PMBS vs. GNMA
Compare and contrast key facts about PIMCO Mortgage-Backed Securities Active Exchange-Traded Fund (PMBS) and iShares GNMA Bond ETF (GNMA).
PMBS and GNMA are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. PMBS is an actively managed fund by PIMCO. It was launched on Jul 31, 1997. 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
PMBS vs. GNMA - Performance Comparison
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PMBS vs. GNMA - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | |
|---|---|---|---|
PMBS PIMCO Mortgage-Backed Securities Active Exchange-Traded Fund | 0.72% | 8.92% | -2.75% |
GNMA iShares GNMA Bond ETF | 0.45% | 8.25% | -2.66% |
Returns By Period
In the year-to-date period, PMBS achieves a 0.72% return, which is significantly higher than GNMA's 0.45% return.
PMBS
- 1D
- 0.11%
- 1M
- -1.31%
- YTD
- 0.72%
- 6M
- 2.27%
- 1Y
- 5.95%
- 3Y*
- —
- 5Y*
- —
- 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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PMBS vs. GNMA - Expense Ratio Comparison
PMBS has a 0.71% expense ratio, which is higher than GNMA's 0.15% expense ratio.
Return for Risk
PMBS vs. GNMA — Risk / Return Rank
PMBS
GNMA
PMBS vs. GNMA - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for PIMCO Mortgage-Backed Securities Active Exchange-Traded Fund (PMBS) 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.
| PMBS | GNMA | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.26 | 1.12 | +0.13 |
Sortino ratioReturn per unit of downside risk | 1.79 | 1.63 | +0.15 |
Omega ratioGain probability vs. loss probability | 1.23 | 1.20 | +0.02 |
Calmar ratioReturn relative to maximum drawdown | 2.08 | 1.90 | +0.18 |
Martin ratioReturn relative to average drawdown | 6.01 | 5.64 | +0.37 |
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
| PMBS | GNMA | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.26 | 1.12 | +0.13 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | — | 0.07 | — |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | — | 0.25 | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.89 | 0.25 | +0.64 |
Correlation
The correlation between PMBS and GNMA is 0.86, 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
PMBS vs. GNMA - Dividend Comparison
PMBS's dividend yield for the trailing twelve months is around 4.99%, more than GNMA's 4.21% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
PMBS PIMCO Mortgage-Backed Securities Active Exchange-Traded Fund | 4.99% | 4.73% | 1.59% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 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
PMBS vs. GNMA - Drawdown Comparison
The maximum PMBS drawdown since its inception was -4.35%, smaller than the maximum GNMA drawdown of -17.09%. Use the drawdown chart below to compare losses from any high point for PMBS and GNMA.
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Drawdown Indicators
| PMBS | GNMA | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -4.35% | -17.09% | +12.74% |
Max Drawdown (1Y)Largest decline over 1 year | -3.04% | -2.93% | -0.11% |
Max Drawdown (5Y)Largest decline over 5 years | — | -16.02% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -17.09% | — |
Current DrawdownCurrent decline from peak | -1.73% | -1.52% | -0.21% |
Average DrawdownAverage peak-to-trough decline | -1.11% | -3.69% | +2.58% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.05% | 0.99% | +0.06% |
Volatility
PMBS vs. GNMA - Volatility Comparison
PIMCO Mortgage-Backed Securities Active Exchange-Traded Fund (PMBS) has a higher volatility of 1.95% compared to iShares GNMA Bond ETF (GNMA) at 1.79%. This indicates that PMBS'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
| PMBS | GNMA | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.95% | 1.79% | +0.16% |
Volatility (6M)Calculated over the trailing 6-month period | 2.87% | 2.76% | +0.11% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.77% | 4.78% | -0.01% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 4.93% | 6.56% | -1.63% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.93% | 5.11% | -0.18% |