GNMA vs. MTBA
Compare and contrast key facts about iShares GNMA Bond ETF (GNMA) and Simplify MBS ETF (MTBA).
GNMA and MTBA 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. MTBA is an actively managed fund by Simplify. It was launched on Nov 6, 2023.
Performance
GNMA vs. MTBA - Performance Comparison
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GNMA vs. MTBA - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | |
|---|---|---|---|---|
GNMA iShares GNMA Bond ETF | 0.45% | 8.25% | 1.07% | 6.37% |
MTBA Simplify MBS ETF | -0.39% | 7.74% | 1.99% | 3.64% |
Returns By Period
In the year-to-date period, GNMA achieves a 0.45% return, which is significantly higher than MTBA's -0.39% 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%
MTBA
- 1D
- 0.04%
- 1M
- -1.47%
- YTD
- -0.39%
- 6M
- 1.12%
- 1Y
- 4.43%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
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GNMA vs. MTBA - Expense Ratio Comparison
Both GNMA and MTBA have an expense ratio of 0.15%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.
Return for Risk
GNMA vs. MTBA — Risk / Return Rank
GNMA
MTBA
GNMA vs. MTBA - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares GNMA Bond ETF (GNMA) and Simplify MBS ETF (MTBA). 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 | MTBA | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.12 | 1.34 | -0.22 |
Sortino ratioReturn per unit of downside risk | 1.63 | 1.85 | -0.21 |
Omega ratioGain probability vs. loss probability | 1.20 | 1.25 | -0.05 |
Calmar ratioReturn relative to maximum drawdown | 1.90 | 1.78 | +0.13 |
Martin ratioReturn relative to average drawdown | 5.64 | 7.17 | -1.53 |
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
| GNMA | MTBA | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.12 | 1.34 | -0.22 |
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 | 0.25 | 1.37 | -1.12 |
Correlation
The correlation between GNMA and MTBA is 0.85, 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. MTBA - Dividend Comparison
GNMA's dividend yield for the trailing twelve months is around 4.21%, less than MTBA's 6.08% 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% |
MTBA Simplify MBS ETF | 6.08% | 5.98% | 6.03% | 0.48% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Drawdowns
GNMA vs. MTBA - Drawdown Comparison
The maximum GNMA drawdown since its inception was -17.09%, which is greater than MTBA's maximum drawdown of -3.48%. Use the drawdown chart below to compare losses from any high point for GNMA and MTBA.
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Drawdown Indicators
| GNMA | MTBA | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -17.09% | -3.48% | -13.61% |
Max Drawdown (1Y)Largest decline over 1 year | -2.93% | -2.69% | -0.24% |
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 | -1.52% | -1.76% | +0.24% |
Average DrawdownAverage peak-to-trough decline | -3.69% | -0.74% | -2.95% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.99% | 0.67% | +0.32% |
Volatility
GNMA vs. MTBA - Volatility Comparison
iShares GNMA Bond ETF (GNMA) has a higher volatility of 1.79% compared to Simplify MBS ETF (MTBA) at 1.65%. This indicates that GNMA's price experiences larger fluctuations and is considered to be riskier than MTBA based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| GNMA | MTBA | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.79% | 1.65% | +0.14% |
Volatility (6M)Calculated over the trailing 6-month period | 2.76% | 2.09% | +0.67% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.78% | 3.33% | +1.45% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.56% | 3.97% | +2.59% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.11% | 3.97% | +1.14% |