MFS CALIFORNIA MUNICIPAL FUND N-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-Q

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF

REGISTERED MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number 811-9537

MFS CALIFORNIA MUNICIPAL FUND

(Exact name of registrant as specified in charter)

111 Huntington Avenue, Boston, Massachusetts 02199

(Address of principal executive offices) (Zip code)

Susan S. Newton

Massachusetts Financial Services Company

111 Huntington Avenue

Boston, Massachusetts 02199

(Name and address of agents for service)

Registrant’s telephone number, including area code: (617) 954-5000

Date of fiscal year end: November 30

Date of reporting period: August 31, 2013


ITEM 1. SCHEDULE OF INVESTMENTS.


QUARTERLY REPORT

August 31, 2013

 

LOGO

 

MFS® CALIFORNIA MUNICIPAL FUND

 

LOGO


PORTFOLIO OF INVESTMENTS

8/31/13 (unaudited)

The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes.

 

Issuer    Shares/Par     Value ($)  
    
Municipal Bonds - 173.2%                 
Airport Revenue - 7.9%                 
Los Angeles, CA, Department of Airports Rev. (Los Angeles International), “C”, BHAC, 5.25%, 2038    $ 750,000      $ 774,786   
Orange County, CA, Airport Rev., “A”, 5%, 2031      190,000        192,668   
San Diego County, CA, Regional Airport Authority Rev., “A”, 5%, 2021      500,000        546,410   
San Francisco, CA, City & County Airports Commission, International Airport Rev., “A”, 5%, 2030      285,000        279,614   
San Francisco, CA, City & County Airports Commission, International Airport Rev., “A”, 5%, 2031      150,000        146,045   
San Jose, CA, Airport Rev., “A-2”, 5.25%, 2034      440,000        442,702   
    

 

 

 
             $ 2,382,225   
General Obligations - General Purpose - 10.2%                 
Commonwealth of Puerto Rico, “A”, 5.5%, 2018    $ 370,000      $ 376,545   
State of California, AMBAC, 6%, 2017      1,000,000        1,163,330   
State of California, 5.25%, 2035      455,000        467,303   
State of California, 5.5%, 2040      630,000        649,732   
State of California, 5.25%, 2040      415,000        422,146   
    

 

 

 
             $ 3,079,056   
General Obligations - Schools - 27.8%                 
Alhambra, CA, Unified School District, “B”, ASSD GTY, 5.25%, 2028    $ 500,000      $ 528,255   
Banning, CA, Unified School District (Election of 2006), “B”, ASSD GTY, 5.25%, 2033      500,000        515,435   
Beaumont, CA, Unified School District (Election of 2008), Capital Appreciation, “C”, AGM, 0%, 2040      955,000        189,119   
Chabot-Las Positas, CA, Community College (Election of 2004), “B”, AMBAC, 5%, 2030      60,000        66,691   
El Camino, CA, Community College District (Election of 2002), “C”, 4%, 2037      550,000        465,608   
Lake Tahoe, CA, Unified School District (Election of 2008), Capital Appreciation, AGM, 0%, 2045      515,000        168,493   
Montebello, CA, Unified School District (Election of 2004), “A-1”, ASSD GTY, 5.25%, 2034      355,000        366,800   
Napa Valley, CA, Unified School District, 5%, 2020      225,000        260,159   
Peralta, CA, Community College District, AGM, 5%, 2016      500,000        557,130   
Pittsburg, CA, Unified School District, “B”, AGM, 5.5%, 2034      500,000        525,135   
Pomona, CA, Unified School District, “A”, NATL, 6.55%, 2029      1,000,000        1,152,190   
San Diego County, CA, Southwestern Community College District (Election of 2008), “C”, 5%, 2040      370,000        364,065   
San Diego, CA, Community College (Election of 2002), 5.25%, 2033      125,000        134,093   
San Joaquin, CA, Delta Community College District (Election of 2004), “B”, Capital Appreciation, AGM, 0%, 2018      400,000        353,076   
Santee, CA, School District (Election of 2006), Capital Appreciation, “D”, ASSD GTY, 0%, 2043      765,000        118,996   
Vallejo City, CA, Unified School District, “A”, NATL, 5.9%, 2025      500,000        511,650   
Victor, CA, Elementary School District (Election of 2008), “A”, ASSD GTY, 5.125%, 2034      500,000        514,460   
Washington, CA, Yolo County Unified School District (New High School Project), 5%, 2021      450,000        480,528   
West Contra Costa, CA, Unified School District, “A”, NATL, 5.7%, 2023      500,000        585,305   
West Covina, CA, Unified School District, “A”, NATL, 5.8%, 2021      500,000        555,320   
    

