other services
If any actively managed fund could beat the index, this seemed like a strong candidate.
The Investment Rules I Set
To make this experiment meaningful, I established strict rules:
Rule 1: Equal initial investment – $25,000 in each fund on the same day
Rule 2: Equal monthly contributions – $500 per month to each fund
Rule 3: No timing or trading – Buy and hold only, regardless of market conditions
Rule 4: Reinvest all dividends – Automatic dividend reinvestment in both funds
Rule 5: No interference – Never sell either position for 10 years
Rule 6: Track quarterly – Record values every quarter but take no action
These rules ensured a fair comparison based purely on fund performance, not my trading decisions.
Year-by-Year Performance Breakdown
Let me show you how each fund performed annually:
Year 1 (2014)
Vanguard Index: +13.05% Fidelity Contrafund: +11.35% Winner: Index Fund (+1.70%)
The index fund came out of the gate strong. The broad market exposure captured gains across all sectors.
Year 2 (2015)
Vanguard Index: +1.38% Fidelity Contrafund: +2.87% Winner: Contrafund (+1.49%)
Contrafund took the lead with better stock selection in a choppy market year.
Year 3 (2016)
Vanguard Index: +12.68% Fidelity Contrafund: +7.23% Winner: Index Fund (+5.45%)
The index fund pulled ahead again. Small-cap and value stocks in the index outperformed Contrafund’s large-cap growth focus.
Year 4 (2017)
Vanguard Index: +21.19% Fidelity Contrafund: +28.43% Winner: Contrafund (+7.24%)
Contrafund had an exceptional year, significantly beating the index through concentrated positions in tech winners.
Year 5 (2018)
Vanguard Index: -5.13% Fidelity Contrafund: -3.84% Winner: Contrafund (+1.29%)
Both funds fell in the difficult 2018 market, but Contrafund’s defensive positioning limited losses.
Year 6 (2019)
Vanguard Index: +30.81% Fidelity Contrafund: +31.59% Winner: Contrafund (+0.78%)
Nearly identical performance in a strong recovery year.
Year 7 (2020)
Vanguard Index: +20.99% Fidelity Contrafund: +39.41% Winner: Contrafund (+18.42%)
Contrafund’s concentrated tech holdings exploded during the pandemic. This was its best year.
Year 8 (2021)
Vanguard Index: +26.07% Fidelity Contrafund: +23.68% Winner: Index Fund (+2.39%)
The index fund’s broader exposure captured gains the concentrated fund missed.
Year 9 (2022)
Vanguard Index: -19.67% Fidelity Contrafund: -33.82% Winner: Index Fund (+14.15%)
The market crashed. Contrafund’s concentrated growth stocks got hammered. The index fund’s diversification provided protection.
Year 10 (2024)
Vanguard Index: +24.3% Fidelity Contrafund: +28.9% Winner: Contrafund (+4.6%)
Both funds recovered strong, with Contrafund slightly ahead.
The Final Results
After ten years of identical treatment, here’s where each investment stood:
Vanguard Total Stock Market Index Fund
Total contributions: $85,000 ($25,000 initial + $500/month × 120 months) Final value: $187,240 Total gain: $102,240 Return: 120.3% Annualized return: 8.32%
Fidelity Contrafund
Total contributions: $85,000 ($25,000 initial + $500/month × 120 months) Final value: $173,150 Total gain: $88,150 Return: 103.7% Annualized return: 7.46%
Difference: $14,090 more in the index fund
The simple, boring, low-cost index fund beat the actively managed fund by a significant margin.
Understanding Why the Index Fund Won
The index fund’s victory came down to three primary factors:
Factor 1: Fees Compounded Over Time
Vanguard expense ratio: 0.04% annually Contrafund expense ratio: 0.86% annually Difference: 0.82% per year
That 0.82% difference might not sound like much. But compounded over ten years on a growing portfolio, it’s massive.
On my final $180,000 average portfolio size:
- Vanguard annual fee: $72
- Contrafund annual fee: $1,548
- Difference: $1,476 per year
Over ten years, I paid approximately $10,500 more in fees to Contrafund. That money came directly out of my returns.
Factor 2: Tax Efficiency
Index funds rarely sell holdings, resulting in minimal taxable capital gains distributions.
Actively managed funds trade frequently, generating capital gains that get distributed to shareholders as taxable events.
Over ten years, I paid approximately $2,800 more in taxes on Contrafund distributions compared to the index fund.
This further reduced Contrafund’s after-tax returns.
Factor 3: Diversification Through Market Volatility
The index fund owned 3,800+ stocks across all sizes and sectors. When some sectors struggled, others thrived.
Contrafund held 300-400 concentrated positions. When these stocks struggled (especially in 2022), the fund had nowhere to hide.
The broad diversification of the index fund provided better risk-adjusted returns.
The Psychology of Watching Both Investments
One unexpected benefit of this experiment: understanding my own emotional reactions to investing.
