BSMIX vs. TISBX
BSMIX (iShares Russell Small/Mid-Cap Index Fund) and TISBX (TIAA-CREF Small-Cap Blend Index Fund) are both Small Cap Blend Equities funds. Over the past 10 years, BSMIX returned 12.24%/yr vs 11.65%/yr for TISBX. With a 0.98 correlation, they move nearly in lockstep. BSMIX charges 0.12%/yr vs 0.05%/yr for TISBX.
Performance
BSMIX vs. TISBX - Performance Comparison
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Returns By Period
The year-to-date returns for both investments are quite close, with BSMIX having a 20.43% return and TISBX slightly higher at 21.01%. Both investments have delivered pretty close results over the past 10 years, with BSMIX having a 12.24% annualized return and TISBX not far behind at 11.65%.
BSMIX
- 1D
- 0.41%
- 1M
- 1.85%
- YTD
- 20.43%
- 6M
- 17.73%
- 1Y
- 36.62%
- 3Y*
- 19.16%
- 5Y*
- 7.63%
- 10Y*
- 12.24%
TISBX
- 1D
- 0.39%
- 1M
- 2.39%
- YTD
- 21.01%
- 6M
- 17.96%
- 1Y
- 41.52%
- 3Y*
- 19.57%
- 5Y*
- 6.57%
- 10Y*
- 11.65%
BSMIX vs. TISBX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
BSMIX iShares Russell Small/Mid-Cap Index Fund | 20.43% | 11.92% | 12.04% | 17.15% | -18.39% | 18.00% | 20.28% | 27.62% | -10.22% | 16.75% |
TISBX TIAA-CREF Small-Cap Blend Index Fund | 21.01% | 12.72% | 11.60% | 17.07% | -20.31% | 14.85% | 20.14% | 25.61% | -10.99% | 13.14% |
Correlation
The correlation between BSMIX and TISBX is 0.98 - 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 | 0.98 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.98 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.98 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.98 |
Correlation (All Time) Calculated using the full available price history since Jan 4, 2016 | 0.98 |
The correlation between BSMIX and TISBX has been stable across timeframes, ranging from 0.98 to 0.98 - a consistent structural relationship.
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Return for Risk
BSMIX vs. TISBX — Risk / Return Rank
BSMIX
TISBX
BSMIX vs. TISBX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Russell Small/Mid-Cap Index Fund (BSMIX) and TIAA-CREF Small-Cap Blend Index Fund (TISBX). 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.
| BSMIX | TISBX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.06 | ||
| Sortino ratioReturn per unit of downside risk | -0.04 | ||
| Omega ratioGain probability vs. loss probability | 1.33 | 1.33 | 0.00 |
| Calmar ratioReturn relative to maximum drawdown | 3.77 | 3.67 | +0.09 |
| Martin ratioReturn relative to average drawdown | 14.22 | 12.98 | +1.24 |
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Drawdowns
BSMIX vs. TISBX - Drawdown Comparison
The maximum BSMIX drawdown since its inception was -41.32%, smaller than the maximum TISBX drawdown of -56.50%. Use the drawdown chart below to compare losses from any high point for BSMIX and TISBX.
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Drawdown Indicators
| BSMIX | TISBX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -41.32% | -56.50% | +15.18% |
Max Drawdown (1Y)Largest decline over 1 year | -9.39% | -10.95% | +1.56% |
Max Drawdown (3Y)Largest decline over 3 years | -25.49% | -27.44% | +1.95% |
Max Drawdown (5Y)Largest decline over 5 years | -28.33% | -31.89% | +3.56% |
Max Drawdown (10Y)Largest decline over 10 years | -41.32% | -41.69% | +0.37% |
Current DrawdownCurrent decline from peak | -1.17% | -0.57% | -0.60% |
Average DrawdownAverage peak-to-trough decline | -7.38% | -9.66% | +2.28% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.48% | 3.09% | -0.61% |
Volatility
BSMIX vs. TISBX - Volatility Comparison
iShares Russell Small/Mid-Cap Index Fund (BSMIX) and TIAA-CREF Small-Cap Blend Index Fund (TISBX) have volatilities of 6.23% and 6.44%, 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
| BSMIX | TISBX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 6.23% | 6.44% | -0.21% |
Volatility (6M)Calculated over the trailing 6-month period | 13.56% | 14.33% | -0.77% |
Volatility (1Y)Calculated over the trailing 1-year period | 17.89% | 19.73% | -1.84% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 21.29% | 22.63% | -1.34% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 21.73% | 23.45% | -1.72% |
BSMIX vs. TISBX - Expense Ratio Comparison
BSMIX has a 0.12% expense ratio, which is higher than TISBX'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. TISBX - Dividend Comparison
BSMIX's dividend yield for the trailing twelve months is around 2.40%, less than TISBX's 3.41% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BSMIX iShares Russell Small/Mid-Cap Index Fund | 2.40% | 2.90% | 2.04% | 1.37% | 4.94% | 4.77% | 4.42% | 2.83% | 4.33% | 2.83% | 1.45% | 0.00% |
TISBX TIAA-CREF Small-Cap Blend Index Fund | 3.41% | 4.12% | 6.82% | 3.09% | 1.97% | 8.96% | 2.65% | 5.16% | 9.29% | 4.49% | 4.03% | 4.77% |
Frequently Asked Questions
With a correlation of 0.98, BSMIX and TISBX 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.
TISBX has higher volatility (6.44%) compared to BSMIX (6.23%). In terms of maximum drawdown, BSMIX dropped -41.32% vs TISBX's -56.50%.
TISBX currently has the higher Sharpe Ratio (2.04 vs 1.98), 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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