FSMB — First Trust Short Duration Managed Municipal ETF
Data updated: 2026-06-23
FSMB — First Trust Short Duration Managed Municipal ETF data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Short Municipal - National Bond · $599.11M AUM · 0.55% expense ratio · 4.3% 1-yr return. From SEC regulatory filings.
FSMB Fund Overview
FSMB — First Trust Short Duration Managed Municipal ETF is a US ETF managed by First Trust Exchange-Traded Fund III, categorised as Short Municipal - National Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US ETF
- Manager: First Trust Exchange-Traded Fund III
- Category: Short Municipal - National Bond
- Assets under management: $599.11M
- 1-year return: 4.3%
- Ticker: FSMB
- SEC CIK: 0001424212
- SEC series ID: S000063445
- Share class ID: C000205581
FSMB Holdings
Top 10 holdings of First Trust Short Duration Managed Municipal ETF by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Southeast Energy Authority (al) | 1.06% |
| Utah (ut), County Of | 0.83% |
| Ohio Air Quality Development Authority (oh) | 0.80% |
| Public Finance Authority (wi) | 0.71% |
| St John Baptist Parish La | 0.67% |
| Main Str Energy, Inc. Ga | 0.65% |
| Palm Beach County Health Facilities Authority (fl) | 0.62% |
| New York City Municipal Water Finance Authority (ny) | 0.58% |
| Public Energy Authority Of Kentucky (ky) | 0.58% |
| Black Belt Energy Gas Dist Ala | 0.57% |
FSMB Portfolio Allocation
Asset-class allocation of First Trust Short Duration Managed Municipal ETF by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 98.7% |
FSMB Performance
Total returns for FSMB (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 0.8% |
| 1 year | 4.3% |
| 3 years (annualised) | 3.2% |
| 5 years (annualised) | 1.5% |
FSMB Risk Information
Risk metrics for FSMB, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 1.7%
FSMB Costs and Fees
FSMB costs about $55 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.55%
- Gross expense ratio: 0.55%
- Portfolio turnover: 45%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
FSMB Cashflows
Over the 12 months to 2026-04, First Trust Short Duration Managed Municipal ETF had net inflows of $147.44M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-04 | $13.99M |
| 2026-03 | $19.09M |
| 2026-02 | $32.31M |
| 2026-01 | $24.10M |
| 2025-12 | $13.02M |
| 2025-11 | $8.02M |
FSMB Debt Constituents
Largest debt holdings of First Trust Short Duration Managed Municipal ETF by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| Southeast Energy Authority (al) | 1.06% |
| Utah (ut), County Of | 0.83% |
| Ohio Air Quality Development Authority (oh) | 0.80% |
| Public Finance Authority (wi) | 0.71% |
| St John Baptist Parish La | 0.67% |
| Main Str Energy, Inc. Ga | 0.65% |
| Palm Beach County Health Facilities Authority (fl) | 0.62% |
| New York City Municipal Water Finance Authority (ny) | 0.58% |
| Public Energy Authority Of Kentucky (ky) | 0.58% |
| Black Belt Energy Gas Dist Ala | 0.57% |
FSMB Prospectus and SEC Filings
Official First Trust Short Duration Managed Municipal ETF filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Short Municipal - National Bond funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.