BlackRock Municipal Series Trust

BlackRock Municipal Series Trust (CIK 799113) is an SEC-registered fund company with 1 reporting fund series and $3.4B in net assets as of 2026-05-31.

Registrant

Fund series (1)

SeriesNet assets
BlackRock Strategic Municipal Opportunities Fund$3.4B

Largest reported holdings (across all series)

HoldingValue
United States Treasury$249.6M
BlackRock Liquidity Funds$53.5M
Port Authority of New York & New Jersey$40.7M
Energy Southeast A Cooperative District$40.4M
Commonwealth of Puerto Rico$33.5M
Southeast Energy Authority A Cooperative District$33.4M
Black Belt Energy Gas District$32.9M
Energy Southeast A Cooperative District$32.5M
Omaha Public Power District$29.8M
Kansas Development Finance Authority$27.7M
Black Belt Energy Gas District$27.0M
School District of Broward County/FL$26.8M
Arkansas Development Finance Authority$24.9M
Triborough Bridge & Tunnel Authority$24.9M
California Infrastructure & Economic Development Bank$23.7M

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