UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM N-Q

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED
MANAGEMENT INVESTMENT COMPANY

Investment Company Act file number: 811-02319


Fort Dearborn Income Securities, Inc.


(Exact name of registrant as specified in charter)

51 West 52nd Street, New York, New York 10019-6114


(Address of principal executive offices) (Zip code)

Mark F. Kemper, Esq.
UBS Global Asset Management (Americas) Inc.
51 West 52nd Street
New York, NY 10019-6114
(Name and address of agent for service)
 
Copy to:
Bruce G. Leto, Esq.
Stradley Ronon Stevens & Young LLP
2600 One Commerce Square
Philadelphia, PA 19103

Registrant’s telephone number, including area code: 212-882 5000

Date of fiscal year end: September 30

Date of reporting period: December 31, 2007


Item 1. Schedule of Investments

Fort Dearborn Income Securities, Inc. – Portfolio of investments
December 31, 2007 (unaudited)

    Face          
    amount     Value  
   
 
Bonds – 97.57%                
US bonds – 93.11%                
US corporate bonds – 58.14%                
Abbott Laboratories,                

6.150%, due 11/30/37

  $ 1,060,000     $ 1,118,479  
Allergan, Inc.,                

5.750%, due 04/01/16

    2,370,000       2,427,534  
Allstate Corp.,                

5.950%, due 04/01/36

    550,000       516,088  
Anadarko Petroleum Corp.,                

5.950%, due 09/15/16

    350,000       356,380  
Anheuser-Busch Cos., Inc.                

6.450%, due 09/01/37

    400,000       433,562  
Apache Corp.,                

6.000%, due 01/15/37

    575,000       570,298  
AT&T, Inc.,                

6.450%, due 06/15/34

    995,000       1,025,516  

6.500%, due 09/01/37

    975,000       1,019,536  
Bank of America Corp.,                

5.420%, due 03/15/17

    1,900,000       1,835,970  
Bear Stearns Cos., Inc.,                

5.550%, due 01/22/17

    740,000       663,198  
BellSouth Corp.,                

6.550%, due 06/15/34

    1,015,000       1,049,819  
Bristol-Myers Squibb Co.,                

5.875%, due 11/15/36

    850,000       844,666  
Burlington Northern Santa Fe Corp.,                

7.082%, due 05/13/29

    840,000       910,226  
Capital One Financial Corp.,                

5.500%, due 06/01/15

    1,405,000       1,295,930  

6.750%, due 09/15/17

    1,370,000       1,313,996  
Citigroup, Inc.,                

5.625%, due 08/27/12

    815,000       825,580  

5.875%, due 05/29/37

    515,000       480,630  

6.125%, due 11/21/17

    1,350,000       1,386,712  
Comcast Corp.,                

6.950%, due 08/15/37

    2,250,000       2,428,362  
Countrywide Financial Corp.,                

5.128%, due 05/05/08(1)

    125,000       114,183  
Countrywide Home Loans, Inc.,                

3.250%, due 05/21/08

    525,000       474,426  
CRH America, Inc.,                

6.000%, due 09/30/16

    700,000       684,594  
CVS Caremark Corp.,                

6.250%, due 06/01/27

    1,050,000       1,052,271  
Daimler Finance N.A. LLC,                

8.500%, due 01/18/31

    845,000       1,065,711  
Devon Financing Corp. ULC,                

7.875%, due 09/30/31

    865,000       1,046,178  
Dominion Resources, Inc.,                

Series B,

               

5.950%, due 06/15/35

    495,000       462,603  
DTE Energy Co.,                

6.350%, due 06/01/16

    705,000       728,859  
Erac USA Finance Co.,                

7.000%, due 10/15/37(2)

    440,000       399,621  

8.000%, due 01/15/11(2)

