MGK vs. VMGAX
Compare and contrast key facts about Vanguard Mega Cap Growth ETF (MGK) and Vanguard Mega Cap Growth Index Fund Institutional Shares (VMGAX).
MGK is a passively managed fund by Vanguard that tracks the performance of the CRSP US Mega Cap Growth Index. It was launched on Dec 17, 2007. VMGAX is managed by Vanguard. It was launched on Apr 3, 2008.
Performance
MGK vs. VMGAX - Performance Comparison
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MGK vs. VMGAX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
MGK Vanguard Mega Cap Growth ETF | -9.86% | 20.67% | 32.94% | 51.67% | -33.59% | 28.58% | 41.01% | 37.38% | -2.91% | 29.49% |
VMGAX Vanguard Mega Cap Growth Index Fund Institutional Shares | -10.88% | 20.73% | 32.98% | 51.57% | -33.55% | 28.50% | 41.02% | 37.54% | -2.86% | 29.49% |
Returns By Period
In the year-to-date period, MGK achieves a -9.86% return, which is significantly higher than VMGAX's -10.88% return. Both investments have delivered pretty close results over the past 10 years, with MGK having a 16.97% annualized return and VMGAX not far behind at 16.86%.
MGK
- 1D
- 1.17%
- 1M
- -4.13%
- YTD
- -9.86%
- 6M
- -7.94%
- 1Y
- 19.83%
- 3Y*
- 22.59%
- 5Y*
- 12.64%
- 10Y*
- 16.97%
VMGAX
- 1D
- 4.01%
- 1M
- -5.22%
- YTD
- -10.88%
- 6M
- -8.98%
- 1Y
- 18.45%
- 3Y*
- 22.15%
- 5Y*
- 12.39%
- 10Y*
- 16.86%
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MGK vs. VMGAX - Expense Ratio Comparison
MGK has a 0.05% expense ratio, which is lower than VMGAX's 0.06% expense ratio. Despite the difference, 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
MGK vs. VMGAX — Risk / Return Rank
MGK
VMGAX
MGK vs. VMGAX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Mega Cap Growth ETF (MGK) and Vanguard Mega Cap Growth Index Fund Institutional Shares (VMGAX). 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.
| MGK | VMGAX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.85 | 0.84 | +0.02 |
Sortino ratioReturn per unit of downside risk | 1.39 | 1.37 | +0.02 |
Omega ratioGain probability vs. loss probability | 1.19 | 1.19 | 0.00 |
Calmar ratioReturn relative to maximum drawdown | 1.23 | 1.17 | +0.06 |
Martin ratioReturn relative to average drawdown | 4.27 | 4.12 | +0.15 |
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
| MGK | VMGAX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.85 | 0.84 | +0.02 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.56 | 0.55 | +0.01 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.78 | 0.77 | +0.01 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.60 | 0.59 | +0.01 |
Correlation
The correlation between MGK and VMGAX is 1.00, 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
MGK vs. VMGAX - Dividend Comparison
MGK's dividend yield for the trailing twelve months is around 0.39%, less than VMGAX's 0.40% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
MGK Vanguard Mega Cap Growth ETF | 0.39% | 0.35% | 0.43% | 0.50% | 0.70% | 0.41% | 0.65% | 0.85% | 1.12% | 1.23% | 1.53% | 1.43% |
VMGAX Vanguard Mega Cap Growth Index Fund Institutional Shares | 0.40% | 0.36% | 0.44% | 0.51% | 0.71% | 0.42% | 0.65% | 0.86% | 1.13% | 1.23% | 1.53% | 1.44% |
Drawdowns
MGK vs. VMGAX - Drawdown Comparison
The maximum MGK drawdown since its inception was -47.97%, roughly equal to the maximum VMGAX drawdown of -47.97%. Use the drawdown chart below to compare losses from any high point for MGK and VMGAX.
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Drawdown Indicators
| MGK | VMGAX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -47.97% | -47.97% | 0.00% |
Max Drawdown (1Y)Largest decline over 1 year | -16.85% | -16.78% | -0.07% |
Max Drawdown (5Y)Largest decline over 5 years | -36.01% | -36.03% | +0.02% |
Max Drawdown (10Y)Largest decline over 10 years | -36.01% | -36.03% | +0.02% |
Current DrawdownCurrent decline from peak | -12.56% | -13.45% | +0.89% |
Average DrawdownAverage peak-to-trough decline | -7.51% | -7.49% | -0.02% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.87% | 4.76% | +0.11% |
Volatility
MGK vs. VMGAX - Volatility Comparison
Vanguard Mega Cap Growth ETF (MGK) and Vanguard Mega Cap Growth Index Fund Institutional Shares (VMGAX) have volatilities of 7.13% and 7.10%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| MGK | VMGAX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 7.13% | 7.10% | +0.03% |
Volatility (6M)Calculated over the trailing 6-month period | 12.93% | 12.93% | 0.00% |
Volatility (1Y)Calculated over the trailing 1-year period | 23.35% | 23.47% | -0.12% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 22.63% | 22.72% | -0.09% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 21.82% | 21.83% | -0.01% |