BBTBX vs. MCBDX
BBTBX (Bridge Builder Core Bond Fund) and MCBDX (MassMutual Core Bond Fund) are both Intermediate Core Bond funds. Over the past 10 years, BBTBX returned 1.80%/yr vs 5.38%/yr for MCBDX. Their correlation of 0.91 suggests significant overlap in exposure. BBTBX charges 0.13%/yr vs 0.52%/yr for MCBDX.
Performance
BBTBX vs. MCBDX - Performance Comparison
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Returns By Period
In the year-to-date period, BBTBX achieves a 0.14% return, which is significantly lower than MCBDX's 0.96% return. Over the past 10 years, BBTBX has underperformed MCBDX with an annualized return of 1.80%, while MCBDX has yielded a comparatively higher 5.38% annualized return.
BBTBX
- 1D
- 0.33%
- 1M
- 0.94%
- YTD
- 0.14%
- 6M
- 0.63%
- 1Y
- 4.82%
- 3Y*
- 4.29%
- 5Y*
- 0.08%
- 10Y*
- 1.80%
MCBDX
- 1D
- 0.22%
- 1M
- 1.01%
- YTD
- 0.96%
- 6M
- 1.46%
- 1Y
- 6.17%
- 3Y*
- 4.86%
- 5Y*
- 6.56%
- 10Y*
- 5.38%
BBTBX vs. MCBDX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
BBTBX Bridge Builder Core Bond Fund | 0.14% | 7.82% | 1.89% | 5.41% | -13.49% | -1.12% | 8.54% | 9.15% | 0.13% | 4.14% |
MCBDX MassMutual Core Bond Fund | 0.96% | 8.03% | 1.13% | 6.64% | -15.29% | 38.26% | 8.42% | 9.62% | -0.48% | 4.60% |
Correlation
The correlation between BBTBX and MCBDX is 0.93, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.93 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.93 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.93 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.91 |
Correlation (All Time) Calculated using the full available price history since Oct 30, 2013 | 0.91 |
The correlation between BBTBX and MCBDX has been stable across timeframes, ranging from 0.91 to 0.93 - a consistent structural relationship.
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Return for Risk
BBTBX vs. MCBDX — Risk / Return Rank
BBTBX
MCBDX
BBTBX vs. MCBDX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Bridge Builder Core Bond Fund (BBTBX) and MassMutual Core Bond Fund (MCBDX). 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 | MCBDX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.40 | ||
| Sortino ratioReturn per unit of downside risk | -0.67 | ||
| Omega ratioGain probability vs. loss probability | 1.22 | 1.30 | -0.08 |
| Calmar ratioReturn relative to maximum drawdown | 1.68 | 2.16 | -0.48 |
| Martin ratioReturn relative to average drawdown | 4.60 | 7.06 | -2.45 |
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Drawdowns
BBTBX vs. MCBDX - Drawdown Comparison
The maximum BBTBX drawdown since its inception was -18.54%, smaller than the maximum MCBDX drawdown of -22.01%. Use the drawdown chart below to compare losses from any high point for BBTBX and MCBDX.
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Drawdown Indicators
| BBTBX | MCBDX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -18.54% | -22.01% | +3.47% |
Max Drawdown (1Y)Largest decline over 1 year | -2.97% | -2.87% | -0.10% |
Max Drawdown (3Y)Largest decline over 3 years | -6.32% | -5.34% | -0.98% |
Max Drawdown (5Y)Largest decline over 5 years | -18.54% | -22.01% | +3.47% |
Max Drawdown (10Y)Largest decline over 10 years | -18.54% | -22.01% | +3.47% |
Current DrawdownCurrent decline from peak | -1.39% | -4.04% | +2.65% |
Average DrawdownAverage peak-to-trough decline | -3.90% | -3.53% | -0.37% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.07% | 0.88% | +0.19% |
Volatility
BBTBX vs. MCBDX - Volatility Comparison
Bridge Builder Core Bond Fund (BBTBX) has a higher volatility of 1.24% compared to MassMutual Core Bond Fund (MCBDX) at 1.10%. This indicates that BBTBX's price experiences larger fluctuations and is considered to be riskier than MCBDX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| BBTBX | MCBDX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.24% | 1.10% | +0.14% |
Volatility (6M)Calculated over the trailing 6-month period | 3.04% | 2.82% | +0.22% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.06% | 3.80% | +0.26% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.98% | 20.10% | -14.12% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.94% | 14.44% | -9.50% |
BBTBX vs. MCBDX - Expense Ratio Comparison
BBTBX has a 0.13% expense ratio, which is lower than MCBDX's 0.52% expense ratio.
Dividends
BBTBX vs. MCBDX - Dividend Comparison
BBTBX's dividend yield for the trailing twelve months is around 4.07%, less than MCBDX's 4.47% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BBTBX Bridge Builder Core Bond Fund | 4.07% | 4.58% | 3.92% | 2.86% | 2.26% | 2.38% | 4.73% | 3.39% | 3.02% | 2.67% | 0.95% | 0.17% |
MCBDX MassMutual Core Bond Fund | 4.47% | 4.50% | 1.93% | 4.62% | 3.83% | 31.12% | 5.98% | 3.35% | 3.32% | 2.96% | 3.29% | 1.43% |
Frequently Asked Questions
With a correlation of 0.93, BBTBX and MCBDX 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.
BBTBX has higher volatility (1.24%) compared to MCBDX (1.10%). In terms of maximum drawdown, BBTBX dropped -18.54% vs MCBDX's -22.01%.
MCBDX currently has the higher Sharpe Ratio (1.63 vs 1.23), 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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