VMCTX vs. VOO
Compare and contrast key facts about Vanguard Mega Cap Index Fund Institutional Shares (VMCTX) and Vanguard S&P 500 ETF (VOO).
VMCTX is managed by Vanguard. It was launched on Feb 22, 2008. VOO is a passively managed fund by Vanguard that tracks the performance of the S&P 500 Index. It was launched on Sep 7, 2010.
Performance
VMCTX vs. VOO - Performance Comparison
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VMCTX vs. VOO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
VMCTX Vanguard Mega Cap Index Fund Institutional Shares | -8.40% | 19.35% | 27.18% | 29.67% | -19.91% | 27.57% | 21.47% | 31.42% | -3.47% | 22.57% |
VOO Vanguard S&P 500 ETF | -4.42% | 17.82% | 24.98% | 26.32% | -18.17% | 28.79% | 18.32% | 31.37% | -4.50% | 21.77% |
Returns By Period
In the year-to-date period, VMCTX achieves a -8.40% return, which is significantly lower than VOO's -4.42% return. Both investments have delivered pretty close results over the past 10 years, with VMCTX having a 14.36% annualized return and VOO not far behind at 14.05%.
VMCTX
- 1D
- -0.32%
- 1M
- -7.63%
- YTD
- -8.40%
- 6M
- -5.55%
- 1Y
- 15.04%
- 3Y*
- 18.42%
- 5Y*
- 11.83%
- 10Y*
- 14.36%
VOO
- 1D
- 2.86%
- 1M
- -5.01%
- YTD
- -4.42%
- 6M
- -1.84%
- 1Y
- 17.67%
- 3Y*
- 18.27%
- 5Y*
- 11.75%
- 10Y*
- 14.05%
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VMCTX vs. VOO - Expense Ratio Comparison
VMCTX has a 0.06% expense ratio, which is higher than VOO's 0.03% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Return for Risk
VMCTX vs. VOO — Risk / Return Rank
VMCTX
VOO
VMCTX vs. VOO - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Mega Cap Index Fund Institutional Shares (VMCTX) and Vanguard S&P 500 ETF (VOO). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
| VMCTX | VOO | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.84 | 0.98 | -0.14 |
Sortino ratioReturn per unit of downside risk | 1.31 | 1.50 | -0.18 |
Omega ratioGain probability vs. loss probability | 1.20 | 1.23 | -0.03 |
Calmar ratioReturn relative to maximum drawdown | 1.10 | 1.53 | -0.44 |
Martin ratioReturn relative to average drawdown | 4.98 | 7.29 | -2.31 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| VMCTX | VOO | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.84 | 0.98 | -0.14 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.69 | 0.70 | -0.02 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.79 | 0.78 | +0.01 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.54 | 0.83 | -0.29 |
Correlation
The correlation between VMCTX and VOO is 0.99, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.
Dividends
VMCTX vs. VOO - Dividend Comparison
VMCTX's dividend yield for the trailing twelve months is around 1.06%, less than VOO's 1.19% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
VMCTX Vanguard Mega Cap Index Fund Institutional Shares | 1.06% | 0.94% | 1.16% | 1.36% | 1.66% | 1.18% | 1.46% | 1.82% | 2.11% | 1.84% | 2.13% | 2.13% |
VOO Vanguard S&P 500 ETF | 1.19% | 1.13% | 1.24% | 1.46% | 1.69% | 1.25% | 1.54% | 1.88% | 2.06% | 1.78% | 2.02% | 2.10% |
Drawdowns
VMCTX vs. VOO - Drawdown Comparison
The maximum VMCTX drawdown since its inception was -52.00%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for VMCTX and VOO.
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Drawdown Indicators
| VMCTX | VOO | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -52.00% | -33.99% | -18.01% |
Max Drawdown (1Y)Largest decline over 1 year | -12.04% | -11.98% | -0.06% |
Max Drawdown (5Y)Largest decline over 5 years | -25.77% | -24.52% | -1.25% |
Max Drawdown (10Y)Largest decline over 10 years | -32.96% | -33.99% | +1.03% |
Current DrawdownCurrent decline from peak | -9.87% | -6.29% | -3.58% |
Average DrawdownAverage peak-to-trough decline | -7.14% | -3.72% | -3.42% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.65% | 2.52% | +0.13% |
Volatility
VMCTX vs. VOO - Volatility Comparison
The current volatility for Vanguard Mega Cap Index Fund Institutional Shares (VMCTX) is 4.32%, while Vanguard S&P 500 ETF (VOO) has a volatility of 5.29%. This indicates that VMCTX experiences smaller price fluctuations and is considered to be less risky than VOO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| VMCTX | VOO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.32% | 5.29% | -0.97% |
Volatility (6M)Calculated over the trailing 6-month period | 9.38% | 9.44% | -0.06% |
Volatility (1Y)Calculated over the trailing 1-year period | 18.67% | 18.10% | +0.57% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 17.29% | 16.82% | +0.47% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 18.23% | 17.99% | +0.24% |