MSTDX vs. DBLSX
MSTDX (MassMutual Short Duration Bond Fund) and DBLSX (DoubleLine Low Duration Bond Fund) are both Short-Term Bond funds. Over the past 10 years, MSTDX returned 2.04%/yr vs 2.86%/yr for DBLSX. At a 0.43 correlation, their price movements are largely independent. MSTDX charges 0.51%/yr vs 0.41%/yr for DBLSX.
Performance
MSTDX vs. DBLSX - Performance Comparison
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Returns By Period
In the year-to-date period, MSTDX achieves a 0.73% return, which is significantly lower than DBLSX's 1.17% return. Over the past 10 years, MSTDX has underperformed DBLSX with an annualized return of 2.04%, while DBLSX has yielded a comparatively higher 2.86% annualized return.
MSTDX
- 1D
- 0.11%
- 1M
- 0.33%
- YTD
- 0.73%
- 6M
- 1.24%
- 1Y
- 4.18%
- 3Y*
- 5.66%
- 5Y*
- 1.32%
- 10Y*
- 2.04%
DBLSX
- 1D
- 0.10%
- 1M
- 0.35%
- YTD
- 1.17%
- 6M
- 1.27%
- 1Y
- 4.19%
- 3Y*
- 5.48%
- 5Y*
- 3.19%
- 10Y*
- 2.86%
MSTDX vs. DBLSX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
MSTDX MassMutual Short Duration Bond Fund | 0.73% | 6.18% | 6.38% | 5.88% | -11.19% | 1.79% | 2.29% | 4.49% | 1.68% | 2.61% |
DBLSX DoubleLine Low Duration Bond Fund | 1.17% | 5.74% | 5.32% | 6.76% | -2.69% | 0.70% | 2.02% | 4.73% | 1.40% | 2.65% |
Correlation
The correlation between MSTDX and DBLSX is 0.58, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.58 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.64 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.54 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.48 |
Correlation (All Time) Calculated using the full available price history since Oct 6, 2011 | 0.43 |
The correlation between MSTDX and DBLSX shifts across timeframes, from 0.43 (all time) to 0.64 (3 years), reflecting how their relationship changes across market environments.
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Return for Risk
MSTDX vs. DBLSX — Risk / Return Rank
MSTDX
DBLSX
MSTDX vs. DBLSX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for MassMutual Short Duration Bond Fund (MSTDX) and DoubleLine Low Duration Bond Fund (DBLSX). 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.
| MSTDX | DBLSX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.25 | ||
| Sortino ratioReturn per unit of downside risk | -1.51 | ||
| Omega ratioGain probability vs. loss probability | 1.62 | 2.01 | -0.39 |
| Calmar ratioReturn relative to maximum drawdown | 4.05 | 5.97 | -1.92 |
| Martin ratioReturn relative to average drawdown | 16.84 | 27.36 | -10.52 |
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Drawdowns
MSTDX vs. DBLSX - Drawdown Comparison
The maximum MSTDX drawdown since its inception was -13.31%, smaller than the maximum DBLSX drawdown of -57.22%. Use the drawdown chart below to compare losses from any high point for MSTDX and DBLSX.
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Drawdown Indicators
| MSTDX | DBLSX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -13.31% | -57.22% | +43.91% |
Max Drawdown (1Y)Largest decline over 1 year | -1.06% | -0.72% | -0.34% |
Max Drawdown (3Y)Largest decline over 3 years | -1.06% | -0.72% | -0.34% |
Max Drawdown (5Y)Largest decline over 5 years | -13.31% | -4.71% | -8.60% |
Max Drawdown (10Y)Largest decline over 10 years | -13.31% | -57.22% | +43.91% |
Current DrawdownCurrent decline from peak | -0.21% | -44.94% | +44.73% |
Average DrawdownAverage peak-to-trough decline | -1.43% | -31.55% | +30.12% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.26% | 0.16% | +0.10% |
Volatility
MSTDX vs. DBLSX - Volatility Comparison
MassMutual Short Duration Bond Fund (MSTDX) has a higher volatility of 0.63% compared to DoubleLine Low Duration Bond Fund (DBLSX) at 0.36%. This indicates that MSTDX's price experiences larger fluctuations and is considered to be riskier than DBLSX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| MSTDX | DBLSX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.63% | 0.36% | +0.27% |
Volatility (6M)Calculated over the trailing 6-month period | 1.40% | 0.92% | +0.48% |
Volatility (1Y)Calculated over the trailing 1-year period | 1.83% | 1.20% | +0.63% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 2.34% | 1.40% | +0.94% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 2.06% | 63.96% | -61.90% |
MSTDX vs. DBLSX - Expense Ratio Comparison
MSTDX has a 0.51% expense ratio, which is higher than DBLSX's 0.41% expense ratio.
Dividends
MSTDX vs. DBLSX - Dividend Comparison
MSTDX's dividend yield for the trailing twelve months is around 4.44%, less than DBLSX's 4.54% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
DBLSX DoubleLine Low Duration Bond Fund | 4.54% | 4.64% | 5.09% | 4.49% | 2.50% | 1.72% | 2.37% | 3.21% | 2.92% | 2.42% | 2.52% | 2.47% |
MSTDX MassMutual Short Duration Bond Fund | 4.44% | 4.36% | 2.63% | 2.48% | 1.46% | 1.90% | 4.44% | 3.35% | 3.82% | 2.51% | 2.36% | 2.57% |
Frequently Asked Questions
MSTDX and DBLSX have a correlation of 0.58, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
MSTDX has higher volatility (0.63%) compared to DBLSX (0.36%). In terms of maximum drawdown, MSTDX dropped -13.31% vs DBLSX's -57.22%.
DBLSX currently has the higher Sharpe Ratio (3.60 vs 2.35), 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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