JMBS vs. GNMA
Compare and contrast key facts about Janus Henderson Mortgage-Backed Securities ETF (JMBS) and iShares GNMA Bond ETF (GNMA).
JMBS and GNMA are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. JMBS is an actively managed fund by Janus Henderson. It was launched on Sep 12, 2018. GNMA is a passively managed fund by iShares that tracks the performance of the Barclays Capital GNMA Index. It was launched on Feb 14, 2012.
Performance
JMBS vs. GNMA - Performance Comparison
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JMBS vs. GNMA - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|---|---|---|---|
JMBS Janus Henderson Mortgage-Backed Securities ETF | 0.26% | 8.82% | 1.53% | 5.66% | -11.40% | -0.32% | 5.80% | 7.11% | 1.53% |
GNMA iShares GNMA Bond ETF | 0.45% | 8.25% | 1.07% | 5.34% | -10.83% | -1.86% | 3.51% | 5.85% | 1.81% |
Returns By Period
In the year-to-date period, JMBS achieves a 0.26% return, which is significantly lower than GNMA's 0.45% return.
JMBS
- 1D
- 0.07%
- 1M
- -1.52%
- YTD
- 0.26%
- 6M
- 1.80%
- 1Y
- 5.30%
- 3Y*
- 4.25%
- 5Y*
- 0.76%
- 10Y*
- —
GNMA
- 1D
- 0.23%
- 1M
- -1.26%
- YTD
- 0.45%
- 6M
- 1.88%
- 1Y
- 5.35%
- 3Y*
- 4.05%
- 5Y*
- 0.45%
- 10Y*
- 1.27%
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JMBS vs. GNMA - Expense Ratio Comparison
JMBS has a 0.32% expense ratio, which is higher than GNMA's 0.15% expense ratio.
Return for Risk
JMBS vs. GNMA — Risk / Return Rank
JMBS
GNMA
JMBS vs. GNMA - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Janus Henderson Mortgage-Backed Securities ETF (JMBS) and iShares GNMA Bond ETF (GNMA). 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.
| JMBS | GNMA | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.10 | 1.12 | -0.02 |
Sortino ratioReturn per unit of downside risk | 1.57 | 1.63 | -0.07 |
Omega ratioGain probability vs. loss probability | 1.20 | 1.20 | 0.00 |
Calmar ratioReturn relative to maximum drawdown | 1.91 | 1.90 | 0.00 |
Martin ratioReturn relative to average drawdown | 5.19 | 5.64 | -0.45 |
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
| JMBS | GNMA | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.10 | 1.12 | -0.02 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.12 | 0.07 | +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 | 0.42 | 0.25 | +0.17 |
Correlation
The correlation between JMBS and GNMA is 0.79, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.
Dividends
JMBS vs. GNMA - Dividend Comparison
JMBS's dividend yield for the trailing twelve months is around 5.16%, more than GNMA's 4.21% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
JMBS Janus Henderson Mortgage-Backed Securities ETF | 5.16% | 5.03% | 5.53% | 4.38% | 2.73% | 1.16% | 2.92% | 3.63% | 0.89% | 0.00% | 0.00% | 0.00% |
GNMA iShares GNMA Bond ETF | 4.21% | 4.19% | 4.15% | 3.43% | 2.01% | 0.64% | 1.89% | 2.61% | 2.41% | 2.15% | 1.89% | 1.50% |
Drawdowns
JMBS vs. GNMA - Drawdown Comparison
The maximum JMBS drawdown since its inception was -16.68%, roughly equal to the maximum GNMA drawdown of -17.09%. Use the drawdown chart below to compare losses from any high point for JMBS and GNMA.
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Drawdown Indicators
| JMBS | GNMA | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -16.68% | -17.09% | +0.41% |
Max Drawdown (1Y)Largest decline over 1 year | -3.01% | -2.93% | -0.08% |
Max Drawdown (5Y)Largest decline over 5 years | -16.68% | -16.02% | -0.66% |
Max Drawdown (10Y)Largest decline over 10 years | — | -17.09% | — |
Current DrawdownCurrent decline from peak | -1.90% | -1.52% | -0.38% |
Average DrawdownAverage peak-to-trough decline | -3.95% | -3.69% | -0.26% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.11% | 0.99% | +0.12% |
Volatility
JMBS vs. GNMA - Volatility Comparison
Janus Henderson Mortgage-Backed Securities ETF (JMBS) has a higher volatility of 1.96% compared to iShares GNMA Bond ETF (GNMA) at 1.79%. This indicates that JMBS's price experiences larger fluctuations and is considered to be riskier than GNMA based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| JMBS | GNMA | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.96% | 1.79% | +0.17% |
Volatility (6M)Calculated over the trailing 6-month period | 2.86% | 2.76% | +0.10% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.85% | 4.78% | +0.07% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.43% | 6.56% | -0.13% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.54% | 5.11% | +0.43% |