SHM vs. SUB

Last updated Apr 1, 2026

Compare and contrast key facts about SPDR Nuveen Bloomberg Barclays Short Term Municipal Bond ETF (SHM) and iShares Short-Term National Muni Bond ETF (SUB).

SHM and SUB are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. SHM is a passively managed fund by State Street that tracks the performance of the Bloomberg Municipal Managed Money Short. It was launched on Oct 10, 2007. SUB is a passively managed fund by iShares that tracks the performance of the ICE Short Maturity AMT-Free US National Municipal Index - Benchmark TR Gross. It was launched on Nov 5, 2008. Both SHM and SUB are passive ETFs, meaning that they are not actively managed but aim to replicate the performance of the underlying index as closely as possible.

Performance

SHM vs. SUB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in SPDR Nuveen Bloomberg Barclays Short Term Municipal Bond ETF (SHM) and iShares Short-Term National Muni Bond ETF (SUB). The values are adjusted to include any dividend payments, if applicable.

SHM vs. SUB - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SHM SPDR Nuveen Bloomberg Barclays Short Term Municipal Bond ETF	0.11%	3.95%	1.22%	2.92%	-3.82%	-0.37%	2.65%	3.64%	1.56%	0.99%
SUB iShares Short-Term National Muni Bond ETF	0.23%	3.64%	2.17%	2.91%	-2.05%	0.03%	2.51%	2.93%	1.85%	0.75%

Returns By Period

In the year-to-date period, SHM achieves a 0.11% return, which is significantly lower than SUB's 0.23% return. Over the past 10 years, SHM has underperformed SUB with an annualized return of 1.16%, while SUB has yielded a comparatively higher 1.46% annualized return.

SHM

• 1D: 0.10%
• 1M: -1.01%
• YTD: 0.11%
• 6M: 0.53%
• 1Y: 3.17%
• 3Y*: 2.26%
• 5Y*: 0.83%
• 10Y*: 1.16%

SUB

• 1D: 0.04%
• 1M: -0.66%
• YTD: 0.23%
• 6M: 1.01%
• 1Y: 3.37%
• 3Y*: 2.75%
• 5Y*: 1.39%
• 10Y*: 1.46%

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

SHM vs. SUB - Expense Ratio Comparison

SHM has a 0.20% expense ratio, which is higher than SUB's 0.07% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

SHM

SPDR Nuveen Bloomberg Barclays Short Term Municipal Bond ETF

SUB

iShares Short-Term National Muni Bond ETF

Return for Risk

SHM vs. SUB — Risk / Return Rank

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

SHM

SHM Risk / Return Rank: 81
SHM Sharpe Ratio Rank: 86
SHM Sortino Ratio Rank: 84
SHM Omega Ratio Rank: 93
SHM Calmar Ratio Rank: 77
SHM Martin Ratio Rank: 64

SUB

SUB Risk / Return Rank: 92
SUB Sharpe Ratio Rank: 94
SUB Sortino Ratio Rank: 92
SUB Omega Ratio Rank: 97
SUB Calmar Ratio Rank: 89
SUB Martin Ratio Rank: 88

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.

SHM vs. SUB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SPDR Nuveen Bloomberg Barclays Short Term Municipal Bond ETF (SHM) and iShares Short-Term National Muni Bond ETF (SUB). 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.

	SHM	SUB	Difference
Sharpe ratio Return per unit of total volatility	1.74	2.25	-0.51
Sortino ratio Return per unit of downside risk	2.20	2.71	-0.51
Omega ratio Gain probability vs. loss probability	1.42	1.61	-0.19
Calmar ratio Return relative to maximum drawdown	1.97	2.82	-0.85
Martin ratio Return relative to average drawdown	6.17	10.30	-4.13
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SHM vs. SUB - Sharpe Ratio Comparison

The current SHM Sharpe Ratio is 1.74, which is comparable to the SUB Sharpe Ratio of 2.25. The chart below compares the historical Sharpe Ratios of SHM and SUB, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	SHM	SUB	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.74	2.25	-0.51
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.41	0.85	-0.45
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.35	0.56	-0.21
Sharpe Ratio (All Time) Calculated using the full available price history	0.47	0.42	+0.05

Correlation

The correlation between SHM and SUB is 0.32, 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

SHM vs. SUB - Dividend Comparison

SHM's dividend yield for the trailing twelve months is around 2.64%, more than SUB's 2.47% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
SHM SPDR Nuveen Bloomberg Barclays Short Term Municipal Bond ETF	2.64%	2.61%	2.06%	1.15%	0.69%	0.86%	1.24%	1.40%	1.23%	1.06%	0.94%	0.92%
SUB iShares Short-Term National Muni Bond ETF	2.47%	2.42%	2.10%	1.73%	0.86%	0.72%	1.23%	1.58%	1.32%	0.95%	0.75%	0.77%

Drawdowns

SHM vs. SUB - Drawdown Comparison

The maximum SHM drawdown since its inception was -11.61%, which is greater than SUB's maximum drawdown of -9.46%. Use the drawdown chart below to compare losses from any high point for SHM and SUB.

Drawdown Indicators

	SHM	SUB	Difference
Max Drawdown Largest peak-to-trough decline	-11.61%	-9.46%	-2.15%
Max Drawdown (1Y) Largest decline over 1 year	-1.67%	-1.23%	-0.44%
Max Drawdown (5Y) Largest decline over 5 years	-6.67%	-4.35%	-2.32%
Max Drawdown (10Y) Largest decline over 10 years	-11.61%	-9.46%	-2.15%
Current Drawdown Current decline from peak	-1.03%	-0.66%	-0.37%
Average Drawdown Average peak-to-trough decline	-0.97%	-0.92%	-0.05%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.53%	0.34%	+0.19%

Volatility

SHM vs. SUB - Volatility Comparison

SPDR Nuveen Bloomberg Barclays Short Term Municipal Bond ETF (SHM) and iShares Short-Term National Muni Bond ETF (SUB) have volatilities of 0.53% and 0.53%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SHM	SUB	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.53%	0.53%	0.00%
Volatility (6M) Calculated over the trailing 6-month period	0.89%	0.80%	+0.09%
Volatility (1Y) Calculated over the trailing 1-year period	1.83%	1.51%	+0.32%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.07%	1.64%	+0.43%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.31%	2.59%	+0.72%