SUB
SUB 1-star rating from Upturn Advisory

iShares Short-Term National Muni Bond ETF (SUB)

iShares Short-Term National Muni Bond ETF (SUB) 1-star rating from Upturn Advisory
$106.56
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Upturn Advisory Summary

11/11/2025: SUB (1-star) is currently NOT-A-BUY. Pass it for now.

Upturn Star Rating

Upturn 1 star rating for performance

Not Recommended Performance

These Stocks/ETFs, based on Upturn Advisory, consistently fall short of market performance, signaling caution before investing.

Analysis of Past Performance

Type ETF
Historic Profit 2.59%
Avg. Invested days 42
Today’s Advisory PASS
Upturn Star Rating upturn star rating icon
Upturn Advisory Performance Upturn Advisory Performance icon 3.0
ETF Returns Performance Upturn Returns Performance icon 1.0
Upturn Profits based on simulation icon Profits based on simulation
Upturn last close icon Last Close 11/11/2025

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

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iShares Short-Term National Muni Bond ETF

iShares Short-Term National Muni Bond ETF(SUB) company logo displayed in Upturn AI summary

ETF Overview

overview logo 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 primarily focuses on short-term municipal bonds offering tax-exempt income and is suitable for investors looking for a relatively conservative fixed income option.

Reputation and Reliability logo Reputation and Reliability

BlackRock, the issuer, is one of the world's largest asset managers with a strong reputation and track record.

Leadership icon representing strong management expertise and executive team Management Expertise

BlackRock has a highly experienced and reputable management team overseeing their ETF products, including SUB.

Investment Objective

Icon representing investment goals and financial objectives Goal

The investment goal of SUB is 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.

Investment Approach and Strategy

Strategy: SUB aims to track the ICE Short Maturity AMT-Free US National Municipal Index.

Composition The ETF primarily holds a diversified portfolio of short-term, investment-grade municipal bonds issued by states and local governments across the U.S.

Market Position

Market Share: SUB holds a significant market share in the short-term municipal bond ETF sector.

Total Net Assets (AUM): 4321000000

Competitors

Key Competitors logo Key Competitors

  • Invesco VRDO Tax-Free Weekly ETF (PVI)
  • VanEck Short Muni ETF (SMB)
  • SPDR Nuveen Bloomberg Short Term Municipal Bond ETF (SHM)

Competitive Landscape

The short-term municipal bond ETF market is competitive, with several issuers offering similar products. SUB benefits from BlackRock's brand recognition and large AUM, which can lead to tighter spreads and greater liquidity. However, other ETFs may have slightly different index methodologies or expense ratios, which could appeal to different investors. SUB's advantage lies in its established presence and liquidity; its disadvantage could be a slightly higher expense ratio compared to some competitors.

Financial Performance

Historical Performance: Historical performance data needs to be obtained from financial data providers and varies over time. A review of the ETF's performance over 1, 3, 5, and 10-year periods would be necessary to understand its track record.

Benchmark Comparison: SUB's performance should be compared to the ICE Short Maturity AMT-Free US National Municipal Index to gauge its tracking effectiveness.

Expense Ratio: 0.07

Liquidity

Average Trading Volume

SUB exhibits relatively high liquidity due to its large AUM, resulting in a robust average trading volume.

Bid-Ask Spread

The bid-ask spread for SUB is generally tight, reflecting its high liquidity and making it cost-effective to trade.

Market Dynamics

Market Environment Factors

Economic indicators such as interest rates, inflation expectations, and the overall health of the municipal bond market significantly affect SUB. Changes in tax laws and credit ratings of municipal issuers also play a crucial role.

Growth Trajectory

The growth trajectory of SUB is linked to investor demand for tax-exempt income and short-term fixed income exposure. Shifts in interest rate expectations can also influence its asset growth as investors reallocate assets.

Moat and Competitive Advantages

Competitive Edge

SUB's competitive edge comes from BlackRock's scale and brand recognition, leading to high AUM and liquidity. It offers a low-cost way to access a diversified portfolio of short-term municipal bonds. Its large AUM allows for efficient trading and tighter spreads. SUB's focused strategy on short-term municipals and reputable management gives it an advantage against competitors.

Risk Analysis

Volatility

SUB's historical volatility is generally low due to the short-term nature and investment-grade quality of its holdings.

Market Risk

The primary market risks associated with SUB include interest rate risk (although mitigated by the short maturities) and credit risk from municipal issuers, although the ETF invests in investment-grade bonds.

Investor Profile

Ideal Investor Profile

The ideal investor for SUB is a risk-averse individual seeking tax-exempt income and capital preservation. Retirees, conservative investors, and those in high tax brackets may find it appealing.

Market Risk

SUB is best suited for long-term investors looking for a stable, tax-advantaged fixed income component in their portfolio.

Summary

The iShares Short-Term National Muni Bond ETF (SUB) offers a low-cost and liquid way to access the short-term municipal bond market. Benefiting from BlackRocku2019s scale and brand recognition, SUB provides a tax-efficient option for risk-averse investors looking for stable income. However, its returns are tied to the performance of short-term municipal bonds and it's subject to interest rate and credit risk. Investors should carefully consider its suitability in relation to their investment objectives and risk tolerance.

Similar ETFs

Sources and Disclaimers

Data Sources:

  • iShares website
  • Bloomberg
  • Morningstar

Disclaimers:

The information provided is for informational purposes only and should not be considered investment advice. Past performance is not indicative of future results. Consult with a qualified financial advisor before making any investment decisions.

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Information icon for Upturn AI Summarization data freshness disclaimer Summarized information shown could be a few years old and not current.

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About iShares Short-Term National Muni Bond ETF

Exchange NYSE ARCA
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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.