GNMA vs. JMBS
Compare and contrast key facts about iShares GNMA Bond ETF (GNMA) and Janus Henderson Mortgage-Backed Securities ETF (JMBS).
GNMA and JMBS are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. 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. JMBS is an actively managed fund by Janus Henderson. It was launched on Sep 12, 2018.
Performance
GNMA vs. JMBS - Performance Comparison
Loading graphics...
GNMA vs. JMBS - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|---|---|---|---|
GNMA iShares GNMA Bond ETF | 0.45% | 8.25% | 1.07% | 5.34% | -10.83% | -1.86% | 3.51% | 5.85% | 1.81% |
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% |
Returns By Period
In the year-to-date period, GNMA achieves a 0.45% return, which is significantly higher than JMBS's 0.26% return.
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%
JMBS
- 1D
- 0.07%
- 1M
- -1.52%
- YTD
- 0.26%
- 6M
- 1.80%
- 1Y
- 5.30%
- 3Y*
- 4.25%
- 5Y*
- 0.76%
- 10Y*
- —
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
GNMA vs. JMBS - Expense Ratio Comparison
GNMA has a 0.15% expense ratio, which is lower than JMBS's 0.32% expense ratio.
Return for Risk
GNMA vs. JMBS — Risk / Return Rank
GNMA
JMBS
GNMA vs. JMBS - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares GNMA Bond ETF (GNMA) and Janus Henderson Mortgage-Backed Securities ETF (JMBS). 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.
| GNMA | JMBS | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.12 | 1.10 | +0.02 |
Sortino ratioReturn per unit of downside risk | 1.63 | 1.57 | +0.07 |
Omega ratioGain probability vs. loss probability | 1.20 | 1.20 | 0.00 |
Calmar ratioReturn relative to maximum drawdown | 1.90 | 1.91 | 0.00 |
Martin ratioReturn relative to average drawdown | 5.64 | 5.19 | +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. | |||
Loading graphics...
Sharpe Ratios by Period
| GNMA | JMBS | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.12 | 1.10 | +0.02 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.07 | 0.12 | -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 | 0.25 | 0.42 | -0.17 |
Correlation
The correlation between GNMA and JMBS 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
GNMA vs. JMBS - Dividend Comparison
GNMA's dividend yield for the trailing twelve months is around 4.21%, less than JMBS's 5.16% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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% |
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% |
Drawdowns
GNMA vs. JMBS - Drawdown Comparison
The maximum GNMA drawdown since its inception was -17.09%, roughly equal to the maximum JMBS drawdown of -16.68%. Use the drawdown chart below to compare losses from any high point for GNMA and JMBS.
Loading graphics...
Drawdown Indicators
| GNMA | JMBS | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -17.09% | -16.68% | -0.41% |
Max Drawdown (1Y)Largest decline over 1 year | -2.93% | -3.01% | +0.08% |
Max Drawdown (5Y)Largest decline over 5 years | -16.02% | -16.68% | +0.66% |
Max Drawdown (10Y)Largest decline over 10 years | -17.09% | — | — |
Current DrawdownCurrent decline from peak | -1.52% | -1.90% | +0.38% |
Average DrawdownAverage peak-to-trough decline | -3.69% | -3.95% | +0.26% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.99% | 1.11% | -0.12% |
Volatility
GNMA vs. JMBS - Volatility Comparison
The current volatility for iShares GNMA Bond ETF (GNMA) is 1.79%, while Janus Henderson Mortgage-Backed Securities ETF (JMBS) has a volatility of 1.96%. This indicates that GNMA experiences smaller price fluctuations and is considered to be less risky than JMBS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading graphics...
Volatility by Period
| GNMA | JMBS | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.79% | 1.96% | -0.17% |
Volatility (6M)Calculated over the trailing 6-month period | 2.76% | 2.86% | -0.10% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.78% | 4.85% | -0.07% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.56% | 6.43% | +0.13% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.11% | 5.54% | -0.43% |