LMUB vs. MYMF

Last updated Jun 4, 2026

LMUB (iShares Long-Term National Muni Bond ETF) and MYMF (State Street My2026 Municipal Bond ETF) are both Municipal Bonds funds. LMUB is passively managed, while MYMF is actively managed. Over the past year, LMUB returned 9.37% vs 2.95% for MYMF. At a 0.45 correlation, their price movements are largely independent. LMUB charges 0.09%/yr vs 0.20%/yr for MYMF.

Performance

LMUB vs. MYMF - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Long-Term National Muni Bond ETF (LMUB) and State Street My2026 Municipal Bond ETF (MYMF). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, LMUB achieves a 2.32% return, which is significantly higher than MYMF's 0.58% return.

LMUB

• 1D: 0.01%
• 1M: 0.90%
• YTD: 2.32%
• 6M: 2.47%
• 1Y: 9.37%
• 3Y*: —
• 5Y*: —
• 10Y*: —

MYMF

• 1D: 0.00%
• 1M: 0.29%
• YTD: 0.58%
• 6M: 0.81%
• 1Y: 2.95%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

LMUB vs. MYMF - Yearly Performance Comparison

	2026 (YTD)	2025
LMUB iShares Long-Term National Muni Bond ETF	2.32%	3.52%
MYMF State Street My2026 Municipal Bond ETF	0.58%	2.22%

Correlation

The correlation between LMUB and MYMF is 0.35, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.35
Correlation (All Time) Calculated using the full available price history since Mar 19, 2025	0.45

The correlation between LMUB and MYMF shifts across timeframes, from 0.35 (1 year) to 0.45 (all time), reflecting how their relationship changes across market environments.

Return for Risk

LMUB vs. MYMF — Risk / Return Rank

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

LMUB

LMUB Risk / Return Rank: 68
LMUB Sharpe Ratio Rank: 69
LMUB Sortino Ratio Rank: 72
LMUB Omega Ratio Rank: 77
LMUB Calmar Ratio Rank: 62
LMUB Martin Ratio Rank: 60

MYMF

MYMF Risk / Return Rank: 96
MYMF Sharpe Ratio Rank: 95
MYMF Sortino Ratio Rank: 98
MYMF Omega Ratio Rank: 98
MYMF Calmar Ratio Rank: 95
MYMF Martin Ratio Rank: 95

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.

LMUB vs. MYMF - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Long-Term National Muni Bond ETF (LMUB) and State Street My2026 Municipal Bond ETF (MYMF). 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.

	LMUB	MYMF	Difference
Sharpe ratio: Return per unit of total volatility	2.24	3.98	-1.74
Sortino ratio: Return per unit of downside risk	3.24	6.98	-3.75
Omega ratio: Gain probability vs. loss probability	1.45	2.21	-0.75
Calmar ratio: Return relative to maximum drawdown	3.02	7.79	-4.77
Martin ratio: Return relative to average drawdown	10.61	28.74	-18.13
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

LMUB vs. MYMF - Sharpe Ratio Comparison

The current LMUB Sharpe Ratio is 2.24, which is lower than the MYMF Sharpe Ratio of 3.98. The chart below compares the historical Sharpe Ratios of LMUB and MYMF, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	LMUB	MYMF	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.24	3.98	-1.74
Sharpe Ratio (All Time) Calculated using the full available price history	0.82	1.36	-0.54

Drawdowns

LMUB vs. MYMF - Drawdown Comparison

The maximum LMUB drawdown since its inception was -5.51%, which is greater than MYMF's maximum drawdown of -2.02%. Use the drawdown chart below to compare losses from any high point for LMUB and MYMF.

Drawdown Indicators

	LMUB	MYMF	Difference
Max Drawdown Largest peak-to-trough decline	-5.51%	-2.02%	-3.49%
Max Drawdown (1Y) Largest decline over 1 year	-3.11%	-0.38%	-2.73%
Current Drawdown Current decline from peak	0.00%	-0.05%	+0.05%
Average Drawdown Average peak-to-trough decline	-1.61%	-0.18%	-1.43%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.89%	0.10%	+0.79%

Volatility

LMUB vs. MYMF - Volatility Comparison

iShares Long-Term National Muni Bond ETF (LMUB) has a higher volatility of 1.44% compared to State Street My2026 Municipal Bond ETF (MYMF) at 0.21%. This indicates that LMUB's price experiences larger fluctuations and is considered to be riskier than MYMF based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	LMUB	MYMF	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.44%	0.21%	+1.23%
Volatility (6M) Calculated over the trailing 6-month period	3.05%	0.52%	+2.53%
Volatility (1Y) Calculated over the trailing 1-year period	4.21%	0.75%	+3.46%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.97%	1.65%	+4.32%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.97%	1.65%	+4.32%

LMUB vs. MYMF - Expense Ratio Comparison

LMUB has a 0.09% expense ratio, which is lower than MYMF's 0.20% 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%.

Dividends

LMUB vs. MYMF - Dividend Comparison

LMUB's dividend yield for the trailing twelve months is around 3.77%, more than MYMF's 2.47% yield.

Position	TTM	2025	2024
LMUB iShares Long-Term National Muni Bond ETF	3.77%	3.14%	0.00%
MYMF State Street My2026 Municipal Bond ETF	2.47%	2.80%	0.83%

Frequently Asked Questions

Can I hold both LMUB and MYMF in my portfolio?

LMUB and MYMF have a correlation of 0.35, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, LMUB or MYMF?

LMUB has higher volatility (1.44%) compared to MYMF (0.21%). In terms of maximum drawdown, LMUB dropped -5.51% vs MYMF's -2.02%.

Which ETF is better, LMUB or MYMF?

On 1-year performance, LMUB leads with 9.37% vs 2.95% for MYMF. On fees, LMUB is cheaper at 0.09% per year. On volatility, MYMF has been the lower-risk option at 0.21%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, LMUB or MYMF?

Over the 1-year period, LMUB has performed better with a 9.37% return vs 2.95%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, LMUB or MYMF?

LMUB is cheaper with a 0.09% expense ratio, compared with 0.20% for MYMF.

Which ETF pays a higher dividend yield, LMUB or MYMF?

LMUB has the higher dividend yield at 3.77%, compared with 2.47% for MYMF.

What is the main difference between LMUB and MYMF?

They also come from different issuers: iShares and State Street. Their fees differ too: 0.09% for LMUB and 0.20% for MYMF.

Which has better risk-adjusted returns?

MYMF currently has the higher Sharpe Ratio (3.98 vs 2.24), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.