GNMA vs. JMTG

Last updated Apr 2, 2026

Compare and contrast key facts about iShares GNMA Bond ETF (GNMA) and JPMorgan Mortgage-Backed Securities ETF (JMTG).

GNMA and JMTG 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. JMTG is an actively managed fund by JPMorgan. It was launched on Aug 18, 2000.

Performance

GNMA vs. JMTG - Performance Comparison

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

GNMA vs. JMTG - Yearly Performance Comparison

	2026 (YTD)	2025
GNMA iShares GNMA Bond ETF	0.45%	3.89%
JMTG JPMorgan Mortgage-Backed Securities ETF	0.60%	3.90%

Returns By Period

In the year-to-date period, GNMA achieves a 0.45% return, which is significantly lower than JMTG's 0.60% 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%

JMTG

• 1D: 0.01%
• 1M: -1.21%
• YTD: 0.60%
• 6M: 1.93%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

GNMA vs. JMTG - Expense Ratio Comparison

GNMA has a 0.15% expense ratio, which is lower than JMTG's 0.24% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

JMTG

JPMorgan Mortgage-Backed Securities ETF

GNMA

iShares GNMA Bond ETF

Return for Risk

GNMA vs. JMTG — Risk / Return Rank

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

GNMA

GNMA Risk / Return Rank: 59
GNMA Sharpe Ratio Rank: 61
GNMA Sortino Ratio Rank: 61
GNMA Omega Ratio Rank: 51
GNMA Calmar Ratio Rank: 69
GNMA Martin Ratio Rank: 54

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.

GNMA vs. JMTG - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares GNMA Bond ETF (GNMA) and JPMorgan Mortgage-Backed Securities ETF (JMTG). 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	JMTG	Difference
Sharpe ratio Return per unit of total volatility	1.12	—	—
Sortino ratio Return per unit of downside risk	1.63	—	—
Omega ratio Gain probability vs. loss probability	1.20	—	—
Calmar ratio Return relative to maximum drawdown	1.90	—	—
Martin ratio Return relative to average drawdown	5.64	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	GNMA	JMTG	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.12	—	—
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	1.65	-1.40

Correlation

The correlation between GNMA and JMTG is 0.80, 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. JMTG - Dividend Comparison

GNMA's dividend yield for the trailing twelve months is around 4.21%, more than JMTG's 3.16% 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%
JMTG JPMorgan Mortgage-Backed Securities ETF	3.16%	2.10%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Drawdowns

GNMA vs. JMTG - Drawdown Comparison

The maximum GNMA drawdown since its inception was -17.09%, which is greater than JMTG's maximum drawdown of -2.64%. Use the drawdown chart below to compare losses from any high point for GNMA and JMTG.

Drawdown Indicators

	GNMA	JMTG	Difference
Max Drawdown Largest peak-to-trough decline	-17.09%	-2.64%	-14.45%
Max Drawdown (1Y) Largest decline over 1 year	-2.93%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-16.02%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-17.09%	—	—
Current Drawdown Current decline from peak	-1.52%	-1.65%	+0.13%
Average Drawdown Average peak-to-trough decline	-3.69%	-0.46%	-3.23%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.99%	—	—

Volatility

Volatility by Period

	GNMA	JMTG	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.79%	—	—
Volatility (6M) Calculated over the trailing 6-month period	2.76%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	4.78%	3.67%	+1.11%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.56%	3.67%	+2.89%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.11%	3.67%	+1.44%