MYMF vs. THYM

Last updated Jun 4, 2026

MYMF (State Street My2026 Municipal Bond ETF) and THYM (T. Rowe Price High Income Municipal ETF) are both exchange-traded funds - MYMF is a Municipal Bonds fund actively managed by State Street, while THYM is a High Yield Muni fund actively managed by T. Rowe Price. Both are actively managed. At a 0.16 correlation, their price movements are largely independent. MYMF charges 0.20%/yr vs 0.32%/yr for THYM.

Performance

MYMF vs. THYM - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in State Street My2026 Municipal Bond ETF (MYMF) and T. Rowe Price High Income Municipal ETF (THYM). 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 THYM's 3.33% return.

MYMF

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

THYM

• 1D: 0.14%
• 1M: 1.14%
• YTD: 3.33%
• 6M: 3.62%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

MYMF vs. THYM - Yearly Performance Comparison

	2026 (YTD)	2025
MYMF State Street My2026 Municipal Bond ETF	0.58%	0.35%
THYM T. Rowe Price High Income Municipal ETF	3.33%	0.27%

Correlation

The correlation between MYMF and THYM is 0.16, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (All Time) Calculated using the full available price history since Nov 21, 2025	0.16

Return for Risk

MYMF vs. THYM — 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

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. THYM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for State Street My2026 Municipal Bond ETF (MYMF) and T. Rowe Price High Income Municipal ETF (THYM). 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	THYM	Difference
Sharpe ratio Return per unit of total volatility	3.98	—	—
Sortino ratio Return per unit of downside risk	6.98	—	—
Omega ratio Gain probability vs. loss probability	2.21	—	—
Calmar ratio Return relative to maximum drawdown	7.79	—	—
Martin ratio Return relative to average drawdown	28.74	—	—
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

	MYMF	THYM	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	3.98	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.36	1.62	-0.26

Drawdowns

MYMF vs. THYM - Drawdown Comparison

The maximum MYMF drawdown since its inception was -2.02%, smaller than the maximum THYM drawdown of -2.93%. Use the drawdown chart below to compare losses from any high point for MYMF and THYM.

Drawdown Indicators

	MYMF	THYM	Difference
Max Drawdown Largest peak-to-trough decline	-2.02%	-2.93%	+0.91%
Max Drawdown (1Y) Largest decline over 1 year	-0.38%	—	—
Current Drawdown Current decline from peak	-0.05%	0.00%	-0.05%
Average Drawdown Average peak-to-trough decline	-0.18%	-0.49%	+0.31%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.10%	—	—

Volatility

Volatility by Period

	MYMF	THYM	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.21%	—	—
Volatility (6M) Calculated over the trailing 6-month period	0.52%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	0.75%	4.35%	-3.60%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	1.65%	4.35%	-2.70%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	1.65%	4.35%	-2.70%

MYMF vs. THYM - Expense Ratio Comparison

MYMF has a 0.20% expense ratio, which is lower than THYM's 0.32% expense ratio.

Dividends

MYMF vs. THYM - Dividend Comparison

MYMF's dividend yield for the trailing twelve months is around 2.47%, more than THYM's 2.18% yield.

Position	TTM	2025	2024
MYMF State Street My2026 Municipal Bond ETF	2.47%	2.80%	0.83%
THYM T. Rowe Price High Income Municipal ETF	2.18%	0.37%	0.00%

Frequently Asked Questions

Can I hold both MYMF and THYM in my portfolio?

MYMF and THYM have a correlation of 0.16, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, MYMF or THYM?

On fees, MYMF is cheaper at 0.20% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, MYMF or THYM?

MYMF is cheaper with a 0.20% expense ratio, compared with 0.32% for THYM.

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

MYMF has the higher dividend yield at 2.47%, compared with 2.18% for THYM.

What is the main difference between MYMF and THYM?

MYMF is categorized as Municipal Bonds, while THYM is High Yield Muni. They also come from different issuers: State Street and T. Rowe Price. Their fees differ too: 0.20% for MYMF and 0.32% for THYM.