ETF Versus

MGC vs SPY

Vanguard Mega Cap Index Fund vs State Street SPDR S&P 500 ETF Trust

Last updated: 2026-04-02

MGC

Vanguard Mega Cap Index Fund (MGC) is an exchange-traded fund that provides exposure to large-cap U.S. equities across growth and value styles. It charges a very low expense ratio of 0.05%. The fund offers a moderate dividend yield of 1.01%. Launched in 2007, the fund has a 19-year track record.

AUM: $8.4B ER: 0.05% Yield: 1.01% Since: Dec 24, 2007
SPY State Street

State Street SPDR S&P 500 ETF Trust (SPY) is an exchange-traded fund issued by State Street that provides exposure to large-cap U.S. equities across growth and value styles. It charges a low expense ratio of 0.09%. The fund offers a moderate dividend yield of 1.13%. Launched in 1993, the fund has a 33-year track record.

AUM: $636.7B ER: 0.09% Yield: 1.13% Since: Jan 22, 1993

Quick Verdict

MGC has a slightly lower expense ratio (0.05% vs 0.09%), saving about $79 per $10,000 over 10 years. Both funds have delivered similar 1-year returns (17.8% vs 16.8%), tracking closely.

Key Metrics

Metric MGC SPY
Expense Ratio 0.05% 0.09%
Dividend Yield 1.0% 1.1%
Fund Family N/A State Street
Category US Large Cap Blend US Large Cap Blend

Performance Chart

Indexed to 100 at start (5-year comparison)

85 104 123 142 161 180 2021-04 2022-06 2023-09 2024-12 2026-04
MGC +65.6%
SPY +61.2%

Performance Comparison

Period MGC SPY Difference
1 Month -4.37% -4.54% +0.17%
3 Months -5.14% -4.09% -1.05%
6 Months -2.78% -2.09% -0.69%
YTD -5.14% -4.09% -1.05%
1 Year +17.79% +16.80% +0.99%
3 Years +65.68% +59.45% +6.23%
5 Years +65.63% +61.25% +4.38%

Fee Impact Over Time

Estimated fee cost difference assuming 8% annual returns

Investment Period MGC Fees SPY Fees You Save
$10.000 10 years $100 $179 $79
$10.000 20 years $430 $771 $341
$10.000 30 years $1.388 $2.486 $1.097
$50.000 10 years $499 $896 $397
$50.000 30 years $6.941 $12.428 $5.486
$100.000 30 years $13.882 $24.855 $10.973

Risk Metrics

Based on 5 years of daily returns

Metric MGC SPY
Annualized Volatility 17.3% 17.1%
Max Drawdown -26.6% -25.4%
Sharpe Ratio 0.41 0.38

Dividend Comparison

Metric MGC SPY
Annual Dividend (per share) $2.42 $7.38
Dividend Yield 1.01% 1.13%
Distribution Frequency Quarterly Quarterly

Top Holdings

8 of top 9 holdings overlap (89% overlap in top holdings)

MGC Top Holdings

NameWeight
NVIDIA CorporationNVDA8.53%
Apple Inc.AAPL8.14%
Microsoft CorporationMSFT6.09%
Amazon.com, Inc.AMZN4.22%
Broadcom Inc.AVGO3.15%
Alphabet Inc.GOOG2.99%
Meta Platforms, Inc.META2.95%
Tesla, Inc.TSLA2.37%
Eli Lilly and CompanyLLY1.87%

SPY Top Holdings

NameWeight
NVIDIA CorporationNVDA7.58%
Apple Inc.AAPL6.66%
Microsoft CorporationMSFT4.91%
Amazon.com, Inc.AMZN3.64%
Broadcom Inc.AVGO2.62%
Alphabet Inc.GOOG2.40%
Meta Platforms, Inc.META2.24%
Tesla, Inc.TSLA1.87%
Berkshire Hathaway Inc.BRK.B1.57%

Which One Should You Choose?

Choose MGC if...

you want the lowest fees and plan to buy and hold long-term. Over decades, the expense ratio difference compounds significantly.

Either works if...

you just need broad us large cap blend exposure. Both are solid options — pick whichever your brokerage offers commission-free.

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