BBTBX vs. IWR
BBTBX (Bridge Builder Core Bond Fund) and IWR (iShares Russell Midcap ETF) are both funds - BBTBX is a Intermediate Core Bond fund managed by Bridge Builder, while IWR is a Mid Cap Growth Equities fund tracking the Russell Midcap Index. Over the past 10 years, BBTBX returned 1.79%/yr vs 12.41%/yr for IWR. At a correlation of -0.05, they often move in opposite directions. BBTBX charges 0.13%/yr vs 0.19%/yr for IWR.
Performance
BBTBX vs. IWR - Performance Comparison
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Returns By Period
In the year-to-date period, BBTBX achieves a 0.37% return, which is significantly lower than IWR's 14.90% return. Over the past 10 years, BBTBX has underperformed IWR with an annualized return of 1.79%, while IWR has yielded a comparatively higher 12.41% annualized return.
BBTBX
- 1D
- 0.45%
- 1M
- 0.94%
- YTD
- 0.37%
- 6M
- 0.63%
- 1Y
- 4.36%
- 3Y*
- 4.33%
- 5Y*
- 0.22%
- 10Y*
- 1.79%
IWR
- 1D
- 1.35%
- 1M
- 3.20%
- YTD
- 14.90%
- 6M
- 13.08%
- 1Y
- 23.04%
- 3Y*
- 17.47%
- 5Y*
- 8.17%
- 10Y*
- 12.41%
BBTBX vs. IWR - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
BBTBX Bridge Builder Core Bond Fund | 0.37% | 7.82% | 1.89% | 5.41% | -13.49% | -1.12% | 8.54% | 9.15% | 0.13% | 4.14% |
IWR iShares Russell Midcap ETF | 14.90% | 10.37% | 15.21% | 17.05% | -17.48% | 22.44% | 16.93% | 30.23% | -9.10% | 18.25% |
Correlation
The correlation between BBTBX and IWR is 0.34, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.34 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.25 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.16 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.01 |
Correlation (All Time) Calculated using the full available price history since Oct 30, 2013 | -0.05 |
The correlation between BBTBX and IWR shifts across timeframes, from -0.05 (all time) to 0.34 (1 year), reflecting how their relationship changes across market environments.
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Return for Risk
BBTBX vs. IWR — Risk / Return Rank
BBTBX
IWR
BBTBX vs. IWR - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Bridge Builder Core Bond Fund (BBTBX) and iShares Russell Midcap ETF (IWR). 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.
| BBTBX | IWR | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.55 | ||
| Sortino ratioReturn per unit of downside risk | -0.72 | ||
| Omega ratioGain probability vs. loss probability | 1.20 | 1.29 | -0.09 |
| Calmar ratioReturn relative to maximum drawdown | 1.56 | 2.83 | -1.28 |
| Martin ratioReturn relative to average drawdown | 4.22 | 10.84 | -6.62 |
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Drawdowns
BBTBX vs. IWR - Drawdown Comparison
The maximum BBTBX drawdown since its inception was -18.54%, smaller than the maximum IWR drawdown of -58.78%. Use the drawdown chart below to compare losses from any high point for BBTBX and IWR.
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Drawdown Indicators
| BBTBX | IWR | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -18.54% | -58.78% | +40.24% |
Max Drawdown (1Y)Largest decline over 1 year | -2.97% | -8.17% | +5.20% |
Max Drawdown (3Y)Largest decline over 3 years | -6.32% | -21.09% | +14.77% |
Max Drawdown (5Y)Largest decline over 5 years | -18.54% | -26.18% | +7.64% |
Max Drawdown (10Y)Largest decline over 10 years | -18.54% | -40.59% | +22.05% |
Current DrawdownCurrent decline from peak | -1.17% | 0.00% | -1.17% |
Average DrawdownAverage peak-to-trough decline | -3.90% | -7.79% | +3.89% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.08% | 2.13% | -1.05% |
Volatility
BBTBX vs. IWR - Volatility Comparison
The current volatility for Bridge Builder Core Bond Fund (BBTBX) is 1.30%, while iShares Russell Midcap ETF (IWR) has a volatility of 4.67%. This indicates that BBTBX experiences smaller price fluctuations and is considered to be less risky than IWR based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| BBTBX | IWR | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.30% | 4.67% | -3.37% |
Volatility (6M)Calculated over the trailing 6-month period | 3.08% | 10.51% | -7.43% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.09% | 13.83% | -9.74% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.99% | 18.30% | -12.31% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.94% | 19.36% | -14.42% |
BBTBX vs. IWR - Expense Ratio Comparison
BBTBX has a 0.13% expense ratio, which is lower than IWR's 0.19% 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
BBTBX vs. IWR - Dividend Comparison
BBTBX's dividend yield for the trailing twelve months is around 4.06%, more than IWR's 1.15% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BBTBX Bridge Builder Core Bond Fund | 4.06% | 4.58% | 3.92% | 2.86% | 2.26% | 2.38% | 4.73% | 3.39% | 3.02% | 2.67% | 0.95% | 0.17% |
IWR iShares Russell Midcap ETF | 1.15% | 1.29% | 1.27% | 1.43% | 1.59% | 1.04% | 1.28% | 1.43% | 1.98% | 1.52% | 1.72% | 1.59% |
Frequently Asked Questions
BBTBX and IWR have a correlation of 0.34, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
IWR has higher volatility (4.67%) compared to BBTBX (1.30%). In terms of maximum drawdown, BBTBX dropped -18.54% vs IWR's -58.78%.
IWR currently has the higher Sharpe Ratio (1.68 vs 1.13), 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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