What is the $ASTM ETF? - A Comprehensive Guide to Returns, Expense Ratios, Holdings, and Alternative ETFs
The Allspring Strategic Municipal Bond Fund ETF (ASTM) is an active ETF that primarily invests in U.S. municipal bonds to seek interest income exempt from federal income tax. This summary covers its monthly dividend cycle, intermediate duration management, and risk factors for tax-advantaged investors.
SubscribeWhat is the Allspring Strategic Municipal Bond Fund ETF?
This is an active ETF that primarily invests in U.S. municipal bonds, using the Bloomberg Short-Term/Intermediate Municipal Bond Index as a benchmark. The management team seeks after-tax returns by adjusting security selection, sector rotation, duration, and yield curve positioning from a relative value perspective.
It is suitable for investors looking to diversify into intermediate-maturity municipal bonds while reducing federal income tax burdens. It is better suited for asset allocation intended for a certain holding period rather than short-term funds.
This is an actively managed ETF operated by Allspring Global Investments.
How to invest in the Allspring Strategic Municipal Bond Fund ETF?
| Item | Details |
|---|---|
| Benchmark Index | Bloomberg Short-Term/Intermediate Municipal Bond Index (Active Benchmark) |
| Management Style | Active (Relative Value Strategy) |
| Rebalancing Frequency | Ad hoc adjustments without periodic rebalancing |
| Dividend/Distribution Frequency | Monthly distribution (Capital gains are annual) |
| Expense Ratio | 0.42% |
| Manager | Allspring Global Investments |
The fund aims for low-tax interest income by broadly holding bonds with different credit ratings and maturities, centered on U.S. municipal bonds. Based on relative value assessments, it frequently adjusts security selection, sector allocation, duration, and yield curve positioning, and may include lower-rated bonds when necessary.
- Relative value analysis utilizing an analyst organization specialized in municipal bonds
- Management that simultaneously adjusts securities, sectors, duration, and the yield curve
- A structure that shares a portfolio similar to mutual fund classes
Allspring Strategic Municipal Bond Fund ETF Size and Cost (AUM·Management Fee)
Assets Under Management (AUM) is $0.5M(approx. ₩700M), and the Expense Ratio is 0.42% per annum.
As a product in its early stages of listing, bid-ask spreads may be wide and trading volume may be thin. The trading environment is structured to improve as participation from authorized distributors increases, and liquidity differences should be considered when comparing it to larger municipal bond ETFs.
Allspring Strategic Municipal Bond Fund ETF Performance and Trends
1-Year Price Performance
Dividend & Yield
52-Week Price Range
Peer Comparison ETFs| Ticker | Name | Price | Change | AUM | Total Expense Ratio | Dividend Yield | 1Y |
|---|---|---|---|---|---|---|---|
 MUB | iShares National Muni Bond ETF | $103.90 | -0.3% | $54.5B | 0.05% | 3.3% | -3.3% |
 VTEB | Vanguard Tax-Exempt Bond ETF | $48.73 | -0.3% | $53.1B | 0.03% | 3.49% | -3.5% |
 SUB | iShares Short-Term National Muni Bond ETF | $105.84 | -0.2% | $13.3B | 0.07% | 2.58% | -0.7% |
 JMUB | JPMorgan Municipal ETF | $48.93 | -0.3% | $9.0B | 0.18% | 3.83% | -3.4% |
 JMST | JPMorgan Ultra-Short Municipal Income ETF | $50.81 | -0.3% | $8.4B | 0.18% | 2.55% | -0.1% |
Top Holdings| Ticker | Name | Weight | Price | Change | Market Cap | P/E | Dividend Yield |
|---|---|---|---|---|---|---|---|
 MAIN | Main Street Capital Corp | 0.02% | $56.30 | +1.9% | $5.3B | 11.3 | 7.38% |
 CPBI | Central Plains Bancshares Inc | 0.01% | $20.75 | +0.6% | $86.6M | 17.7 | - |
 NJR | New Jersey Resources Corp | 0.01% | $54.18 | +1.8% | $5.5B | 15.0 | 3.56% |
 NYT | New York Times Co | 0.02% | $69.96 | -0.3% | $11.3B | 29.2 | 1.28% |
ASTM Investor Checkpoints
When selecting a municipal bond ETF, you should consider the scope of tax benefits, maturity and duration, credit composition, and trading liquidity. As this is a newly listed product, it is safer to check the trading conditions and distribution schedule in advance.
| Checkpoint | Details to Verify | Current Status |
|---|---|---|
| 💵 Fees | Difference between expense ratio and net expense ratio | Disclosure review required |
| 📅 Distribution | Monthly distribution schedule and source of funds | Monthly payments |
| 💧 Liquidity | Bid-ask spread and average daily trading volume | Early stage of formation |
| 🧾 Taxation | Federal, state, and local taxation and Alternative Minimum Tax | Federal exempt, state-level verification required |
If interest rates rise, the prices of medium-term municipal bonds may fall, potentially resulting in principal loss. The inclusion of lower-rated bonds and the deterioration of local government finances increase credit risk, and in the early stages of listing, the market price may deviate from the Net Asset Value (NAV).
This product is suitable for investors seeking active exposure to municipal bonds for tax-saving purposes. However, as the scale and trading volume are not yet large, you must check the bid-ask spread at the time of trading, and please make decisions by comparing the maturity and credit composition with your own capital plans.
SubscribeDisclaimer: This content is for informational purposes only and does not constitute investment advice. All investment responsibility lies with the investor.
This article reflects information as of October 31, 2026.
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