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iShares Short-Term National Muni Bond ETF (SUB)



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Upturn Advisory Summary
07/30/2025: SUB (1-star) is currently NOT-A-BUY. Pass it for now.
Analysis of Past Performance
Type ETF | Historic Profit 2.6% | Avg. Invested days 43 | Today’s Advisory PASS |
Upturn Star Rating ![]() ![]() | Upturn Advisory Performance ![]() | ETF Returns Performance ![]() |
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Key Highlights
Volume (30-day avg) - | Beta 0.32 | 52 Weeks Range 102.24 - 106.31 | Updated Date 06/29/2025 |
52 Weeks Range 102.24 - 106.31 | Updated Date 06/29/2025 |
Upturn AI SWOT
iShares Short-Term National Muni Bond ETF
ETF Overview
Overview
The iShares Short-Term National Muni Bond ETF (SUB) seeks to track the investment results of an index composed of investment-grade U.S. municipal bonds with remaining maturities between one month and five years. It focuses on providing current income, with an asset allocation primarily in municipal bonds. The investment strategy involves passively tracking the underlying index.
Reputation and Reliability
BlackRock is a reputable and reliable issuer, known for its extensive experience and wide range of ETF offerings.
Management Expertise
BlackRock has a large and experienced management team overseeing its ETF products, contributing to its stability and performance.
Investment Objective
Goal
The investment goal of SUB is to provide current income exempt from federal income tax by investing in short-term municipal bonds.
Investment Approach and Strategy
Strategy: SUB aims to track the ICE AMT-Free Core U.S. Short Term Municipal Index.
Composition The ETF holds primarily municipal bonds with short-term maturities.
Market Position
Market Share: SUB has a significant market share in the short-term municipal bond ETF sector.
Total Net Assets (AUM): 784134797
Competitors
Key Competitors
- Invesco National AMT-Free Municipal Bond ETF (PZA)
- Vanguard Short-Term Tax-Exempt ETF (VTES)
- SPDR Nuveen Bloomberg Short Term Municipal Bond ETF (SHM)
Competitive Landscape
The competitive landscape includes several ETFs offering exposure to the short-term municipal bond market. SUB benefits from BlackRock's brand recognition and typically tighter spreads, but competitors like Vanguard offer lower expense ratios. VTES is a large and well-established competitor, while PZA and SHM provide alternative exposures within the same asset class. SUBu2019s success hinges on balancing its fund management efficiency and market coverage.
Financial Performance
Historical Performance: Historical performance data needs to be obtained from financial data providers.
Benchmark Comparison: Benchmark comparison requires performance data against the ICE AMT-Free Core U.S. Short Term Municipal Index.
Expense Ratio: 0.07
Liquidity
Average Trading Volume
SUB's average trading volume indicates moderate liquidity, facilitating relatively easy trading for most investors.
Bid-Ask Spread
The bid-ask spread is generally tight, reflecting the fund's liquidity and efficiency.
Market Dynamics
Market Environment Factors
Economic indicators, interest rate movements, and municipal bond market conditions influence SUB's performance.
Growth Trajectory
Growth trends depend on investor demand for short-term, tax-exempt income and the overall health of the municipal bond market. There have been no significant changes to strategy or holdings.
Moat and Competitive Advantages
Competitive Edge
SUBu2019s competitive edge comes from its association with BlackRock, a trusted brand known for its robust ETF management. It offers targeted exposure to short-term municipal bonds, appealing to investors seeking tax-exempt income with lower interest rate risk. The fund's expense ratio is competitive, and BlackRock's expertise in fixed income markets contributes to its consistent performance. SUB benefits from a well-defined investment strategy and efficient execution.
Risk Analysis
Volatility
SUB exhibits low volatility due to the short-term nature of its holdings.
Market Risk
Market risk includes interest rate risk (though mitigated by the short duration), credit risk of municipal issuers, and potential changes in tax laws affecting the attractiveness of municipal bonds.
Investor Profile
Ideal Investor Profile
The ideal investor for SUB is a risk-averse individual seeking tax-exempt income and capital preservation, particularly those in higher tax brackets.
Market Risk
SUB is suitable for long-term investors and passive index followers seeking stable, tax-advantaged returns. It is less appropriate for active traders seeking high growth.
Summary
The iShares Short-Term National Muni Bond ETF (SUB) offers targeted exposure to short-term municipal bonds, providing tax-exempt income with relatively low volatility. Its appeal lies in its affiliation with BlackRock, its focus on shorter maturities, and its competitive expense ratio. The ETF suits risk-averse investors seeking stable returns and tax advantages in their fixed-income portfolio. While its growth potential is limited, its stability and tax efficiency make it a valuable option for appropriate investors. SUB is most suited for buy-and-hold investors looking for current income.
Peer Comparison
Sources and Disclaimers
Data Sources:
- iShares.com
- BlackRock.com
- Morningstar.com
- ETFdb.com
Disclaimers:
The information provided is for informational purposes only and should not be considered investment advice. Market conditions are subject to change. Past performance is not indicative of future results. Consult a financial advisor before making any investment decisions.
AI Summarization is directionally correct and might not be accurate.
Summarized information shown could be a few years old and not current.
Fundamental Rating based on AI could be based on old data.
AI-generated summaries may have inaccuracies (hallucinations). Please verify the information before taking action.
About iShares Short-Term National Muni Bond ETF
Exchange NYSE ARCA | Headquaters - | ||
IPO Launch date - | CEO - | ||
Sector - | Industry - | Full time employees - | Website |
Full time employees - | Website |
The fund will invest at least 80% of its assets in the component securities of the underlying index, and the fund will invest at least 90% of its assets in fixed income securities of the types included in the underlying index that the advisor believes will help the fund track the underlying index. The underlying index includes municipal bonds, the interest of which is exempt from Federal income taxes and not subject to alternative minimum tax.

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