 

 

 
             $ 8,412,508   
Healthcare Revenue - Hospitals - 27.5%                 
ABAG Finance Authority for Non-Profit Corps., CA, Rev. (Sharp Healthcare), 6.25%, 2039    $ 505,000      $ 547,364   
ABAG Finance Authority for Non-Profit Corps., CA, Rev. (Sharp Healthcare), “A”, 5%, 2026      110,000        113,966   
California Health Facilities Financing Authority Rev. (Cedars-Sinai Medical Center), 5%, 2034      250,000        243,605   
California Health Facilities Financing Authority Rev. (Memorial Health Services), “A”, 5%, 2033      295,000        294,248   
California Health Facilities Financing Authority Rev. (Scripps Health), “A”, 5%, 2032      525,000        521,120   
California Health Facilities Financing Authority Rev. (Scripps Health), “A”, 5%, 2040      255,000        243,673   
California Health Facilities Financing Authority Rev. (Sutter Health), “B”, 5.5%, 2020      500,000        590,185   
California Health Facilities Financing Authority Rev. (Sutter Health), “B”, 5.875%, 2031      500,000        544,640   
California Municipal Finance Authority, COP (Community Hospitals of Central California), 5.25%, 2027      250,000        248,325   
California Statewide Communities Development Authority Rev. (Adventist), ASSD GTY, 5%, 2037      500,000        483,890   
California Statewide Communities Development Authority Rev. (Catholic Healthcare West), “K”, ASSD GTY, 5.5%, 2041      1,000,000        1,031,850   
California Statewide Communities Development Authority Rev. (Enloe Medical Center), “A”, CALHF, 5.5%, 2023      500,000        552,675   

 

1


Portfolio of Investments (unaudited) – continued

 

Issuer    Shares/Par     Value ($)  
    
Municipal Bonds - continued                 
Healthcare Revenue - Hospitals - continued                 
California Statewide Communities Development Authority Rev. (Huntington Memorial Hospital), 5%, 2035    $ 535,000      $ 498,657   
California Statewide Communities Development Authority Rev. (Kaiser Permanente), “A”, 5%, 2042      455,000        430,530   
California Statewide Communities Development Authority Rev. (Santa Ynez Valley Cottage Hospital), 5.25%, 2030      260,000        269,386   
California Statewide Communities Development Authority Rev. (Sutter Health), “A”, 5%, 2032      610,000        604,089   
California Statewide Communities Development Authority Rev. (Trinity Health Corp.), 5%, 2041      450,000        432,855   
Santa Clara County, CA, Financing Authority Rev. (El Camino Hospital), AMBAC, 5.125%, 2041      400,000        387,672   
Upland, CA, COP (San Antonio Community Hospital), 6.375%, 2032      250,000        273,563   
    

 

 

 
             $ 8,312,293   
Healthcare Revenue - Long Term Care - 2.7%                 
ABAG Finance Authority for Non-Profit Corps., CA, Rev. (Episcopal Senior Communities), 6.125%, 2041    $ 150,000      $ 152,544   
ABAG Finance Authority for Non-Profit Corps., CA, Rev. (Eskaton Properties, Inc.), 5%, 2035      230,000        204,808   
California Statewide Communities Development Authority Rev. (Episcopal Communities & Services for Seniors Obligated Group), 5%, 2047      315,000        259,513   
California Statewide Communities Development Authority Rev. (Eskaton Properties, Inc.), 5.25%, 2034      230,000        213,339   
    

