MYMF vs. IBMO

Last updated Jun 4, 2026

MYMF (State Street My2026 Municipal Bond ETF) and IBMO (iShares iBonds Dec 2026 Term Muni Bond ETF) are both Municipal Bonds funds. MYMF is actively managed, while IBMO is passively managed. Over the past year, MYMF returned 2.95% vs 2.71% for IBMO. At a 0.27 correlation, their price movements are largely independent. MYMF charges 0.20%/yr vs 0.18%/yr for IBMO.

Performance

MYMF vs. IBMO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in State Street My2026 Municipal Bond ETF (MYMF) and iShares iBonds Dec 2026 Term Muni Bond ETF (IBMO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MYMF achieves a 0.58% return, which is significantly lower than IBMO's 0.94% return.

MYMF

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

IBMO

• 1D: 0.01%
• 1M: 0.26%
• YTD: 0.94%
• 6M: 1.23%
• 1Y: 2.71%
• 3Y*: 2.97%
• 5Y*: 0.67%
• 10Y*: —

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

MYMF vs. IBMO - Yearly Performance Comparison

	2026 (YTD)	2025	2024
MYMF State Street My2026 Municipal Bond ETF	0.58%	3.01%	0.19%
IBMO iShares iBonds Dec 2026 Term Muni Bond ETF	0.94%	3.11%	0.02%

Correlation

The correlation between MYMF and IBMO is 0.04, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.04
Correlation (All Time) Calculated using the full available price history since Sep 25, 2024	0.27

Over the past year, the correlation between MYMF and IBMO has dropped to 0.04 - well below their long-term average of 0.27, suggesting their price drivers have been diverging.

Return for Risk

MYMF vs. IBMO — Risk / Return Rank

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

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

IBMO

IBMO Risk / Return Rank: 86
IBMO Sharpe Ratio Rank: 76
IBMO Sortino Ratio Rank: 87
IBMO Omega Ratio Rank: 83
IBMO Calmar Ratio Rank: 94
IBMO Martin Ratio Rank: 91

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.

MYMF vs. IBMO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for State Street My2026 Municipal Bond ETF (MYMF) and iShares iBonds Dec 2026 Term Muni Bond ETF (IBMO). 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.

	MYMF	IBMO	Difference
Sharpe ratio Return per unit of total volatility	3.98	2.47	+1.51
Sortino ratio Return per unit of downside risk	6.98	3.97	+3.01
Omega ratio Gain probability vs. loss probability	2.21	1.51	+0.70
Calmar ratio Return relative to maximum drawdown	7.79	7.20	+0.59
Martin ratio Return relative to average drawdown	28.74	21.39	+7.35
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MYMF vs. IBMO - Sharpe Ratio Comparison

The current MYMF Sharpe Ratio is 3.98, which is higher than the IBMO Sharpe Ratio of 2.47. The chart below compares the historical Sharpe Ratios of MYMF and IBMO, 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

	MYMF	IBMO	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	3.98	2.47	+1.51
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.31	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.36	0.41	+0.95

Drawdowns

MYMF vs. IBMO - Drawdown Comparison

The maximum MYMF drawdown since its inception was -2.02%, smaller than the maximum IBMO drawdown of -14.77%. Use the drawdown chart below to compare losses from any high point for MYMF and IBMO.

Drawdown Indicators

	MYMF	IBMO	Difference
Max Drawdown Largest peak-to-trough decline	-2.02%	-14.77%	+12.75%
Max Drawdown (1Y) Largest decline over 1 year	-0.38%	-0.38%	0.00%
Max Drawdown (3Y) Largest decline over 3 years	—	-1.76%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-8.86%	—
Current Drawdown Current decline from peak	-0.05%	0.00%	-0.05%
Average Drawdown Average peak-to-trough decline	-0.18%	-2.32%	+2.14%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.10%	0.13%	-0.03%

Volatility

MYMF vs. IBMO - Volatility Comparison

State Street My2026 Municipal Bond ETF (MYMF) and iShares iBonds Dec 2026 Term Muni Bond ETF (IBMO) have volatilities of 0.21% and 0.21%, 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.

Volatility by Period

	MYMF	IBMO	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.21%	0.21%	0.00%
Volatility (6M) Calculated over the trailing 6-month period	0.52%	0.84%	-0.32%
Volatility (1Y) Calculated over the trailing 1-year period	0.75%	1.11%	-0.36%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	1.65%	2.15%	-0.50%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	1.65%	4.52%	-2.87%

MYMF vs. IBMO - Expense Ratio Comparison

MYMF has a 0.20% expense ratio, which is higher than IBMO's 0.18% 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%.

Dividends

MYMF vs. IBMO - Dividend Comparison

MYMF's dividend yield for the trailing twelve months is around 2.47%, more than IBMO's 2.39% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019
IBMO iShares iBonds Dec 2026 Term Muni Bond ETF	2.39%	2.37%	2.15%	1.65%	0.89%	0.62%	1.03%	1.01%
MYMF State Street My2026 Municipal Bond ETF	2.47%	2.80%	0.83%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both MYMF and IBMO in my portfolio?

MYMF and IBMO have a correlation of 0.04, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MYMF or IBMO?

IBMO has higher volatility (0.21%) compared to MYMF (0.21%). In terms of maximum drawdown, MYMF dropped -2.02% vs IBMO's -14.77%.

Which ETF is better, MYMF or IBMO?

On 1-year performance, MYMF leads with 2.95% vs 2.71% for IBMO. On fees, IBMO is cheaper at 0.18% per year. Their volatility is very similar. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, MYMF or IBMO?

Over the 1-year period, MYMF has performed better with a 2.95% return vs 2.71%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, MYMF or IBMO?

IBMO is cheaper with a 0.18% expense ratio, compared with 0.20% for MYMF.

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

MYMF has the higher dividend yield at 2.47%, compared with 2.39% for IBMO.

What is the main difference between MYMF and IBMO?

They also come from different issuers: State Street and iShares. Their fees differ too: 0.20% for MYMF and 0.18% for IBMO.

Which has better risk-adjusted returns?

MYMF currently has the higher Sharpe Ratio (3.98 vs 2.47), 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.