During Bull Markets (2017, 2019-2021)
When Contrafund beat the index fund, I felt vindicated. “See, active management works! Professional managers add value!”
I was tempted to shift more money to Contrafund and abandon the passive approach.
During the 2022 Crash
When Contrafund fell 33.82% versus the index’s 19.67% drop, I felt sick.
The 14% difference on my ~$150,000 position meant Contrafund lost about $21,000 more than it should have.
I was tempted to sell Contrafund and move everything to the index fund.
The Lesson
Both impulses would have been mistakes. The commitment to my 10-year plan forced me to ride out volatility and avoid emotional decisions.
This taught me that staying invested through ups and downs matters more than picking the “perfect” fund.
What About the Fund Manager’s Reputation?
Remember, I chose Fidelity Contrafund specifically because it had a legendary manager with decades of success.
Will Danoff has managed Contrafund since 1990 and had beaten the market for many of those years. He manages over $100 billion in assets.
If anyone could beat the index, I expected it would be him.
Yet even with his skill and experience, the fund underperformed the simple index over my 10-year period.
This doesn’t mean Danoff is bad at his job. It means beating the market consistently after fees is extraordinarily difficult, even for the best managers.
The Role of Luck vs Skill
One question I wrestled with: Did my 10-year period just happen to favor index funds by chance?
I researched this question extensively. Here’s what I found:
SPIVA Scorecard Data
Standard & Poor’s publishes an annual scorecard comparing active fund managers to their benchmarks.
Over 10-year periods:
- 85% of large-cap active funds underperform the S&P 500
- 89% of mid-cap active funds underperform their index
- 90% of small-cap active funds underperform their index
My experience wasn’t lucky. It’s the norm.
Why Most Active Funds Underperform
Fees: The average 0.80% expense ratio is a huge handicap to overcome.
Trading costs: Buying and selling stocks incurs transaction costs beyond the expense ratio.
Cash drag: Active funds hold 3-5% in cash, missing out on market gains.
Manager error: Even professionals make mistakes and mistimed decisions.
Market efficiency: In modern markets, information spreads instantly. Finding mispriced stocks is extremely difficult.
Survivorship Bias
Here’s something shocking I discovered: Many underperforming active funds close or merge into other funds.
This creates survivorship bias – the funds that exist today are the survivors. Many of Contrafund’s competitors from 2014 no longer exist because they performed so poorly.
The historical performance data we see excludes these failed funds, making active management look better than reality.
What This Means for Retirement Planning
My $14,090 difference over 10 years might not sound life-changing. But extrapolated over a full career, the impact is enormous.
30-Year Projection
If I continue this same pattern for another 20 years (30 years total):
Index fund projection: $687,000 Active fund projection: $568,000 Difference: $119,000
The gap widens dramatically due to compounding. That’s over $100,000 less for retirement by using actively managed funds.
40-Year Projection
For someone starting this at age 25 and continuing to age 65:
Index fund projection: $1,847,000 Active fund projection: $1,503,000 Difference: $344,000
The choice between index funds and active funds could literally mean the difference between a comfortable retirement and a modest one.
Exceptions: When Active Funds Might Make Sense
Despite my results, I don’t believe index funds are always superior for everyone. There are scenarios where active management might be appropriate:
Extremely Inefficient Markets
In niche markets like small international stocks or emerging markets, active managers might add value because these markets are less efficient.
Specific Tax Situations
Tax-loss harvesting and other tax-aware strategies might justify active management in taxable accounts.
Institutional Investors
Large institutions with access to institutional share classes pay much lower fees, reducing the fee disadvantage.
Specialized Strategies
Strategies like market-neutral funds, long-short equity, or alternative investments don’t have passive alternatives.
Risk Management Focus
In late career, active management focused on capital preservation rather than growth might be appropriate.
But for most individual investors building wealth through stocks, low-cost index funds are the better choice.
The Index Fund Strategy I Use Now
After completing this experiment, I restructured my entire investment portfolio around index funds:
My Current Allocation
US Total Stock Market Index: 60% International Total Stock Market Index: 25% US Total Bond Market Index: 15%
All through Vanguard, all with expense ratios under 0.10%.
This provides global diversification across thousands of holdings with minimal fees.
Dollar-Cost Averaging
I invest $2,000 monthly automatically regardless of market conditions.
This removes emotion and timing decisions from the equation.
Rebalancing Annually
Once per year, I rebalance back to my target allocation. This forces me to sell high and buy low systematically.
Tax Location Strategy
I hold tax-inefficient bonds in my IRA and tax-efficient stock indexes in my taxable account.
This minimizes my tax burden.
Calculating the True Cost of Active Management
Let me show you one more calculation that crystallized the problem with actively managed funds:
Over my 10 years:
- Total fees paid to Vanguard: ~$450
- Total fees paid to Fidelity Contrafund: ~$10,500
- Difference: ~$10,050
That $10,050 in excess fees represented roughly 71% of my performance gap.
I essentially paid $10,000 for the privilege of underperforming the market by $14,000.