 

 

 
             $ 830,204   
Miscellaneous Revenue - Other - 3.2%                 
ABAG Finance Authority for Non-Profit Corps., CA, Rev. (Jackson Lab), 5.75%, 2015 (c)    $ 385,000      $ 429,776   
ABAG Finance Authority for Non-Profit Corps., CA, Rev. (Jackson Lab), 5%, 2037      400,000        381,760   
California Infrastructure & Economic Development Bank Rev. (Walt Disney Family Museum), 5.25%, 2033      160,000        161,304   
    

 

 

 
             $ 972,840   
Port Revenue - 4.2%                 
Alameda Corridor Transportation Authority, California Rev., “A”, AGM, 5%, 2028    $ 305,000      $ 315,483   
Port of Oakland, CA, Rev., “P”, 5%, 2033      1,000,000        953,010   
    

 

 

 
             $ 1,268,493   
Sales & Excise Tax Revenue - 1.7%                 
California Economic Recovery, “A”, 5%, 2020    $ 250,000      $ 288,493   
Puerto Rico Sales Tax Financing Corp., Sales Tax Rev., Convertible Capital Appreciation, “A”, 0% to 2016, 6.75% to 2032      250,000        211,583   
    

 

 

 
             $ 500,076   
Single Family Housing Revenue - Local - 0.0%                 
California Rural Home Mortgage Finance Authority Rev., Mortgage Backed Securities Program, “A”, GNMA, 6.35%, 2029    $ 5,000      $ 5,096   
Single Family Housing - Other - 1.6%                 
California Department of Veterans Affairs, Home Purchase Rev., “A”, 4.5%, 2028    $ 500,000      $ 495,995   
Single Family Housing - State - 3.6%                 
California Housing Finance Agency Rev. (Home Mortgage), “E”, 4.75%, 2030    $ 305,000      $ 279,005   
California Housing Finance Agency Rev. (Home Mortgage), “K”, 5.3%, 2023      190,000        190,808   
California Housing Finance Agency Rev. (Home Mortgage), “L”, 5.45%, 2033      555,000        544,400   
California Housing Finance Agency Rev. (Home Mortgage), “L”, FNMA, 5.5%, 2038      80,000        77,777   
    

 

 

 
             $ 1,091,990   
Solid Waste Revenue - 1.7%                 
Salinas Valley, CA, Solid Waste Authority Rev., AMBAC, 5.125%, 2022    $ 500,000      $ 501,230   
State & Agency - Other - 1.5%                 
Sacramento County, CA, Public Facilities Project, COP, AMBAC, 4.75%, 2027    $ 500,000      $ 450,795   
State & Local Agencies - 18.7%                 
California Public Works Board Lease Rev. (Judicial Council Projects), “A”, 5%, 2028    $ 380,000      $ 390,401   
Compton, CA, Public Finance Authority, AMBAC, 5%, 2032      500,000        337,830   

 

2


Portfolio of Investments (unaudited) – continued

 

Issuer    Shares/Par     Value ($)  
    
Municipal Bonds - continued                 
State & Local Agencies - continued                 
Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., FGIC, 5%, 2035    $ 255,000      $ 248,385   
Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., BHAC, 5%, 2038      1,000,000        961,500   
Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., Enhanced, “A”, FGIC, 5%, 2038      1,000,000        916,710   
Los Angeles County, CA, Schools Regionalized Business Service Corp., Pooled Financing, Capital Appreciation, “A”, AMBAC, 0%, 2018      2,020,000        1,655,329   
Los Angeles County, CA, Schools Regionalized Business Service Corp., Pooled Financing, Capital Appreciation, “A”, AMBAC, 0%, 2023      1,220,000        717,592   
Los Angeles, CA, Municipal Improvement Corp. Lease Rev., “B”, ASSD GTY, 5.5%, 2030      390,000        417,343   
    

