MYD vs. MUB

Last updated Apr 1, 2026

Compare and contrast key facts about BlackRock MuniYield Fund (MYD) and iShares National AMT-Free Muni Bond ETF (MUB).

MYD is an actively managed fund by BlackRock. It was launched on Nov 29, 1991. MUB is a passively managed fund by iShares that tracks the performance of the S&P National AMT-Free Municipal Bond Index. It was launched on Sep 7, 2007.

Performance

MYD vs. MUB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in BlackRock MuniYield Fund (MYD) and iShares National AMT-Free Muni Bond ETF (MUB). The values are adjusted to include any dividend payments, if applicable.

MYD vs. MUB - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MYD BlackRock MuniYield Fund	3.73%	7.56%	2.10%	8.31%	-25.47%	7.14%	1.71%	24.21%	-8.91%	8.76%
MUB iShares National AMT-Free Muni Bond ETF	-0.37%	3.78%	1.26%	5.56%	-7.34%	1.02%	5.12%	7.06%	0.93%	4.72%

Returns By Period

MYD

• 1D: —
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

MUB

• 1D: 0.19%
• 1M: -2.28%
• YTD: -0.37%
• 6M: 1.28%
• 1Y: 3.94%
• 3Y*: 2.53%
• 5Y*: 0.79%
• 10Y*: 1.96%

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

MYD vs. MUB - Expense Ratio Comparison

MYD has a 2.07% expense ratio, which is higher than MUB's 0.07% expense ratio.

MYD

BlackRock MuniYield Fund

MUB

iShares National AMT-Free Muni Bond ETF

Return for Risk

MYD vs. MUB — Risk / Return Rank

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

MUB

MUB Risk / Return Rank: 54
MUB Sharpe Ratio Rank: 58
MUB Sortino Ratio Rank: 49
MUB Omega Ratio Rank: 60
MUB Calmar Ratio Rank: 55
MUB Martin Ratio Rank: 45

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.

MYD vs. MUB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for BlackRock MuniYield Fund (MYD) and iShares National AMT-Free Muni Bond ETF (MUB). 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.

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Sharpe Ratios by Period

	MYD	MUB	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	0.96	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.20	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.40	—
Sharpe Ratio (All Time) Calculated using the full available price history	—	0.57	—

Correlation

The correlation between MYD and MUB is 0.33, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

MYD vs. MUB - Dividend Comparison

MYD's dividend yield for the trailing twelve months is around 5.57%, more than MUB's 3.19% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MYD BlackRock MuniYield Fund	5.57%	6.23%	6.12%	4.29%	5.68%	4.53%	4.68%	4.66%	5.93%	5.85%	6.30%	6.27%
MUB iShares National AMT-Free Muni Bond ETF	3.19%	3.14%	3.01%	2.65%	2.11%	1.81%	2.11%	2.42%	2.46%	2.26%	2.21%	2.51%

Drawdowns

Drawdown Indicators

	MYD	MUB	Difference
Max Drawdown Largest peak-to-trough decline	—	-13.68%	—
Max Drawdown (1Y) Largest decline over 1 year	—	-3.30%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-11.88%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-13.68%	—
Current Drawdown Current decline from peak	—	-2.28%	—
Average Drawdown Average peak-to-trough decline	—	-2.24%	—
Ulcer Index Depth and duration of drawdowns from previous peaks	—	1.03%	—

Volatility

Volatility by Period

	MYD	MUB	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	1.53%	—
Volatility (6M) Calculated over the trailing 6-month period	—	2.03%	—
Volatility (1Y) Calculated over the trailing 1-year period	—	4.14%	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	—	4.04%	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	—	4.91%	—