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iShares GNMA Bond ETF (GNMA)
Performance
Return for Risk
Dividends
Drawdowns
Volatility

ETF Info

ISIN
US46429B3336
CUSIP
46429B333
Issuer
iShares
Inception Date
Feb 14, 2012
Region
North America (U.S.)
Leveraged
1x (No leverage)
Index Tracked
Barclays Capital GNMA Index
Distribution Policy
Distributing
Asset Class
Bond

Share Price Chart


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Performance

Performance Chart

The chart shows the growth of an initial investment of $10,000 in iShares GNMA Bond ETF, comparing it to the performance of the S&P 500 index or another benchmark. All prices have been adjusted for splits and dividends.


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S&P 500 Index

Returns By Period

iShares GNMA Bond ETF (GNMA) has returned 0.22% so far this year and 5.33% over the past 12 months. Over the last ten years, GNMA has returned 1.24% per year, falling short of the S&P 500 Index benchmark, which averaged 12.16% annually.


iShares GNMA Bond ETF

1D
0.05%
1M
-1.75%
YTD
0.22%
6M
2.07%
1Y
5.33%
3Y*
3.97%
5Y*
0.40%
10Y*
1.24%

Benchmark (S&P 500 Index)

1D
2.91%
1M
-5.09%
YTD
-4.63%
6M
-2.39%
1Y
16.33%
3Y*
16.69%
5Y*
10.18%
10Y*
12.16%
*Multi-year figures are annualized to reflect compound growth (CAGR)

Monthly Returns

Based on dividend-adjusted daily data since Feb 21, 2012, GNMA's average daily return is +0.01%, while the average monthly return is +0.12%. At this rate, your investment would double in approximately 48.2 years.

Historically, 56% of months were positive and 44% were negative. The best month was Nov 2023 with a return of +5.3%, while the worst month was Sep 2022 at -5.1%. The longest winning streak lasted 8 consecutive months, and the longest losing streak was 9 months.

On a daily basis, GNMA closed higher 50% of trading days. The best single day was Nov 10, 2022 with a return of +2.5%, while the worst single day was Aug 16, 2012 at -3.7%.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
20260.47%1.52%-1.75%0.22%
20250.61%2.34%0.03%0.40%-0.88%1.67%-0.58%2.04%0.54%0.98%0.67%0.19%8.25%
2024-0.47%-1.60%0.80%-2.49%1.73%1.14%2.52%1.70%0.77%-2.62%1.38%-1.61%1.07%
20233.20%-2.58%2.21%0.28%-0.63%-0.22%-0.04%-0.73%-3.11%-1.94%5.26%3.89%5.34%
2022-1.29%-0.50%-2.18%-3.37%1.14%-1.90%3.52%-3.44%-5.05%-0.69%3.90%-1.16%-10.83%
2021-0.24%-0.92%0.08%0.31%-0.37%-0.23%0.24%-0.14%-0.13%-0.31%-0.16%0.00%-1.86%

Benchmark Metrics

iShares GNMA Bond ETF has an annualized alpha of 1.22%, beta of 0.02, and R² of 0.01 versus S&P 500 Index. Calculated based on daily prices since February 22, 2012.

  • This ETF participated in 13.09% of S&P 500 Index downside but only 9.70% of its upside — more exposed to losses than it benefited from rallies.
  • Beta of 0.02 may look defensive, but with R² of 0.01 this ETF is largely uncorrelated with S&P 500 Index — low beta reflects independence, not downside protection. See the Volatility section for a true picture of this ETF's risk.
  • R² of 0.01 means this ETF moves largely independently of S&P 500 Index — capture ratios reflect limited market correlation rather than active downside protection. Consider using a more representative benchmark.

Alpha
1.22%
Beta
0.02
0.01
Upside Capture
9.70%
Downside Capture
13.09%

Expense Ratio

GNMA has an expense ratio of 0.15%, which is considered low.