 

 

 
             $ 5,645,090   
Tax Assessment - 13.2%                 
Dana Point, CA, Community Facilities District, Special Tax, “2006-1”, 4.625%, 2043    $ 145,000      $ 124,384   
Fontana, CA, Public Finance Authority, Tax Allocation Rev. (Sub Lien North Fontana Redevelopment), “A”, AMBAC, 5%, 2029      1,000,000        1,005,230   
Fullerton, CA, Community Facilities District, Special Tax (Amerige Heights), 5%, 2032      155,000        149,294   
Huntington Park, CA, Public Financing Authority Rev., “A”, AGM, 5.25%, 2019      500,000        524,825   
Irvine, CA, Limited Obligation Improvement (Reassessment District #12-1), 4%, 2022      115,000        117,001   
Irvine, CA, Limited Obligation Improvement (Reassessment District #12-1), 5%, 2023      60,000        65,107   
North Natomas, CA, Community Facilities District Special Tax, “4-E”, 5.25%, 2033      160,000        153,130   
San Diego, CA, Redevelopment Agency, Tax Allocation (Centre City), “A”, AMBAC, 5.25%, 2025      500,000        512,340   
San Dieguito, CA, Public Facilities Authority, ‘‘A’’, AMBAC, 5%, 2032      500,000        458,295   
San Francisco, CA, City & County Redevelopment Successor Agency, Community Facilities District No. 6 (Mission Bay South Public Improvements), “A”, 5%, 2033      130,000        123,698   
San Jose, CA, Redevelopment Agency, Tax Allocation (Merged Area Redevelopment Project), “C”, NATL, 4.25%, 2030      900,000        755,217   
    

 

 

 
             $ 3,988,521   
Tobacco - 3.9%                 
Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., “A-1”, 5.125%, 2047    $ 1,000,000      $ 665,980   
Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., “A-1”, 5.75%, 2047      715,000        521,700   
    

 

 

 
             $ 1,187,680   
Toll Roads - 1.8%                 
Foothill/Eastern Corridor Agency, CA, Toll Road Rev., NATL, 5.125%, 2019    $ 250,000      $ 250,268   
Riverside County, CA, Transportation Commission, Toll Rev., “A”, 5.75%, 2044      320,000        309,235   
    

 

 

 
             $ 559,503   
Transportation - Special Tax - 3.5%                 
Commonwealth of Puerto Rico Highway & Transportation Authority, Highway Rev., “Y”, AGM, 5.5%, 2016 (c)    $ 450,000      $ 510,525   
San Francisco, CA, Bay Area Rapid Transit District, Sales Tax Rev., “A”, 5%, 2036      220,000        224,070   
San Francisco, CA, Municipal Transportation Agency Rev., “B”, 5%, 2037      335,000        332,709   
    

 

 

 
             $ 1,067,304   
Universities - Colleges - 6.2%                 
California Educational Facilities Authority Rev. (Dominican University of California), 5%, 2025    $ 120,000      $ 121,349   
California Educational Facilities Authority Rev. (University of San Francisco), 6.125%, 2030      285,000        316,658   
California Public Works Board Lease Rev. (The Regents of the University of California), 5%, 2028      375,000        401,895   
California State University Rev., “A”, 5%, 2024      370,000        406,312   
California Statewide Communities Development Authority Rev. (Lancer Plaza Project), 5.875%, 2043      230,000        201,009   
University Enterprises, Inc. (Auxiliary Organization), “A”, FGIC, 4.375%, 2030      500,000        425,110   
    

 

 

 
             $ 1,872,333   
Universities - Secondary Schools - 1.5%                 
California Statewide Communities Development Authority, School Facility Rev. (Alliance for College-Ready Public Schools), “A”, 6.1%, 2032    $ 150,000      $ 143,366   
California Statewide Communities Development Authority, School Facility Rev. (Alliance for College-Ready Public Schools), “A”, 6.375%, 2047      315,000        298,119   
    

