JMTG vs. MBB

Last updated Apr 2, 2026

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

JMTG and MBB are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. JMTG is an actively managed fund by JPMorgan. It was launched on Aug 18, 2000. MBB is a passively managed fund by iShares that tracks the performance of the Barclays Capital U.S. MBS Index. It was launched on Mar 16, 2007.

Performance

JMTG vs. MBB - Performance Comparison

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

JMTG vs. MBB - Yearly Performance Comparison

	2026 (YTD)	2025
JMTG JPMorgan Mortgage-Backed Securities ETF	0.60%	3.90%
MBB iShares MBS Bond ETF	0.46%	3.98%

Returns By Period

In the year-to-date period, JMTG achieves a 0.60% return, which is significantly higher than MBB's 0.46% return.

JMTG

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

MBB

• 1D: 0.06%
• 1M: -1.09%
• YTD: 0.46%
• 6M: 1.65%
• 1Y: 5.31%
• 3Y*: 4.11%
• 5Y*: 0.41%
• 10Y*: 1.35%

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

JMTG vs. MBB - Expense Ratio Comparison

JMTG has a 0.24% expense ratio, which is higher than MBB's 0.06% 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%.

JMTG

JPMorgan Mortgage-Backed Securities ETF

MBB

iShares MBS Bond ETF

Return for Risk

JMTG vs. MBB — Risk / Return Rank

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

MBB

MBB Risk / Return Rank: 59
MBB Sharpe Ratio Rank: 58
MBB Sortino Ratio Rank: 57
MBB Omega Ratio Rank: 47
MBB Calmar Ratio Rank: 77
MBB Martin Ratio Rank: 57

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.

JMTG vs. MBB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for JPMorgan Mortgage-Backed Securities ETF (JMTG) and iShares MBS Bond ETF (MBB). 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.

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Sharpe Ratios by Period

	JMTG	MBB	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	1.07	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.06	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.26	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.65	0.59	+1.06

Correlation

The correlation between JMTG and MBB is 0.91, 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

JMTG vs. MBB - Dividend Comparison

JMTG's dividend yield for the trailing twelve months is around 3.16%, less than MBB's 4.23% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
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%
MBB iShares MBS Bond ETF	4.23%	4.21%	3.94%	3.40%	2.31%	1.05%	2.10%	2.77%	2.64%	2.23%	2.58%	2.66%

Drawdowns

JMTG vs. MBB - Drawdown Comparison

The maximum JMTG drawdown since its inception was -2.64%, smaller than the maximum MBB drawdown of -17.64%. Use the drawdown chart below to compare losses from any high point for JMTG and MBB.

Drawdown Indicators

	JMTG	MBB	Difference
Max Drawdown Largest peak-to-trough decline	-2.64%	-17.64%	+15.00%
Max Drawdown (1Y) Largest decline over 1 year	—	-2.64%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-17.19%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-17.64%	—
Current Drawdown Current decline from peak	-1.65%	-1.63%	-0.02%
Average Drawdown Average peak-to-trough decline	-0.46%	-2.36%	+1.90%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	0.97%	—

Volatility

Volatility by Period

	JMTG	MBB	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	1.98%	—
Volatility (6M) Calculated over the trailing 6-month period	—	3.00%	—
Volatility (1Y) Calculated over the trailing 1-year period	3.67%	4.97%	-1.30%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	3.67%	6.77%	-3.10%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.67%	5.27%	-1.60%