WTMY vs. IROC

Last updated Jun 21, 2026

WTMY (WisdomTree High Income Laddered Municipal ETF) and IROC (Invesco Rochester High Yield Municipal ETF) are both High Yield Muni funds. Both are actively managed. Over the past year, WTMY returned 5.53% vs 7.05% for IROC. A 0.53 correlation means they provide meaningful diversification when combined. WTMY charges 0.35%/yr vs 0.39%/yr for IROC.

Performance

WTMY vs. IROC - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in WisdomTree High Income Laddered Municipal ETF (WTMY) and Invesco Rochester High Yield Municipal ETF (IROC). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, WTMY achieves a 1.27% return, which is significantly lower than IROC's 3.07% return.

WTMY

• 1D: 0.16%
• 1M: 1.46%
• YTD: 1.27%
• 6M: 1.48%
• 1Y: 5.53%
• 3Y*: —
• 5Y*: —
• 10Y*: —

IROC

• 1D: 0.24%
• 1M: 1.67%
• YTD: 3.07%
• 6M: 3.30%
• 1Y: 7.05%
• 3Y*: 5.16%
• 5Y*: —
• 10Y*: —

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

WTMY vs. IROC - Yearly Performance Comparison

	2026 (YTD)	2025
WTMY WisdomTree High Income Laddered Municipal ETF	1.27%	3.84%
IROC Invesco Rochester High Yield Municipal ETF	3.07%	3.20%

Correlation

The correlation between WTMY and IROC is 0.47, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.47
Correlation (All Time) Calculated using the full available price history since Apr 3, 2025	0.53

The correlation between WTMY and IROC has been stable across timeframes, ranging from 0.47 to 0.53 - a consistent structural relationship.

Return for Risk

WTMY vs. IROC — Risk / Return Rank

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

WTMY

WTMY Risk / Return Rank: 64
WTMY Sharpe Ratio Rank: 72
WTMY Sortino Ratio Rank: 78
WTMY Omega Ratio Rank: 87
WTMY Calmar Ratio Rank: 42
WTMY Martin Ratio Rank: 39

IROC

IROC Risk / Return Rank: 73
IROC Sharpe Ratio Rank: 78
IROC Sortino Ratio Rank: 85
IROC Omega Ratio Rank: 87
IROC Calmar Ratio Rank: 57
IROC 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.

WTMY vs. IROC - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for WisdomTree High Income Laddered Municipal ETF (WTMY) and Invesco Rochester High Yield Municipal ETF (IROC). 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.

	WTMY	IROC	Difference
Sharpe ratio: Return per unit of total volatility	2.22	2.39	-0.17
Sortino ratio: Return per unit of downside risk	3.31	3.61	-0.30
Omega ratio: Gain probability vs. loss probability	1.51	1.51	-0.01
Calmar ratio: Return relative to maximum drawdown	2.05	2.73	-0.68
Martin ratio: Return relative to average drawdown	5.97	9.81	-3.84

WTMY vs. IROC - Sharpe Ratio Comparison

The current WTMY Sharpe Ratio is 2.22, which is comparable to the IROC Sharpe Ratio of 2.39. The chart below compares the historical Sharpe Ratios of WTMY and IROC, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

WTMY vs. IROC - Drawdown Comparison

The maximum WTMY drawdown since its inception was -3.67%, smaller than the maximum IROC drawdown of -4.79%. Use the drawdown chart below to compare losses from any high point for WTMY and IROC.

Drawdown Indicators

	WTMY	IROC	Difference
Max Drawdown Largest peak-to-trough decline	-3.67%	-4.79%	+1.12%
Max Drawdown (1Y) Largest decline over 1 year	-2.71%	-2.64%	-0.07%
Max Drawdown (3Y) Largest decline over 3 years	—	-4.79%	—
Current Drawdown Current decline from peak	-0.83%	0.00%	-0.83%
Average Drawdown Average peak-to-trough decline	-0.81%	-0.83%	+0.02%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.93%	0.73%	+0.20%

Volatility

WTMY vs. IROC - Volatility Comparison

The current volatility for WisdomTree High Income Laddered Municipal ETF (WTMY) is 0.73%, while Invesco Rochester High Yield Municipal ETF (IROC) has a volatility of 0.79%. This indicates that WTMY experiences smaller price fluctuations and is considered to be less risky than IROC based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	WTMY	IROC	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.73%	0.79%	-0.06%
Volatility (6M) Calculated over the trailing 6-month period	1.86%	2.38%	-0.52%
Volatility (1Y) Calculated over the trailing 1-year period	2.50%	3.03%	-0.53%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	3.52%	3.49%	+0.03%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.52%	3.49%	+0.03%

WTMY vs. IROC - Expense Ratio Comparison

WTMY has a 0.35% expense ratio, which is lower than IROC's 0.39% expense ratio.

Dividends

WTMY vs. IROC - Dividend Comparison

WTMY's dividend yield for the trailing twelve months is around 3.42%, less than IROC's 5.10% yield.

Position	TTM	2025	2024	2023
IROC Invesco Rochester High Yield Municipal ETF	5.10%	4.79%	4.08%	3.68%
WTMY WisdomTree High Income Laddered Municipal ETF	3.42%	2.56%	0.00%	0.00%

Frequently Asked Questions

Can I hold both WTMY and IROC in my portfolio?

WTMY and IROC have a correlation of 0.47, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, WTMY or IROC?

IROC has higher volatility (0.79%) compared to WTMY (0.73%). In terms of maximum drawdown, WTMY dropped -3.67% vs IROC's -4.79%.

Which ETF is better, WTMY or IROC?

On 1-year performance, IROC leads with 7.05% vs 5.53% for WTMY. On fees, WTMY is cheaper at 0.35% 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, WTMY or IROC?

Over the 1-year period, IROC has performed better with a 7.05% return vs 5.53%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, WTMY or IROC?

WTMY is cheaper with a 0.35% expense ratio, compared with 0.39% for IROC.

Which ETF pays a higher dividend yield, WTMY or IROC?

IROC has the higher dividend yield at 5.10%, compared with 3.42% for WTMY.

What is the main difference between WTMY and IROC?

They also come from different issuers: WisdomTree and Invesco. Their fees differ too: 0.35% for WTMY and 0.39% for IROC.

Which has better risk-adjusted returns?

IROC currently has the higher Sharpe Ratio (2.39 vs 2.22), 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.