 

 

 
             $ 441,485   

 

3


Portfolio of Investments (unaudited) – continued

 

Issuer    Shares/Par     Value ($)  
    
Municipal Bonds - continued                 
Utilities - Cogeneration - 1.3%                 
California Pollution Control Financing Authority, Water Furnishing Rev. (Poseidon Resources Desalination Project), 5%, 2045    $ 505,000      $ 395,430   
Utilities - Municipal Owned - 10.6%                 
California Department of Water Resources, Power Supply Rev., “L”, 5%, 2019 (f)    $ 805,000      $ 936,320   
California Department of Water Resources, Power Supply Rev., “N”, 5%, 2020      205,000        238,421   
Northern California Power Agency, Capital Facilities Rev., “A”, 5.25%, 2024      390,000        411,208   
Sacramento, CA, Municipal Utility District Rev., “U”, AGM, 5%, 2019      750,000        849,750   
Sacramento, CA, Municipal Utility District Rev., “X”, 5%, 2025      370,000        399,929   
Vernon, CA, Electric System Rev., “A”, 5.5%, 2041      370,000        361,216   
    

 

 

 
             $ 3,196,844   
Utilities - Other - 2.7%                 
California M-S-R Energy Authority Gas Rev., “A”, 6.5%, 2039    $ 245,000      $ 267,217   
Southern California Public Power Authority (Natural Gas Project No. 1), “A”, 5%, 2033      585,000        551,632   
    

 

 

 
             $ 818,849   
Water & Sewer Utility Revenue - 16.2%                 
Atwater, CA, Public Financing Authority Wastewater Rev., ASSD GTY, 5%, 2034    $ 500,000      $ 448,930   
Bay Area, CA, Water Supply & Conservation Agency, “A”, 5%, 2034      225,000        229,799   
California Department of Water Resources (Center Valley Project), “A-E”, 5%, 2028      500,000        547,315   
Chino Basin, CA, Regional Financing Authority Rev. (Inland Empire Utilities Agency), “A”, AMBAC, 5%, 2038      1,000,000        1,034,790   
Commonwealth of Puerto Rico Aqueduct & Sewer Authority Rev., “A”, 5.75%, 2037      110,000        79,994   
Escondido CA, Joint Powers Financing Authority Rev. (Water System Financing), 5%, 2041      460,000        439,337   
Los Angeles, CA, Department of Water & Power Waterworks Rev., “C”, NATL, 5%, 2014 (c)      500,000        519,705   
Madera, CA, Irrigation Financing Authority Rev., 6.5%, 2040      440,000        462,708   
Norco, CA, Financing Authority Enterprise Rev., AGM, 5.625%, 2039      215,000        215,482   
San Francisco, CA, City & County Public Utilities Commission, Wastewater Rev., “B”, 4%, 2036      355,000        304,040   
Sonoma County, CA, Water Agency Rev., “A”, AGM, 5%, 2036      600,000        604,194   
    

 

 

 
             $ 4,886,294   
Total Municipal Bonds            $ 52,362,134   
Money Market Funds - 5.2%                 
MFS Institutional Money Market Portfolio, 0.09%, at Net Asset Value (v)      1,564,978      $ 1,564,978   
Total Investments            $ 53,927,112   
Other Assets, Less Liabilities - 2.4%              726,356   
VMTPS, at liquidation value (issued by the fund) - (80.8)%              (24,425,000
Net Assets applicable to common shares - 100.0%            $ 30,228,468   

 

(c) Refunded bond.
(f) All or a portion of the security has been segregated as collateral for open futures contracts.
(v) Underlying affiliated fund that is available only to investment companies managed by MFS. The rate quoted for the MFS Institutional Money Market Portfolio is the annualized seven-day yield of the fund at period end.

