MAMTX vs. BDMIX
MAMTX (Blackrock Strategic Municipal Opportunities Fund Of Blackrock Municipal Series Trust) and BDMIX (BlackRock Global Equity Market Neutral Fund Class I) are both mutual funds - MAMTX is a Municipal Bonds fund managed by BlackRock, while BDMIX is a Equity Market Neutral fund managed by BlackRock. Over the past 10 years, MAMTX returned 1.89%/yr vs 8.48%/yr for BDMIX. Their 0.01 correlation means their historical movements had little consistent relationship. MAMTX charges 0.55%/yr vs 1.34%/yr for BDMIX.
Performance
MAMTX vs. BDMIX - Performance Comparison
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Returns By Period
In the year-to-date period, MAMTX achieves a 1.12% return, which is significantly lower than BDMIX's 12.04% return. Over the past 10 years, MAMTX has underperformed BDMIX with an annualized return of 1.89%, while BDMIX has yielded a comparatively higher 8.48% annualized return.
MAMTX
- 1D
- -0.29%
- 1M
- -2.00%
- 6M
- 0.58%
- YTD
- 1.12%
- 1Y
- 5.95%
- 3Y*
- 4.16%
- 5Y*
- 0.22%
- 10Y*
- 1.89%
- ALL TIME*
- 4.27%
BDMIX
- 1D
- 1.13%
- 1M
- 1.65%
- 6M
- 10.90%
- YTD
- 12.04%
- 1Y
- 23.58%
- 3Y*
- 20.48%
- 5Y*
- 13.14%
- 10Y*
- 8.48%
- ALL TIME*
- 6.87%
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 |
MAMTX vs. BDMIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
MAMTX Blackrock Strategic Municipal Opportunities Fund Of Blackrock Municipal Series Trust | 1.12% | 3.97% | 3.90% | 4.89% | -12.11% | 5.84% | 0.58% | 6.81% | 1.27% | 8.05% |
BDMIX BlackRock Global Equity Market Neutral Fund Class I | 12.04% | 18.30% | 21.39% | 14.55% | 1.80% | 3.34% | 0.29% | -0.85% | 2.20% | 12.85% |
Correlation
The correlation between MAMTX and BDMIX is 0.03, meaning there was essentially no consistent relationship between their historical price movements. Each responded to its own set of market drivers.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.03 |
Correlation (3Y) Balances recent behavior with more history. | 0.03 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.03 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.02 |
Correlation (All Time) Calculated using the full available price history since Jan 2, 2013 | 0.01 |
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Return for Risk
MAMTX vs. BDMIX — Risk / Return Rank
MAMTX
BDMIX
MAMTX vs. BDMIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Blackrock Strategic Municipal Opportunities Fund Of Blackrock Municipal Series Trust (MAMTX) and BlackRock Global Equity Market Neutral Fund Class I (BDMIX). 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.
| MAMTX | BDMIX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.03 | ||
| Sortino ratioReturn per unit of downside risk | -1.23 | ||
| Omega ratioGain probability vs. loss probability | 1.52 | 1.61 | -0.09 |
| Calmar ratioReturn relative to maximum drawdown | 2.41 | 7.38 | -4.97 |
| Martin ratioReturn relative to average drawdown | 8.41 | 19.61 | -11.20 |
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Drawdowns
MAMTX vs. BDMIX - Drawdown Comparison
The maximum MAMTX drawdown since its inception was -16.83%, which is greater than BDMIX's maximum drawdown of -11.89%. Use the drawdown chart below to compare losses from any high point for MAMTX and BDMIX.
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Drawdown Indicators
| MAMTX | BDMIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -16.83% | -11.89% | -4.94% |
Max Drawdown (1Y)Largest decline over 1 year | -2.85% | -3.24% | +0.39% |
Max Drawdown (3Y)Largest decline over 3 years | -5.71% | -4.07% | -1.64% |
Max Drawdown (5Y)Largest decline over 5 years | -16.83% | -5.23% | -11.60% |
Max Drawdown (10Y)Largest decline over 10 years | -16.83% | -9.44% | -7.39% |
Current DrawdownCurrent decline from peak | -2.09% | -1.06% | -1.03% |
Average DrawdownAverage peak-to-trough decline | -2.05% | -2.67% | +0.62% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.82% | 1.22% | -0.40% |
Volatility
MAMTX vs. BDMIX - Volatility Comparison
The current volatility for Blackrock Strategic Municipal Opportunities Fund Of Blackrock Municipal Series Trust (MAMTX) is 0.91%, while BlackRock Global Equity Market Neutral Fund Class I (BDMIX) has a volatility of 2.53%. This indicates that MAMTX experiences smaller price fluctuations and is considered to be less risky than BDMIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| MAMTX | BDMIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.91% | 2.53% | -1.62% |
Volatility (6M)Calculated over the trailing 6-month period | 2.44% | 5.37% | -2.93% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.11% | 7.39% | -4.28% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 4.79% | 6.68% | -1.89% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.85% | 5.90% | -1.05% |
MAMTX vs. BDMIX - Expense Ratio Comparison
MAMTX has a 0.55% expense ratio, which is lower than BDMIX's 1.34% expense ratio.
Dividends
MAMTX vs. BDMIX - Dividend Comparison
MAMTX's dividend yield for the trailing twelve months is around 3.64%, less than BDMIX's 11.55% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BDMIX BlackRock Global Equity Market Neutral Fund Class I | 11.55% | 8.94% | 13.26% | 7.42% | 0.00% | 1.23% | 0.30% | 6.78% | 0.94% | 0.00% | 0.00% | 1.86% |
MAMTX Blackrock Strategic Municipal Opportunities Fund Of Blackrock Municipal Series Trust | 3.64% | 5.00% | 4.23% | 2.70% | 1.96% | 2.00% | 2.39% | 2.83% | 4.74% | 2.89% | 3.91% | 2.84% |
Frequently Asked Questions
MAMTX and BDMIX have a correlation of 0.03, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
BDMIX has higher volatility (2.53%) compared to MAMTX (0.91%). In terms of maximum drawdown, MAMTX dropped -16.83% vs BDMIX's -11.89%.
BDMIX currently has the higher Sharpe Ratio (3.24 vs 2.21), 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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