MBDFX vs. GWMIX
MBDFX (AMG GW&K Core Bond ESG Fund) and GWMIX (AMG GW&K Municipal Bond Fund) are both mutual funds - MBDFX is a Intermediate Core Bond fund managed by AMG, while GWMIX is a Municipal Bonds fund managed by AMG. Over the past 10 years, MBDFX returned 0.99%/yr vs 2.04%/yr for GWMIX. Their 0.49 correlation means their historical movements had little consistent relationship. MBDFX charges 0.56%/yr vs 0.39%/yr for GWMIX.
Performance
MBDFX vs. GWMIX - Performance Comparison
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Returns By Period
In the year-to-date period, MBDFX achieves a -1.16% return, which is significantly lower than GWMIX's -0.64% return. Over the past 10 years, MBDFX has underperformed GWMIX with an annualized return of 0.99%, while GWMIX has yielded a comparatively higher 2.04% annualized return.
MBDFX
- 1D
- 0.11%
- 1M
- -1.00%
- 6M
- -1.47%
- YTD
- -1.16%
- 1Y
- 1.27%
- 3Y*
- 3.52%
- 5Y*
- -1.04%
- 10Y*
- 0.99%
- ALL TIME*
- 2.20%
GWMIX
- 1D
- -0.18%
- 1M
- -1.89%
- 6M
- -1.91%
- YTD
- -0.64%
- 1Y
- 4.47%
- 3Y*
- 2.77%
- 5Y*
- 1.17%
- 10Y*
- 2.04%
- ALL TIME*
- 3.39%
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 |
MBDFX vs. GWMIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
MBDFX AMG GW&K Core Bond ESG Fund | -1.16% | 7.29% | 1.24% | 5.73% | -13.85% | -3.34% | 7.33% | 9.70% | -1.11% | 3.88% |
GWMIX AMG GW&K Municipal Bond Fund | -0.64% | 5.52% | 0.04% | 6.04% | -7.45% | 4.19% | 4.70% | 7.91% | 0.87% | 4.80% |
Correlation
The correlation between MBDFX and GWMIX is 0.58, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.58 |
Correlation (3Y) Balances recent behavior with more history. | 0.60 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.54 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.51 |
Correlation (All Time) Calculated using the full available price history since Jan 4, 2010 | 0.49 |
The correlation between MBDFX and GWMIX shifts across timeframes, from 0.49 (all time) to 0.60 (3 years), reflecting how their relationship changes across market environments.
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Return for Risk
MBDFX vs. GWMIX — Risk / Return Rank
MBDFX
GWMIX
MBDFX vs. GWMIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for AMG GW&K Core Bond ESG Fund (MBDFX) and AMG GW&K Municipal Bond Fund (GWMIX). 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.
| MBDFX | GWMIX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.25 | ||
| Sortino ratioReturn per unit of downside risk | -1.64 | ||
| Omega ratioGain probability vs. loss probability | 1.09 | 1.41 | -0.32 |
| Calmar ratioReturn relative to maximum drawdown | 0.64 | 1.33 | -0.69 |
| Martin ratioReturn relative to average drawdown | 1.45 | 3.51 | -2.06 |
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Drawdowns
MBDFX vs. GWMIX - Drawdown Comparison
The maximum MBDFX drawdown since its inception was -20.66%, which is greater than GWMIX's maximum drawdown of -12.27%. Use the drawdown chart below to compare losses from any high point for MBDFX and GWMIX.
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Drawdown Indicators
| MBDFX | GWMIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -20.66% | -12.27% | -8.39% |
Max Drawdown (1Y)Largest decline over 1 year | -3.25% | -3.89% | +0.64% |
Max Drawdown (3Y)Largest decline over 3 years | -5.74% | -5.18% | -0.56% |
Max Drawdown (5Y)Largest decline over 5 years | -20.47% | -12.27% | -8.20% |
Max Drawdown (10Y)Largest decline over 10 years | -20.66% | -12.27% | -8.39% |
Current DrawdownCurrent decline from peak | -5.57% | -3.21% | -2.36% |
Average DrawdownAverage peak-to-trough decline | -3.97% | -1.98% | -1.99% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.42% | 1.47% | -0.05% |
Volatility
MBDFX vs. GWMIX - Volatility Comparison
AMG GW&K Core Bond ESG Fund (MBDFX) has a higher volatility of 1.11% compared to AMG GW&K Municipal Bond Fund (GWMIX) at 1.04%. This indicates that MBDFX's price experiences larger fluctuations and is considered to be riskier than GWMIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| MBDFX | GWMIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.11% | 1.04% | +0.07% |
Volatility (6M)Calculated over the trailing 6-month period | 3.01% | 2.43% | +0.58% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.85% | 2.89% | +0.96% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.17% | 4.16% | +2.01% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.06% | 4.00% | +1.06% |
MBDFX vs. GWMIX - Expense Ratio Comparison
MBDFX has a 0.56% expense ratio, which is higher than GWMIX's 0.39% expense ratio.
Dividends
MBDFX vs. GWMIX - Dividend Comparison
MBDFX's dividend yield for the trailing twelve months is around 3.24%, more than GWMIX's 2.55% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
GWMIX AMG GW&K Municipal Bond Fund | 2.55% | 2.86% | 2.60% | 2.11% | 1.89% | 5.75% | 1.82% | 2.19% | 1.88% | 1.64% | 3.38% | 3.01% |
MBDFX AMG GW&K Core Bond ESG Fund | 3.24% | 3.66% | 3.50% | 2.92% | 2.16% | 2.35% | 1.84% | 2.40% | 2.30% | 2.10% | 2.06% | 4.17% |
Frequently Asked Questions
MBDFX and GWMIX 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.
MBDFX has higher volatility (1.11%) compared to GWMIX (1.04%). In terms of maximum drawdown, MBDFX dropped -20.66% vs GWMIX's -12.27%.
GWMIX currently has the higher Sharpe Ratio (1.79 vs 0.54), 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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