The following abbreviations are used in this report and are defined:

 

COP   Certificate of Participation
VMTPS   Variable Rate Municipal Term Preferred Shares

 

4


Portfolio of Investments (unaudited) – continued

 

 

Insurers      
AGM    Assured Guaranty Municipal
AMBAC    AMBAC Indemnity Corp.
ASSD GTY    Assured Guaranty Insurance Co.
BHAC    Berkshire Hathaway Assurance Corp.
CALHF    California Housing Finance Agency
FGIC    Financial Guaranty Insurance Co.
FNMA    Federal National Mortgage Assn.
GNMA    Government National Mortgage Assn.
NATL    National Public Finance Guarantee Corp.

Derivative Contracts at 8/31/13

Futures Contracts Outstanding at 8/31/13

 

Description    Currency      Contracts      Value    Expiration Date    Unrealized
Appreciation
(Depreciation)
 
Asset Derivatives               
Interest Rate Futures               
U.S. Treasury Note 10 yr (Short)      USD         20       $2,485,625    December - 2013      $6,980   
              

 

 

 
Liability Derivatives               
Interest Rate Futures               
U.S. Treasury Bond 30 yr (Short)      USD         4       $527,625    December - 2013      $(3,741
              

 

 

 

At August 31, 2013, the fund had liquid securities with an aggregate value of $51,178 to cover any commitments for certain derivative contracts.

See attached supplemental information. For more information see notes to financial statements as disclosed in the most recent semiannual or annual report.

 

5


Supplemental Information

8/31/13 (unaudited)

(1) Investment Valuations

Debt instruments and floating rate loans (other than short-term instruments), including restricted debt instruments, are generally valued at an evaluated or composite bid as provided by a third-party pricing service. Short-term instruments with a maturity at issuance of 60 days or less generally are valued at amortized cost, which approximates market value. Futures contracts are generally valued at last posted settlement price as provided by a third-party pricing service on the market on which they are primarily traded. Futures contracts for which there were no trades that day for a particular position are generally valued at the closing bid quotation as provided by a third-party pricing service on the market on which such futures contracts are primarily traded. Open-end investment companies are generally valued at net asset value per share. Securities and other assets generally valued on the basis of information from a third-party pricing service may also be valued at a broker/dealer bid quotation. Values obtained from third-party pricing services can utilize both transaction data and market information such as yield, quality, coupon rate, maturity, type of issue, trading characteristics, and other market data.

The Board of Trustees has delegated primary responsibility for determining or causing to be determined the value of the fund’s investments (including any fair valuation) to the adviser pursuant to valuation policies and procedures approved by the Board. If the adviser determines that reliable market quotations are not readily available, investments are valued at fair value as determined in good faith by the adviser in accordance with such procedures under the oversight of the Board of Trustees. Under the fund’s valuation policies and procedures, market quotations are not considered to be readily available for most types of debt instruments and floating rate loans and many types of derivatives. These investments are generally valued at fair value based on information from third-party pricing services. In addition, investments may be valued at fair value if the adviser determines that an investment’s value has been materially affected by events occurring after the close of the exchange or market on which the investment is principally traded (such as foreign exchange or market) and prior to the determination of the fund’s net asset value, or after the halting of trading of a specific security where trading does not resume prior to the close of the exchange or market on which the security is principally traded. The adviser generally relies on third-party pricing services or other information (such as the correlation with price movements of similar securities in the same or other markets; the type, cost and investment characteristics of the security; the business and financial condition of the issuer; and trading and other market data) to assist in determining whether to fair value and at what value to fair value an investment. The value of an investment for purposes of calculating the fund’s net asset value can differ depending on the source and method used to determine value. When fair valuation is used, the value of an investment used to determine the fund’s net asset value may differ from quoted or published prices for the same investment. There can be no assurance that the fund could obtain the fair value assigned to an investment if it were to sell the investment at the same time at which the fund determines its net asset value per share.

