MYD vs. ATOIX

Last updated Apr 1, 2026

Compare and contrast key facts about BlackRock MuniYield Fund (MYD) and abrdn Ultra Short Municipal Income Fund (ATOIX).

MYD is an actively managed fund by BlackRock. It was launched on Nov 29, 1991. ATOIX is managed by Aberdeen. It was launched on Dec 4, 2002.

Performance

MYD vs. ATOIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in BlackRock MuniYield Fund (MYD) and abrdn Ultra Short Municipal Income Fund (ATOIX). The values are adjusted to include any dividend payments, if applicable.

MYD vs. ATOIX - 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%
ATOIX abrdn Ultra Short Municipal Income Fund	0.35%	3.33%	3.14%	3.27%	0.87%	-0.04%	0.88%	1.40%	1.54%	2.24%

Returns By Period

MYD

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

ATOIX

• 1D: 0.00%
• 1M: -0.10%
• YTD: 0.35%
• 6M: 1.37%
• 1Y: 2.95%
• 3Y*: 3.07%
• 5Y*: 2.17%
• 10Y*: 1.73%

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

MYD vs. ATOIX - Expense Ratio Comparison

MYD has a 2.07% expense ratio, which is higher than ATOIX's 0.44% expense ratio.

MYD

BlackRock MuniYield Fund

ATOIX

abrdn Ultra Short Municipal Income Fund

Return for Risk

MYD vs. ATOIX — Risk / Return Rank

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

ATOIX

ATOIX Risk / Return Rank: 100
ATOIX Sharpe Ratio Rank: 99
ATOIX Sortino Ratio Rank: 100
ATOIX Omega Ratio Rank: 100
ATOIX Calmar Ratio Rank: 100
ATOIX Martin Ratio Rank: 100

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. ATOIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for BlackRock MuniYield Fund (MYD) and abrdn Ultra Short Municipal Income Fund (ATOIX). 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	ATOIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	3.51	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	2.69	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	2.24	—
Sharpe Ratio (All Time) Calculated using the full available price history	—	2.45	—

Correlation

The correlation between MYD and ATOIX is 0.09, 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. ATOIX - Dividend Comparison

MYD's dividend yield for the trailing twelve months is around 5.57%, more than ATOIX's 2.90% 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%
ATOIX abrdn Ultra Short Municipal Income Fund	2.90%	3.27%	3.09%	3.02%	1.07%	0.06%	0.88%	1.39%	1.42%	2.20%	0.61%	0.52%

Drawdowns

Drawdown Indicators

	MYD	ATOIX	Difference
Max Drawdown Largest peak-to-trough decline	—	-1.46%	—
Max Drawdown (1Y) Largest decline over 1 year	—	-0.10%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-0.37%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-0.43%	—
Current Drawdown Current decline from peak	—	-0.10%	—
Average Drawdown Average peak-to-trough decline	—	-0.06%	—
Ulcer Index Depth and duration of drawdowns from previous peaks	—	0.03%	—

Volatility

Volatility by Period

	MYD	ATOIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	0.10%	—
Volatility (6M) Calculated over the trailing 6-month period	—	0.65%	—
Volatility (1Y) Calculated over the trailing 1-year period	—	0.92%	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	—	0.81%	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	—	0.78%	—