BSMIX vs. VIEIX
BSMIX (iShares Russell Small/Mid-Cap Index Fund) and VIEIX (Vanguard Extended Market Index Fund Institutional Shares) are both mutual funds - BSMIX is a Small Cap Blend Equities fund managed by BlackRock, while VIEIX is a Mid Cap Blend Equities fund managed by Vanguard. Over the past 10 years, BSMIX returned 11.77%/yr vs 12.20%/yr for VIEIX. With a 0.97 correlation, they move nearly in lockstep. BSMIX charges 0.12%/yr vs 0.05%/yr for VIEIX.
Performance
BSMIX vs. VIEIX - Performance Comparison
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Returns By Period
In the year-to-date period, BSMIX achieves a 19.06% return, which is significantly higher than VIEIX's 14.93% return. Both investments have delivered pretty close results over the past 10 years, with BSMIX having a 11.77% annualized return and VIEIX not far ahead at 12.20%.
BSMIX
- 1D
- 0.93%
- 1M
- 5.13%
- YTD
- 19.06%
- 6M
- 18.96%
- 1Y
- 36.89%
- 3Y*
- 18.79%
- 5Y*
- 7.82%
- 10Y*
- 11.77%
VIEIX
- 1D
- 1.07%
- 1M
- 5.81%
- YTD
- 14.93%
- 6M
- 13.66%
- 1Y
- 30.15%
- 3Y*
- 20.15%
- 5Y*
- 6.92%
- 10Y*
- 12.20%
BSMIX vs. VIEIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
BSMIX iShares Russell Small/Mid-Cap Index Fund | 19.06% | 11.92% | 12.04% | 17.15% | -18.39% | 18.00% | 20.28% | 27.62% | -10.22% | 16.75% |
VIEIX Vanguard Extended Market Index Fund Institutional Shares | 14.93% | 11.42% | 15.49% | 26.97% | -26.46% | 12.46% | 32.24% | 28.05% | -9.36% | 18.12% |
Correlation
The correlation between BSMIX and VIEIX is 0.97 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.97 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.97 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.97 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.97 |
Correlation (All Time) Calculated using the full available price history since Jan 5, 2016 | 0.97 |
The correlation between BSMIX and VIEIX has been stable across timeframes, ranging from 0.97 to 0.97 - a consistent structural relationship.
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Return for Risk
BSMIX vs. VIEIX — Risk / Return Rank
BSMIX
VIEIX
BSMIX vs. VIEIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Russell Small/Mid-Cap Index Fund (BSMIX) and Vanguard Extended Market Index Fund Institutional Shares (VIEIX). 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.
| BSMIX | VIEIX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.39 | ||
| Sortino ratioReturn per unit of downside risk | +0.53 | ||
| Omega ratioGain probability vs. loss probability | 1.38 | 1.32 | +0.06 |
| Calmar ratioReturn relative to maximum drawdown | 4.15 | 3.13 | +1.01 |
| Martin ratioReturn relative to average drawdown | 15.76 | 11.08 | +4.68 |
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
| BSMIX | VIEIX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 2.26 | 1.87 | +0.39 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.37 | 0.31 | +0.06 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.54 | 0.55 | 0.00 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.56 | 0.40 | +0.15 |
Drawdowns
BSMIX vs. VIEIX - Drawdown Comparison
The maximum BSMIX drawdown since its inception was -41.32%, smaller than the maximum VIEIX drawdown of -58.03%. Use the drawdown chart below to compare losses from any high point for BSMIX and VIEIX.
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Drawdown Indicators
| BSMIX | VIEIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -41.32% | -58.03% | +16.71% |
Max Drawdown (1Y)Largest decline over 1 year | -9.39% | -10.25% | +0.86% |
Max Drawdown (3Y)Largest decline over 3 years | -25.49% | -26.84% | +1.35% |
Max Drawdown (5Y)Largest decline over 5 years | -28.33% | -36.32% | +7.99% |
Max Drawdown (10Y)Largest decline over 10 years | -41.32% | -41.62% | +0.30% |
Current DrawdownCurrent decline from peak | 0.00% | 0.00% | 0.00% |
Average DrawdownAverage peak-to-trough decline | -7.41% | -13.84% | +6.43% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.47% | 2.89% | -0.42% |
Volatility
BSMIX vs. VIEIX - Volatility Comparison
iShares Russell Small/Mid-Cap Index Fund (BSMIX) has a higher volatility of 5.13% compared to Vanguard Extended Market Index Fund Institutional Shares (VIEIX) at 4.69%. This indicates that BSMIX's price experiences larger fluctuations and is considered to be riskier than VIEIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| BSMIX | VIEIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.13% | 4.69% | +0.44% |
Volatility (6M)Calculated over the trailing 6-month period | 12.67% | 12.46% | +0.21% |
Volatility (1Y)Calculated over the trailing 1-year period | 17.21% | 17.17% | +0.04% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 21.18% | 22.34% | -1.16% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 21.71% | 22.36% | -0.65% |
BSMIX vs. VIEIX - Expense Ratio Comparison
BSMIX has a 0.12% expense ratio, which is higher than VIEIX's 0.05% 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%.
Dividends
BSMIX vs. VIEIX - Dividend Comparison
BSMIX's dividend yield for the trailing twelve months is around 2.43%, more than VIEIX's 1.01% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BSMIX iShares Russell Small/Mid-Cap Index Fund | 2.43% | 2.90% | 2.04% | 1.37% | 4.94% | 4.77% | 4.42% | 2.83% | 4.33% | 2.83% | 1.45% | 0.00% |
VIEIX Vanguard Extended Market Index Fund Institutional Shares | 1.01% | 1.14% | 1.10% | 1.26% | 1.16% | 1.14% | 1.08% | 1.31% | 1.67% | 1.27% | 1.45% | 1.37% |
Frequently Asked Questions
With a correlation of 0.97, BSMIX and VIEIX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.
BSMIX has higher volatility (5.13%) compared to VIEIX (4.69%). In terms of maximum drawdown, BSMIX dropped -41.32% vs VIEIX's -58.03%.
BSMIX currently has the higher Sharpe Ratio (2.26 vs 1.87), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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