Various inputs are used in determining the value of the fund’s assets or liabilities. These inputs are categorized into three broad levels. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, an investment’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The fund’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the investment. Level 1 includes unadjusted quoted prices in active markets for identical assets or liabilities. Level 2 includes other significant observable market-based inputs (including quoted prices for similar securities, interest rates, prepayment speed, and credit risk). Level 3 includes unobservable inputs, which may include the adviser’s own assumptions in determining the fair value of investments. Other financial instruments are derivative instruments not reflected in total investments, such as futures contracts. The following is a summary of the levels used as of August 31, 2013 in valuing the fund’s assets or liabilities:

 

Investments at Value    Level 1      Level 2      Level 3      Total  
Municipal Bonds      $—         $52,362,134         $—         $52,362,134   
Mutual Funds      1,564,978                         1,564,978   
Total Investments      $1,564,978         $52,362,134         $—         $53,927,112   
Other Financial Instruments                            
Futures Contracts      $3,239         $—         $—         $3,239   

For further information regarding security characteristics, see the Portfolio of Investments.

(2) Portfolio Securities

The cost and unrealized appreciation and depreciation in the value of the investments owned by the fund, as computed on a federal income tax basis, are as follows:

 

Aggregate cost      $54,781,569   
Gross unrealized appreciation      1,580,847   
Gross unrealized depreciation      (2,435,304
Net unrealized appreciation (depreciation)      $(854,457

The aggregate cost above includes prior fiscal year end tax adjustments, if applicable.

 

6


Supplemental Information (unaudited) – continued

 

(3) Transactions in Underlying Affiliated Funds – Affiliated Issuers

An affiliated issuer may be considered one in which the fund owns 5% or more of the outstanding voting securities, or a company which is under common control. For the purposes of this report, the fund assumes the following to be an affiliated issuer:

 

Underlying Affiliated Fund    Beginning
Shares/Par
Amount
     Acquisitions
Shares/Par
Amount
     Dispositions
Shares/Par
Amount
     Ending
Shares/Par
Amount
 
MFS Institutional Money Market Portfolio      1,001,732         5,915,713         (5,352,467      1,564,978   
Underlying Affiliated Fund    Realized
Gain (Loss)
     Capital Gain
Distributions
     Dividend
Income
     Ending
Value
 
MFS Institutional Money Market Portfolio      $—         $—         $650         $1,564,978   

 

7


ITEM 2. CONTROLS AND PROCEDURES.

 

(a) Based upon their evaluation of the effectiveness of the registrant’s disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940 (the “Act”)) as conducted within 90 days of the filing date of this Form N-Q, the registrant’s principal financial officer and principal executive officer have concluded that those disclosure controls and procedures provide reasonable assurance that the material information required to be disclosed by the registrant on this report is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms.

 

(b) There were no changes in the registrant’s internal controls over financial reporting (as defined in Rule 30a-3(d) under the Act) that occurred during the registrant’s last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the registrant’s internal control over financial reporting.

 

ITEM 3. EXHIBITS.

File as exhibits as part of this Form a separate certification for each principal executive officer and principal financial officer of the registrant as required by Rule 30a-2(a) under the Act (17 CFR 270.30a-2): Attached hereto.


Notice

A copy of the Agreement and Declaration of Trust, as amended, of the Registrant is on file with the Secretary of State of The Commonwealth of Massachusetts and notice is hereby given that this instrument is executed on behalf of the Registrant by an officer of the Registrant as an officer and not individually and the obligations of or arising out of this instrument are not binding upon any of the Trustees or shareholders individually, but are binding only upon the assets and property of the respective constituent series of the Registrant.


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Registrant: MFS CALIFORNIA MUNICIPAL FUND

 

By (Signature and Title)*    JOHN M. CORCORAN
  John M. Corcoran, President

Date: October 17, 2013

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

 

By (Signature and Title)*    JOHN M. CORCORAN
 

John M. Corcoran, President

(Principal Executive Officer)

Date: October 17, 2013

 

By (Signature and Title)*    DAVID L. DILORENZO
 

David L. DiLorenzo, Treasurer

(Principal Financial Officer

and Accounting Officer)

Date: October 17, 2013

 

* Print name and title of each signing officer under his or her signature.