VMGMX vs. BSPIX
Compare and contrast key facts about Vanguard Mid-Cap Growth Index Fund Admiral Shares (VMGMX) and iShares S&P 500 Index Fund Institutional Class (BSPIX).
VMGMX is managed by Vanguard. It was launched on Sep 27, 2011. BSPIX is a passively managed fund by iShares that tracks the performance of the S&P 500 Index. It was launched on Apr 28, 1993.
Performance
VMGMX vs. BSPIX - Performance Comparison
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VMGMX vs. BSPIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
VMGMX Vanguard Mid-Cap Growth Index Fund Admiral Shares | -7.61% | 10.69% | 15.65% | 23.93% | -28.84% | 20.48% | 34.45% | 33.85% | -5.61% | 21.83% |
BSPIX iShares S&P 500 Index Fund Institutional Class | -4.63% | 17.75% | 24.85% | 26.17% | -18.20% | 28.55% | 18.35% | 31.35% | -4.87% | 21.20% |
Returns By Period
In the year-to-date period, VMGMX achieves a -7.61% return, which is significantly lower than BSPIX's -4.63% return. Over the past 10 years, VMGMX has underperformed BSPIX with an annualized return of 10.62%, while BSPIX has yielded a comparatively higher 13.85% annualized return.
VMGMX
- 1D
- 3.15%
- 1M
- -7.31%
- YTD
- -7.61%
- 6M
- -12.10%
- 1Y
- 5.25%
- 3Y*
- 10.47%
- 5Y*
- 4.04%
- 10Y*
- 10.62%
BSPIX
- 1D
- 2.64%
- 1M
- -5.29%
- YTD
- -4.63%
- 6M
- -2.48%
- 1Y
- 16.90%
- 3Y*
- 18.07%
- 5Y*
- 11.61%
- 10Y*
- 13.85%
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VMGMX vs. BSPIX - Expense Ratio Comparison
VMGMX has a 0.07% expense ratio, which is lower than BSPIX's 0.10% 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
VMGMX vs. BSPIX — Risk / Return Rank
VMGMX
BSPIX
VMGMX vs. BSPIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Mid-Cap Growth Index Fund Admiral Shares (VMGMX) and iShares S&P 500 Index Fund Institutional Class (BSPIX). 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.
| VMGMX | BSPIX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.28 | 0.96 | -0.67 |
Sortino ratioReturn per unit of downside risk | 0.55 | 1.46 | -0.91 |
Omega ratioGain probability vs. loss probability | 1.07 | 1.22 | -0.15 |
Calmar ratioReturn relative to maximum drawdown | 0.39 | 1.49 | -1.10 |
Martin ratioReturn relative to average drawdown | 1.21 | 7.12 | -5.91 |
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
| VMGMX | BSPIX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.28 | 0.96 | -0.67 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.19 | 0.69 | -0.50 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.51 | 0.77 | -0.26 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.59 | 0.73 | -0.14 |
Correlation
The correlation between VMGMX and BSPIX is 0.90, 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
VMGMX vs. BSPIX - Dividend Comparison
VMGMX's dividend yield for the trailing twelve months is around 0.71%, less than BSPIX's 1.49% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
VMGMX Vanguard Mid-Cap Growth Index Fund Admiral Shares | 0.71% | 0.64% | 0.67% | 0.71% | 0.78% | 0.34% | 0.56% | 0.78% | 0.84% | 0.72% | 0.81% | 0.82% |
BSPIX iShares S&P 500 Index Fund Institutional Class | 1.49% | 1.66% | 1.35% | 1.44% | 1.94% | 1.76% | 1.60% | 1.92% | 1.94% | 1.57% | 2.30% | 2.42% |
Drawdowns
VMGMX vs. BSPIX - Drawdown Comparison
The maximum VMGMX drawdown since its inception was -37.17%, which is greater than BSPIX's maximum drawdown of -33.75%. Use the drawdown chart below to compare losses from any high point for VMGMX and BSPIX.
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Drawdown Indicators
| VMGMX | BSPIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -37.17% | -33.75% | -3.42% |
Max Drawdown (1Y)Largest decline over 1 year | -15.95% | -12.11% | -3.84% |
Max Drawdown (5Y)Largest decline over 5 years | -37.17% | -24.55% | -12.62% |
Max Drawdown (10Y)Largest decline over 10 years | -37.17% | -33.75% | -3.42% |
Current DrawdownCurrent decline from peak | -13.31% | -6.50% | -6.81% |
Average DrawdownAverage peak-to-trough decline | -7.05% | -3.98% | -3.07% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 5.11% | 2.53% | +2.58% |
Volatility
VMGMX vs. BSPIX - Volatility Comparison
Vanguard Mid-Cap Growth Index Fund Admiral Shares (VMGMX) has a higher volatility of 6.47% compared to iShares S&P 500 Index Fund Institutional Class (BSPIX) at 5.18%. This indicates that VMGMX's price experiences larger fluctuations and is considered to be riskier than BSPIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| VMGMX | BSPIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 6.47% | 5.18% | +1.29% |
Volatility (6M)Calculated over the trailing 6-month period | 12.40% | 9.45% | +2.95% |
Volatility (1Y)Calculated over the trailing 1-year period | 21.07% | 18.21% | +2.86% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 21.39% | 16.88% | +4.51% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 20.93% | 18.00% | +2.93% |