MBB vs. JMTG
MBB (iShares MBS Bond ETF) and JMTG (JPMorgan Mortgage-Backed Securities ETF) are both Mortgage Backed Securities funds. MBB is passively managed, while JMTG is actively managed. Their correlation of 0.92 suggests significant overlap in exposure. MBB charges 0.06%/yr vs 0.24%/yr for JMTG.
Performance
MBB vs. JMTG - Performance Comparison
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Returns By Period
In the year-to-date period, MBB achieves a 0.68% return, which is significantly higher than JMTG's 0.53% return.
MBB
- 1D
- 0.11%
- 1M
- 0.25%
- YTD
- 0.68%
- 6M
- 1.10%
- 1Y
- 6.17%
- 3Y*
- 4.42%
- 5Y*
- 0.36%
- 10Y*
- 1.31%
JMTG
- 1D
- 0.08%
- 1M
- -0.08%
- YTD
- 0.53%
- 6M
- 0.81%
- 1Y
- —
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
MBB vs. JMTG - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
MBB iShares MBS Bond ETF | 0.68% | 3.98% |
JMTG JPMorgan Mortgage-Backed Securities ETF | 0.53% | 3.90% |
Correlation
The correlation between MBB and JMTG is 0.92, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.
| Correlation | |
|---|---|
Correlation (All Time) Calculated using the full available price history since Jul 1, 2025 | 0.92 |
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Return for Risk
MBB vs. JMTG — Risk / Return Rank
MBB
JMTG
MBB vs. JMTG - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares MBS Bond ETF (MBB) and JPMorgan Mortgage-Backed Securities ETF (JMTG). 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.
| MBB | JMTG | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | — | — | |
| Sortino ratioReturn per unit of downside risk | — | — | |
| Omega ratioGain probability vs. loss probability | 1.25 | — | — |
| Calmar ratioReturn relative to maximum drawdown | 2.10 | — | — |
| Martin ratioReturn relative to average drawdown | 6.96 | — | — |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| MBB | JMTG | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.39 | — | — |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.05 | — | — |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.25 | — | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.59 | 1.31 | -0.73 |
Drawdowns
MBB vs. JMTG - Drawdown Comparison
The maximum MBB drawdown since its inception was -17.64%, which is greater than JMTG's maximum drawdown of -2.78%. Use the drawdown chart below to compare losses from any high point for MBB and JMTG.
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Drawdown Indicators
| MBB | JMTG | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -17.64% | -2.78% | -14.86% |
Max Drawdown (1Y)Largest decline over 1 year | -2.94% | — | — |
Max Drawdown (3Y)Largest decline over 3 years | -7.68% | — | — |
Max Drawdown (5Y)Largest decline over 5 years | -17.19% | — | — |
Max Drawdown (10Y)Largest decline over 10 years | -17.64% | — | — |
Current DrawdownCurrent decline from peak | -1.42% | -1.72% | +0.30% |
Average DrawdownAverage peak-to-trough decline | -2.35% | -0.67% | -1.68% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.89% | — | — |
Volatility
MBB vs. JMTG - Volatility Comparison
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Volatility by Period
| MBB | JMTG | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.58% | — | — |
Volatility (6M)Calculated over the trailing 6-month period | 3.23% | — | — |
Volatility (1Y)Calculated over the trailing 1-year period | 4.51% | 3.67% | +0.84% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.81% | 3.67% | +3.14% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.31% | 3.67% | +1.64% |
MBB vs. JMTG - Expense Ratio Comparison
MBB has a 0.06% expense ratio, which is lower than JMTG's 0.24% 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
MBB vs. JMTG - Dividend Comparison
MBB's dividend yield for the trailing twelve months is around 4.27%, more than JMTG's 3.91% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
JMTG JPMorgan Mortgage-Backed Securities ETF | 3.91% | 2.10% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
MBB iShares MBS Bond ETF | 4.27% | 4.21% | 3.94% | 3.40% | 2.31% | 1.05% | 2.10% | 2.77% | 2.64% | 2.23% | 2.58% | 2.66% |
Frequently Asked Questions
With a correlation of 0.92, MBB and JMTG 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.
On fees, MBB is cheaper at 0.06% per year. The better choice depends on whether you care most about return, fees, risk, or income.
MBB is cheaper with a 0.06% expense ratio, compared with 0.24% for JMTG.
MBB has the higher dividend yield at 4.27%, compared with 3.91% for JMTG.
They also come from different issuers: iShares and JPMorgan. Their fees differ too: 0.06% for MBB and 0.24% for JMTG.
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