VIEIX vs. BSMIX
VIEIX (Vanguard Extended Market Index Fund Institutional Shares) and BSMIX (iShares Russell Small/Mid-Cap Index Fund) are both mutual funds - VIEIX is a Mid Cap Blend Equities fund tracking the Spliced Extended Market Index, while BSMIX is a Small Cap Blend Equities fund managed by BlackRock. Over the past 10 years, VIEIX returned 11.74%/yr vs 11.48%/yr for BSMIX. Their 0.97 correlation means they have historically moved very closely together. VIEIX charges 0.04%/yr vs 0.12%/yr for BSMIX.
Performance
VIEIX vs. BSMIX - Performance Comparison
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Returns By Period
In the year-to-date period, VIEIX achieves a 13.51% return, which is significantly lower than BSMIX's 19.44% return. Both investments have delivered pretty close results over the past 10 years, with VIEIX having a 11.74% annualized return and BSMIX not far behind at 11.48%.
VIEIX
- 1D
- -0.41%
- 1M
- -3.02%
- 6M
- 10.17%
- YTD
- 13.51%
- 1Y
- 23.28%
- 3Y*
- 15.99%
- 5Y*
- 6.11%
- 10Y*
- 11.74%
- ALL TIME*
- 9.03%
BSMIX
- 1D
- -0.37%
- 1M
- -1.81%
- 6M
- 12.72%
- YTD
- 19.44%
- 1Y
- 32.78%
- 3Y*
- 15.55%
- 5Y*
- 8.02%
- 10Y*
- 11.48%
- ALL TIME*
- 11.83%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
| $0.00 | $0.00 | $0.00 |
VIEIX vs. BSMIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
VIEIX Vanguard Extended Market Index Fund Institutional Shares | 13.51% | 11.42% | 15.49% | 26.97% | -26.46% | 12.46% | 32.24% | 28.05% | -9.36% | 18.12% |
BSMIX iShares Russell Small/Mid-Cap Index Fund | 19.44% | 11.92% | 12.04% | 17.15% | -18.39% | 18.00% | 20.28% | 27.62% | -10.22% | 16.75% |
Correlation
The correlation between VIEIX and BSMIX is 0.97 - they have historically moved very closely together. At this level, their price movements offset little of one another.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.97 |
Correlation (3Y) Balances recent behavior with more history. | 0.97 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.97 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.97 |
Correlation (All Time) Calculated using the full available price history since Jan 4, 2016 | 0.97 |
The correlation between VIEIX and BSMIX has been stable across timeframes, ranging from 0.97 to 0.97 - a consistent structural relationship.
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Return for Risk
VIEIX vs. BSMIX — Risk / Return Rank
VIEIX
BSMIX
VIEIX vs. BSMIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Extended Market Index Fund Institutional Shares (VIEIX) and iShares Russell Small/Mid-Cap Index Fund (BSMIX). 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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| VIEIX | BSMIX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.57 | ||
| Sortino ratioReturn per unit of downside risk | -0.77 | ||
| Omega ratioGain probability vs. loss probability | 1.21 | 1.30 | -0.09 |
| Calmar ratioReturn relative to maximum drawdown | 2.03 | 3.27 | -1.24 |
| Martin ratioReturn relative to average drawdown | 6.88 | 12.35 | -5.46 |
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Drawdowns
VIEIX vs. BSMIX - Drawdown Comparison
The maximum VIEIX drawdown since its inception was -58.03%, which is greater than BSMIX's maximum drawdown of -41.32%. Use the drawdown chart below to compare losses from any high point for VIEIX and BSMIX.
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Drawdown Indicators
| VIEIX | BSMIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -58.03% | -41.32% | -16.71% |
Max Drawdown (1Y)Largest decline over 1 year | -10.25% | -9.39% | -0.86% |
Max Drawdown (3Y)Largest decline over 3 years | -26.84% | -25.49% | -1.35% |
Max Drawdown (5Y)Largest decline over 5 years | -36.32% | -28.33% | -7.99% |
Max Drawdown (10Y)Largest decline over 10 years | -41.62% | -41.32% | -0.30% |
Current DrawdownCurrent decline from peak | -4.13% | -2.60% | -1.53% |
Average DrawdownAverage peak-to-trough decline | -13.77% | -7.32% | -6.45% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.02% | 2.49% | +0.53% |
Volatility
VIEIX vs. BSMIX - Volatility Comparison
Vanguard Extended Market Index Fund Institutional Shares (VIEIX) has a higher volatility of 3.88% compared to iShares Russell Small/Mid-Cap Index Fund (BSMIX) at 3.46%. This indicates that VIEIX's price experiences larger fluctuations and is considered to be riskier than BSMIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| VIEIX | BSMIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 3.88% | 3.46% | +0.42% |
Volatility (6M)Calculated over the trailing 6-month period | 13.31% | 13.43% | -0.12% |
Volatility (1Y)Calculated over the trailing 1-year period | 17.81% | 17.73% | +0.08% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 22.40% | 21.20% | +1.20% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 22.34% | 21.69% | +0.65% |
VIEIX vs. BSMIX - Expense Ratio Comparison
VIEIX has a 0.04% expense ratio, which is lower than BSMIX's 0.12% 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%.
Dividends
VIEIX vs. BSMIX - Dividend Comparison
VIEIX's dividend yield for the trailing twelve months is around 1.04%, less than BSMIX's 2.48% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BSMIX iShares Russell Small/Mid-Cap Index Fund | 2.48% | 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 | 1.04% | 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, VIEIX and BSMIX 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.
VIEIX has higher volatility (3.88%) compared to BSMIX (3.46%). In terms of maximum drawdown, VIEIX dropped -58.03% vs BSMIX's -41.32%.
BSMIX currently has the higher Sharpe Ratio (1.74 vs 1.17), 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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