Return for Risk

Risk / Return Rank

GNMA ranks 60 for risk / return — better than 60% of ETFs on our site. You're getting solid returns for the risk taken. A good sign, especially for investors who want growth without excessive volatility.


GNMA Risk / Return Rank: 6060
Overall Rank
GNMA Sharpe Ratio Rank: 6262
Sharpe Ratio Rank
GNMA Sortino Ratio Rank: 6161
Sortino Ratio Rank
GNMA Omega Ratio Rank: 5252
Omega Ratio Rank
GNMA Calmar Ratio Rank: 7171
Calmar Ratio Rank
GNMA Martin Ratio Rank: 5656
Martin Ratio Rank
The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

Return / Risk — by metrics

The table below present risk-adjusted performance metrics for iShares GNMA Bond ETF (GNMA) and compare them to a chosen benchmark (S&P 500 Index).


GNMABenchmarkDifference

Sharpe ratio

Return per unit of total volatility

1.12

0.90

+0.23

Sortino ratio

Return per unit of downside risk

1.63

1.39

+0.24

Omega ratio

Gain probability vs. loss probability

1.20

1.21

-0.01

Calmar ratio

Return relative to maximum drawdown

1.88

1.40

+0.48

Martin ratio

Return relative to average drawdown

5.60

6.61

-1.01

Explore GNMA risk-adjusted metrics in detail

Dive deeper into individual metrics with historical trends, benchmark comparisons, and performance across different time periods.

Dividends

Dividend History

iShares GNMA Bond ETF provided a 4.21% dividend yield over the last twelve months, with an annual payout of $1.87 per share. The fund has been increasing its distributions for 4 consecutive years.


1.00%2.00%3.00%4.00%$0.00$0.50$1.00$1.50$2.0020152016201720182019202020212022202320242025
Dividends
Dividend Yield
PeriodTTM20252024202320222021202020192018201720162015
Dividend$1.87$1.86$1.78$1.52$0.87$0.32$0.96$1.31$1.17$1.06$0.94$0.75

Dividend yield

4.21%4.19%4.15%3.43%2.01%0.64%1.89%2.61%2.41%2.15%1.89%1.50%

Monthly Dividends

The table displays the monthly dividend distributions for iShares GNMA Bond ETF. The dividends shown in the table have been adjusted to account for any splits that may have occurred.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
2026$0.00$0.16$0.15$0.31
2025$0.00$0.16$0.15$0.15$0.16$0.15$0.16$0.16$0.16$0.16$0.15$0.31$1.86
2024$0.00$0.15$0.15$0.16$0.14$0.15$0.15$0.15$0.15$0.15$0.15$0.29$1.78
2023$0.00$0.12$0.12$0.12$0.12$0.12$0.12$0.13$0.13$0.13$0.12$0.27$1.52
2022$0.00$0.03$0.04$0.09$0.07$0.07$0.07$0.08$0.08$0.08$0.09$0.19$0.87
2021$0.00$0.08$0.08$0.08$0.07$0.00$0.00$0.00$0.00$0.00$0.00$0.01$0.32

Drawdowns

Drawdowns Chart

The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.


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Worst Drawdowns

The table below displays the maximum drawdowns of the iShares GNMA Bond ETF. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.

The maximum drawdown for the iShares GNMA Bond ETF was 17.09%, occurring on Oct 20, 2022. Recovery took 757 trading sessions.

The current iShares GNMA Bond ETF drawdown is 1.75%.


Depth

Start

To Bottom

Bottom

To Recover

End

Total

-17.09%Apr 9, 2020639Oct 20, 2022757Oct 28, 20251396
-9.58%Aug 16, 2012222Jul 8, 2013639Jan 20, 2016861
-3.06%Aug 11, 2016148Mar 14, 2017121Sep 5, 2017269
-2.96%Sep 6, 2017176May 17, 2018155Dec 28, 2018331
-2.52%Mar 10, 20203Mar 12, 20208Mar 24, 202011

Volatility

Volatility Chart

The chart below shows the rolling one-month volatility.


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