LMUB vs. THYM
LMUB (iShares Long-Term National Muni Bond ETF) and THYM (T. Rowe Price High Income Municipal ETF) are both exchange-traded funds - LMUB is a Municipal Bonds fund tracking the ICE AMT-Free US Long National Municipal Index, while THYM is a High Yield Muni fund actively managed by T. Rowe Price. LMUB is passively managed, while THYM is actively managed. A 0.53 correlation means they provide meaningful diversification when combined. LMUB charges 0.09%/yr vs 0.32%/yr for THYM.
Performance
LMUB vs. THYM - Performance Comparison
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Returns By Period
In the year-to-date period, LMUB achieves a 2.62% return, which is significantly lower than THYM's 3.61% return.
LMUB
- 1D
- -0.08%
- 1M
- 2.29%
- YTD
- 2.62%
- 6M
- 2.57%
- 1Y
- 9.00%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
THYM
- 1D
- -0.21%
- 1M
- 1.68%
- YTD
- 3.61%
- 6M
- 3.80%
- 1Y
- —
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
LMUB vs. THYM - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
LMUB iShares Long-Term National Muni Bond ETF | 2.62% | 0.08% |
THYM T. Rowe Price High Income Municipal ETF | 3.61% | 0.25% |
Correlation
The correlation between LMUB and THYM is 0.53, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (All Time) Calculated using the full available price history since Nov 20, 2025 | 0.53 |
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Return for Risk
LMUB vs. THYM — Risk / Return Rank
LMUB
THYM
Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.
LMUB vs. THYM - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Long-Term National Muni Bond ETF (LMUB) 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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| LMUB | THYM | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | — | — | |
| Sortino ratioReturn per unit of downside risk | — | — | |
| Omega ratioGain probability vs. loss probability | 1.44 | — | — |
| Calmar ratioReturn relative to maximum drawdown | 2.90 | — | — |
| Martin ratioReturn relative to average drawdown | 10.21 | — | — |
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Drawdowns
LMUB vs. THYM - Drawdown Comparison
The maximum LMUB drawdown since its inception was -5.51%, which is greater than THYM's maximum drawdown of -2.93%. Use the drawdown chart below to compare losses from any high point for LMUB and THYM.
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Drawdown Indicators
| LMUB | THYM | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -5.51% | -2.93% | -2.58% |
Max Drawdown (1Y)Largest decline over 1 year | -3.11% | — | — |
Current DrawdownCurrent decline from peak | -0.11% | -0.24% | +0.13% |
Average DrawdownAverage peak-to-trough decline | -1.54% | -0.47% | -1.07% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.88% | — | — |
Volatility
LMUB vs. THYM - Volatility Comparison
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Volatility by Period
| LMUB | THYM | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.08% | — | — |
Volatility (6M)Calculated over the trailing 6-month period | 2.97% | — | — |
Volatility (1Y)Calculated over the trailing 1-year period | 4.15% | 4.31% | -0.16% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.86% | 4.31% | +1.55% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.86% | 4.31% | +1.55% |
LMUB vs. THYM - Expense Ratio Comparison
LMUB has a 0.09% expense ratio, which is lower than THYM's 0.32% expense ratio.
Dividends
LMUB vs. THYM - Dividend Comparison
LMUB's dividend yield for the trailing twelve months is around 3.76%, more than THYM's 2.18% yield.
| Position | TTM | 2025 |
|---|---|---|
LMUB iShares Long-Term National Muni Bond ETF | 3.76% | 3.14% |
THYM T. Rowe Price High Income Municipal ETF | 2.18% | 0.37% |
Frequently Asked Questions
LMUB and THYM have a correlation of 0.53, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
On fees, LMUB is cheaper at 0.09% per year. The better choice depends on whether you care most about return, fees, risk, or income.
LMUB is cheaper with a 0.09% expense ratio, compared with 0.32% for THYM.
LMUB has the higher dividend yield at 3.76%, compared with 2.18% for THYM.
LMUB is categorized as Municipal Bonds, while THYM is High Yield Muni. They also come from different issuers: iShares and T. Rowe Price. Their fees differ too: 0.09% for LMUB and 0.32% for THYM.
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