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GNMA vs. SPMB
Performance
Risk-Adjusted Performance
Dividends
Drawdowns
Volatility

Correlation

The correlation between GNMA and SPMB is 0.58, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.


-0.50.00.51.00.6

Performance

GNMA vs. SPMB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares GNMA Bond ETF (GNMA) and SPDR Portfolio Mortgage Backed Bond ETF (SPMB). The values are adjusted to include any dividend payments, if applicable.

10.00%12.00%14.00%16.00%18.00%SeptemberOctoberNovemberDecember2025February
14.29%
15.96%
GNMA
SPMB

Key characteristics

Sharpe Ratio

GNMA:

0.90

SPMB:

0.87

Sortino Ratio

GNMA:

1.32

SPMB:

1.28

Omega Ratio

GNMA:

1.16

SPMB:

1.15

Calmar Ratio

GNMA:

0.44

SPMB:

0.40

Martin Ratio

GNMA:

2.41

SPMB:

2.27

Ulcer Index

GNMA:

2.20%

SPMB:

2.32%

Daily Std Dev

GNMA:

5.91%

SPMB:

6.02%

Max Drawdown

GNMA:

-17.09%

SPMB:

-18.03%

Current Drawdown

GNMA:

-5.54%

SPMB:

-6.55%

Returns By Period

In the year-to-date period, GNMA achieves a 1.99% return, which is significantly higher than SPMB's 1.61% return. Over the past 10 years, GNMA has underperformed SPMB with an annualized return of 0.80%, while SPMB has yielded a comparatively higher 0.87% annualized return.


GNMA

YTD

1.99%

1M

2.06%

6M

-0.41%

1Y

5.28%

5Y*

-0.45%

10Y*

0.80%

SPMB

YTD

1.61%

1M

1.95%

6M

-0.92%

1Y

5.32%

5Y*

-0.72%

10Y*

0.87%

*Annualized

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. SPMB - Expense Ratio Comparison

GNMA has a 0.15% expense ratio, which is higher than SPMB's 0.04% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.


GNMA
iShares GNMA Bond ETF
Expense ratio chart for GNMA: current value at 0.15% compared with the broader market ranging from 0.00% to 2.12%.0.50%1.00%1.50%2.00%0.15%
Expense ratio chart for SPMB: current value at 0.04% compared with the broader market ranging from 0.00% to 2.12%.0.50%1.00%1.50%2.00%0.04%

Risk-Adjusted Performance

GNMA vs. SPMB — Risk-Adjusted Performance Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

GNMA
The Risk-Adjusted Performance Rank of GNMA is 3131
Overall Rank
The Sharpe Ratio Rank of GNMA is 3636
Sharpe Ratio Rank
The Sortino Ratio Rank of GNMA is 3535
Sortino Ratio Rank
The Omega Ratio Rank of GNMA is 3333
Omega Ratio Rank
The Calmar Ratio Rank of GNMA is 2323
Calmar Ratio Rank
The Martin Ratio Rank of GNMA is 2828
Martin Ratio Rank

SPMB
The Risk-Adjusted Performance Rank of SPMB is 3030
Overall Rank
The Sharpe Ratio Rank of SPMB is 3535
Sharpe Ratio Rank
The Sortino Ratio Rank of SPMB is 3434
Sortino Ratio Rank
The Omega Ratio Rank of SPMB is 3232
Omega Ratio Rank
The Calmar Ratio Rank of SPMB is 2222
Calmar Ratio Rank
The Martin Ratio Rank of SPMB is 2626
Martin Ratio Rank
The risk-adjusted ranks indicate the investment's position relative to the market. A rank closer to 100 signifies top-performing investments, while a rank closer to 0 might suggest underperformance, based on the selected ratio. The values are calculated based on the past 12 months of returns.

GNMA vs. SPMB - Risk-Adjusted Performance Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares GNMA Bond ETF (GNMA) and SPDR Portfolio Mortgage Backed Bond ETF (SPMB). 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.


Sharpe ratio
The chart of Sharpe ratio for GNMA, currently valued at 0.90, compared to the broader market0.002.004.000.900.87
The chart of Sortino ratio for GNMA, currently valued at 1.32, compared to the broader market0.005.0010.001.321.28
The chart of Omega ratio for GNMA, currently valued at 1.16, compared to the broader market0.501.001.502.002.503.003.501.161.15
The chart of Calmar ratio for GNMA, currently valued at 0.44, compared to the broader market0.005.0010.0015.0020.000.440.40
The chart of Martin ratio for GNMA, currently valued at 2.41, compared to the broader market0.0020.0040.0060.0080.00100.00120.002.412.27
GNMA
SPMB

The current GNMA Sharpe Ratio is 0.90, which is comparable to the SPMB Sharpe Ratio of 0.87. The chart below compares the historical Sharpe Ratios of GNMA and SPMB, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.


Rolling 12-month Sharpe Ratio0.000.501.001.502.00SeptemberOctoberNovemberDecember2025February
0.90
0.87
GNMA
SPMB

Dividends

GNMA vs. SPMB - Dividend Comparison

GNMA's dividend yield for the trailing twelve months is around 4.32%, more than SPMB's 3.73% yield.


TTM20242023202220212020201920182017201620152014
GNMA
iShares GNMA Bond ETF
4.32%4.15%3.43%2.01%0.64%1.89%2.62%2.41%2.14%1.89%1.50%1.22%
SPMB
SPDR Portfolio Mortgage Backed Bond ETF
3.73%3.76%3.21%2.97%2.60%2.95%3.24%3.36%3.14%3.00%3.05%3.54%

Drawdowns

GNMA vs. SPMB - Drawdown Comparison

The maximum GNMA drawdown since its inception was -17.09%, smaller than the maximum SPMB drawdown of -18.03%. Use the drawdown chart below to compare losses from any high point for GNMA and SPMB. For additional features, visit the drawdowns tool.


-9.00%-8.00%-7.00%-6.00%-5.00%-4.00%SeptemberOctoberNovemberDecember2025February
-5.54%
-6.55%
GNMA
SPMB

Volatility

GNMA vs. SPMB - Volatility Comparison

iShares GNMA Bond ETF (GNMA) and SPDR Portfolio Mortgage Backed Bond ETF (SPMB) have volatilities of 1.54% and 1.61%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.


1.00%1.20%1.40%1.60%1.80%2.00%SeptemberOctoberNovemberDecember2025February
1.54%
1.61%
GNMA
SPMB
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Disclaimer

The information contained herein does not constitute investment advice and made available for educational purposes only. Prices and returns on equities are listed without consideration of fees, commissions, taxes, penalties, or interest payable due to purchasing, holding, or selling.

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