BlackRock Strategic Municipal Opportunities Fund
Data updated: 2026-07-24
C000011339 — BlackRock Strategic Municipal Opportunities Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Long Municipal - National Bond · $3.35B AUM · 0.82% expense ratio · 3.2% 1-yr return. From SEC regulatory filings.
C000011339 Fund Overview
BlackRock Strategic Municipal Opportunities Fund is a US mutual fund managed by BlackRock Municipal Series Trust, categorised as Long 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: BlackRock Municipal Series Trust
- Category: Long Municipal - National Bond
- Assets under management: $3.35B
- 1-year return: 3.2%
- SEC CIK: 0000799113
- SEC series ID: S000004053
- Share class ID: C000011339
C000011339 Holdings
Top 10 holdings of BlackRock Strategic Municipal Opportunities Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| United States Treasury | 7.44% |
| BlackRock Liquidity Funds | 1.60% |
| Port Authority of New York & New Jersey | 1.21% |
| Energy Southeast A Cooperative District | 1.20% |
| Commonwealth of Puerto Rico | 1.00% |
| Southeast Energy Authority A Cooperative District | 0.99% |
| Black Belt Energy Gas District | 0.98% |
| Energy Southeast A Cooperative District | 0.97% |
| Omaha Public Power District | 0.89% |
| Kansas Development Finance Authority | 0.83% |
C000011339 Portfolio Allocation
Asset-class allocation of BlackRock Strategic Municipal Opportunities Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 98.4% |
| Cash & Equivalents | 9.0% |
| Securitized | 0.2% |
| Equity | 0.1% |
C000011339 Performance
Total returns for C000011339 (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 1.9% |
| 1 year | 3.2% |
| 3 years (annualised) | 4.0% |
| 5 years (annualised) | 1.0% |
C000011339 Risk Information
Risk metrics for C000011339, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 4.5%
C000011339 Costs and Fees
C000011339 costs about $82 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.82%
- Gross expense ratio: 0.87%
- Portfolio turnover: 66%
- Brokerage commissions: 0.12 bps of average net assets (SEC N-CEN)
C000011339 Cashflows
Over the 12 months to 2026-02, BlackRock Strategic Municipal Opportunities Fund had net outflows of $403.26M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-02 | $11.20M |
| 2026-01 | $43.52M |
| 2025-12 | −$127.46M |
| 2025-11 | −$27.02M |
| 2025-10 | −$49.22M |
| 2025-09 | −$22.62M |
C000011339 Debt Constituents
Largest debt holdings of BlackRock Strategic Municipal Opportunities Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| Port Authority of New York & New Jersey | 1.21% |
| Energy Southeast A Cooperative District | 1.20% |
| Commonwealth of Puerto Rico | 1.00% |
| Southeast Energy Authority A Cooperative District | 0.99% |
| Black Belt Energy Gas District | 0.98% |
| Energy Southeast A Cooperative District | 0.97% |
| Omaha Public Power District | 0.89% |
| Kansas Development Finance Authority | 0.83% |
| Black Belt Energy Gas District | 0.81% |
| School District of Broward County/FL | 0.80% |
C000011339 Prospectus and SEC Filings
Official BlackRock Strategic Municipal Opportunities Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Long 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.