SMDYX — Western Asset Short Duration Municipal Income Fund
Data updated: 2026-07-22
SMDYX — Western Asset Short Duration Municipal Income Fund. Intermediate Municipal - National Bond. Holdings, fees, performance and SEC filings.
SMDYX Fund Overview
SMDYX — Western Asset Short Duration Municipal Income Fund is a US mutual fund managed by Legg Mason Partners Income Trust, categorised as Intermediate Municipal - National Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: Legg Mason Partners Income Trust
- Category: Intermediate Municipal - National Bond
- Assets under management: $274.92M
- 1-year return: 4.2%
- Ticker: SMDYX
- SEC CIK: 0000764624
- SEC series ID: S000016249
- Share class ID: C000044918
SMDYX Holdings
Top 10 holdings of Western Asset Short Duration Municipal Income Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Indianapolis Local Public Improvement Bond Bank (in) | 2.68% |
| Connecticut (ct), State Of | 2.64% |
| Denver (co), City And County Of | 2.47% |
| Triborough Brdg & Tunl Auth N Y | 2.41% |
| New Jersey Transportation Trust Fund Authority (nj) | 2.02% |
| Long Is Pwr Auth N Y | 1.89% |
| San Francisco City And County Airport Commission (ca) | 1.89% |
| New Jersey Economic Development Authority (nj) | 1.86% |
| Marathon Oil Corp. | 1.80% |
| Los Angeles City Department Of Airports (ca) | 1.77% |
SMDYX Portfolio Allocation
Asset-class allocation of Western Asset Short Duration Municipal Income Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 99.4% |
SMDYX Performance
Total returns for SMDYX (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 1.0% |
| 1 year | 4.2% |
| 3 years (annualised) | 3.6% |
| 5 years (annualised) | 1.6% |
SMDYX Risk Information
Risk metrics for SMDYX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 1.6%
SMDYX Costs and Fees
SMDYX costs about $40 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.40%
- Gross expense ratio: 0.47%
- Portfolio turnover: 25%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
SMDYX Cashflows
Over the 12 months to 2026-05, Western Asset Short Duration Municipal Income Fund had net outflows of $41.77M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-05 | −$10.48M |
| 2026-04 | −$474.26K |
| 2026-03 | −$2.20M |
| 2026-02 | −$3.07M |
| 2026-01 | −$2.24M |
| 2025-12 | −$3.21M |
SMDYX Debt Constituents
Largest debt holdings of Western Asset Short Duration Municipal Income Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| Indianapolis Local Public Improvement Bond Bank (in) | 2.68% |
| Connecticut (ct), State Of | 2.64% |
| Denver (co), City And County Of | 2.47% |
| Triborough Brdg & Tunl Auth N Y | 2.41% |
| New Jersey Transportation Trust Fund Authority (nj) | 2.02% |
| Long Is Pwr Auth N Y | 1.89% |
| San Francisco City And County Airport Commission (ca) | 1.89% |
| New Jersey Economic Development Authority (nj) | 1.86% |
| Marathon Oil Corp. | 1.80% |
| Los Angeles City Department Of Airports (ca) | 1.77% |
SMDYX Prospectus and SEC Filings
Official Western Asset Short Duration Municipal Income Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2026-06-23
- Prospectus (485BPOS) — filed 2025-06-24
- Prospectus (485BPOS) — filed 2024-06-25
- Portfolio holdings (N-PORT) — filed 2026-07-22
- Portfolio holdings (N-PORT) — filed 2026-04-24
- Portfolio holdings (N-PORT) — filed 2026-01-26
- Annual census (N-CEN) — filed 2026-05-06
- Annual census (N-CEN) — filed 2025-05-07
Related Funds
Other Intermediate 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.