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Holdings (Monthly) Guide ↗

BlackRock California Municipal Opportunities Fund

· BlackRock California Municipal Series Trust
Monthly Holdings $2.5B AUM 17 positions Period May 2026 Filed Jul 24, 2026 EDGAR ↗ ← All Funds
All 63 New 5 Added 17 Reduced 29 Exited · May 2026 vs Feb 2026
# Name Ticker Since Shares Shares Δ Value Val Δ% % Port Cat
1 California Community Choice Financing Authority 13013JFS0 Feb 2026 17,450,000 -7,565,000 $17.9M -32.0% 0.73% DBT
2 San Francisco City & County Airport Comm-San Francisco International Airport 79766DXZ7 Feb 2026 16,245,000 -1,000,000 $17.2M -7.2% 0.70% DBT
3 Golden State Tobacco Securitization Corp 38122ND90 Feb 2026 15,440,000 -3,000,000 $15.4M -16.0% 0.63% DBT
4 California State University 13077DEX6 Feb 2026 13,000,000 -5,000,000 $13.5M -28.3% 0.55% DBT
5 East Bay Municipal Utility District Water System Revenue 271014T44 Feb 2026 11,600,000 -1,000,000 $12.3M -8.7% 0.50% DBT
6 San Francisco City & County Airport Comm-San Francisco International Airport 79766DLF4 Feb 2026 11,440,000 -5,000,000 $11.6M -31.0% 0.48% DBT
7 BlackRock Liquidity Funds 09248U841 Feb 2026 11,429,226 -42,814,417 $11.4M -78.9% 0.47% STIV
8 Tamalpais Union High School District 874857LR4 Feb 2026 9,155,000 -845,000 $9.2M -8.8% 0.38% DBT
9 Santa Clara County Financing Authority 801577NK9 Feb 2026 9,115,000 -885,000 $9.1M -9.1% 0.37% DBT
10 West Valley-Mission Community College District 95640HJL3 Feb 2026 7,945,000 -400,000 $7.9M -6.0% 0.32% DBT
11 Puerto Rico Sales Tax Financing Corp Sales Tax Revenue 74529JQG3 Feb 2026 21,495,000 -2,138,000 $7.8M -7.7% 0.32% DBT
12 Public Finance Authority 74442PF67 Feb 2026 7,000,000 -3,245,000 $7.3M -32.9% 0.30% DBT
13 University of California 91412HXZ1 Feb 2026 6,270,000 -13,730,000 $7.2M -69.5% 0.30% DBT
14 Tamalpais Union High School District 874857LQ6 Feb 2026 1,650,000 -11,770,000 $1.7M -87.8% 0.07% DBT
15 Tamalpais Union High School District 874857LT0 Feb 2026 1,300,000 -8,190,000 $1.3M -86.3% 0.05% DBT
16 Alameda County Fire Department 010892AL1 Feb 2026 850,000 -2,000,000 $903K -70.6% 0.04% DBT
17 California Municipal Finance Authority 13051BAE6 Feb 2026 385,000 -15,000 $393K -5.1% 0.02% DBT