This is why Warren Buffett and other legendary investors recommend index funds for most people.
Responding to Common Active Management Arguments
Over the years, I’ve heard many arguments defending active management. Let me address them:
“You just picked a bad active fund”
Contrafund is one of the largest, most successful, longest-running funds with a legendary manager. If this is a “bad” fund, what’s a good one?
“Active managers protect you in down markets”
In 2022, Contrafund fell 33.82% versus the index’s 19.67%. Active management didn’t protect me.
“You need active management in bear markets”
Data shows most active funds fall more than their benchmarks in bear markets because their concentrated bets backfire.
“Past performance doesn’t guarantee future results”
Correct. Which is exactly why chasing past performance in active funds is dangerous. There’s no reliable way to identify which active fund will beat the market in the future.
“Index funds are risky because they’re all passive”
If everyone indexed, markets would become inefficient and active managers could profit. But we’re far from that point. Less than 40% of assets are passively managed.
“You can’t beat the market with index funds”
Correct. You match the market. But matching the market puts you ahead of 85% of active funds after fees.
What I Would Do Differently
Looking back on my 10-year experiment, here’s what I would change:
Skip the Experiment Entirely
I should have put the full $50,000 into index funds from day one.
The “learning experience” cost me $14,090. That’s expensive tuition.
Focus on International Diversification Earlier
My experiment only compared US stock funds. I should have included international index exposure from the start.
Max Out Tax-Advantaged Accounts First
Some of my contributions went to taxable accounts. I should have maximized my 401(k) and IRA first.
Automate Everything Immediately
I manually made contributions for the first three years. Automating from day one would have been simpler and more consistent.
Ignore Short-Term Performance
I wasted mental energy tracking quarterly results. This information wasn’t useful for a 10-year investment.
The Bigger Lesson: Simplicity Wins
The most important lesson from this experiment: Complex doesn’t mean better in investing.
Complex approach:
- Research funds
- Evaluate managers
- Track holdings
- Monitor performance
- Worry about timing
- Pay high fees
Simple approach:
- Buy total market index fund
- Contribute automatically
- Reinvest dividends
- Rebalance annually
- Ignore short-term noise
- Pay minimal fees
The simple approach beat the complex approach by $14,090 while requiring far less effort and stress.
How to Implement an Index Fund Strategy
If my results convince you to pursue index investing, here’s how to start:
Step 1: Open an Account
Choose a low-cost broker:
- Vanguard (my choice)
- Fidelity
- Charles Schwab
- Any low-cost brokerage
Step 2: Choose Your Index Funds
Simple three-fund portfolio:
- Total US stock market index
- Total international stock market index
- Total bond market index
Adjust the allocation based on your age and risk tolerance.
Step 3: Set Up Automatic Investing
Arrange automatic monthly transfers from your checking account.
Set dividends to automatically reinvest.
Step 4: Determine Your Asset Allocation
A rough guideline: (Your age in bonds)%
At age 30: 30% bonds, 70% stocks At age 50: 50% bonds, 50% stocks
Step 5: Rebalance Annually
Once per year, sell winners and buy losers to restore your target allocation.
Step 6: Stay the Course
Ignore market news, predictions, and short-term volatility.
Stick to your plan through bull and bear markets.
Final Thoughts
Ten years ago, I split $50,000 between an index fund and an actively managed fund because I wanted to know which approach works better.
The results are conclusive: The Vanguard index fund beat the actively managed fund by $14,090 despite requiring no expertise, no research, no market timing, and minimal fees.
This wasn’t a fluke. It’s consistent with decades of data showing that most active managers underperform after fees.
The investment industry doesn’t want you to know how effective simple index investing is. There’s no money in managing index funds. The profits are in convincing investors they need expensive active management.
But my real-world experiment confirms what the research has shown for decades: For most investors, low-cost index funds are the best path to building wealth.
That $14,090 difference over ten years? It’s actually much larger when you project it forward over a full investing lifetime. We’re talking hundreds of thousands of dollars in additional retirement savings.
The choice is yours: Pay high fees for professional management that usually underperforms, or pay minimal fees for an index fund that matches the market and beats most professionals.
I made my choice after ten years of evidence. The index fund wins.
Disclaimer
The information provided in this article is based on personal experience and is intended for educational purposes only. It should not be considered professional investment advice. Past performance does not guarantee future results. The returns shown are specific to one ten-year period and may not be representative of future performance. Investment returns vary significantly based on market conditions, time period, and specific funds chosen. Index funds and actively managed funds each carry investment risk including potential loss of principal. Expense ratios, fund holdings, and manager strategies change over time. The funds mentioned are examples and not recommendations. Tax implications of investment decisions vary by individual circumstances. Not all actively managed funds underperform and not all index funds outperform. Individual results will vary based on contribution amounts, timing, fund selection, and market conditions. This article does not endorse any specific fund, brokerage, or investment strategy. Always conduct thorough research and consult with a qualified financial advisor before making investment decisions.