    1,065,000       1,139,513  
Exelon Generation Co. LLC,                

5.350%, due 01/15/14

    1,015,000       987,793  
Florida Power Corp.,                

6.350%, due 09/15/37

    215,000       226,524  
Ford Motor Credit Co. LLC,                

5.800%, due 01/12/09

    6,090,000       5,780,598  
Fortune Brands, Inc.,                

5.375%, due 01/15/16

    1,090,000       1,038,392  
General Electric Capital Corp.,                

5.625%, due 09/15/17

    335,000       343,702  

6.000%, due 06/15/12

    1,730,000       1,813,625  
General Electric Co.,                

5.250%, due 12/06/17

    705,000       703,496  
GMAC LLC,                

6.875%, due 09/15/11

    2,340,000       2,001,856  
Goldman Sachs Group, Inc.,                

6.125%, due 02/15/33

    440,000       432,423  

6.875%, due 01/15/11

    1,685,000       1,787,118  

    Face          
    amount     Value  
   
 
Bonds – (continued)                
US bonds – (continued)                
US corporate bonds – (continued)                
HSBC Bank USA N.A.,                

5.625%, due 08/15/35

  $ 855,000     $ 755,543  
HSBC Finance Corp.,                

6.750%, due 05/15/11

    1,165,000       1,208,530  
ICI Wilmington, Inc.,                

5.625%, due 12/01/13

    850,000       874,135  
JP Morgan Chase Capital XXV,                

6.800%, due 10/01/37

    540,000       519,194  
JPMorgan Chase & Co.,                

6.750%, due 02/01/11

    955,000       1,002,743  
Kinder Morgan Energy Partners LP,                

5.125%, due 11/15/14

    580,000       565,122  

5.800%, due 03/15/35

    805,000       728,706  

7.400%, due 03/15/31

    265,000       285,335  
Kroger Co.,                

7.500%, due 04/01/31

    650,000       724,770  
Lehman Brothers Holdings, Inc.,                

5.500%, due 04/04/16

    300,000       287,053  

5.750%, due 01/03/17

    725,000       696,468  

7.000%, due 09/27/27

    680,000       690,168  
MBNA Corp.,                

7.500%, due 03/15/12

    550,000       599,895  
Merck & Co., Inc.,                

6.400%, due 03/01/28

    520,000       556,858  
Merrill Lynch & Co., Inc.,                

5.700%, due 05/02/17

    400,000       381,238  
MidAmerican Energy Holdings Co.,                

5.950%, due 05/15/37

    900,000       872,980  
Morgan Stanley,                

5.950%, due 12/28/17

    775,000       774,447  

6.750%, due 04/15/11

    1,675,000       1,755,638  

7.250%, due 04/01/32

    355,000       386,535  
National City Bank,                

4.625%, due 05/01/13

    360,000       336,083  
New Cingular Wireless Services, Inc.,                

8.750%, due 03/01/31

    945,000       1,224,704  
News America, Inc.,                

6.200%, due 12/15/34

    695,000       685,124  
Northrop Grumman Corp.,                

7.125%, due 02/15/11

    425,000       452,942  
Pacific Gas & Electric Co.,                

6.050%, due 03/01/34

    540,000       539,103  
Pitney Bowes, Inc.,                

4.625%, due 10/01/12

    300,000       303,482  
PPL Energy Supply LLC,                

Series A,

               

6.000%, due 12/15/36

    370,000       338,732  
Progressive Corp.,                

6.250%, due 12/01/32

    275,000       283,479  
Prologis,                

5.625%, due 11/15/15

    825,000       789,168  
Prudential Financial, Inc.,                

6.625%, due 12/01/37

    425,000       428,570  
PSEG Power LLC,                

8.625%, due 04/15/31

    695,000       855,130  
Residential Capital LLC,                

8.375%, due 06/30/15

    660,000       399,300  
Safeway, Inc.,                

7.250%, due 02/01/31

    645,000       699,114  
Simon Property Group LP,                

5.375%, due 06/01/11

    300,000       296,204  
Sprint Capital Corp.,                

6.875%, due 11/15/28

    1,500,000       1,422,544  
Target Corp.,                

6.500%, due 10/15/37

    290,000       291,479  

7.000%, due 07/15/31

    305,000       312,436  
Teva Pharmaceutical Finance LLC,                

5.550%, due 02/01/16

    845,000       835,020  
Time Warner, Inc.,                

7.625%, due 04/15/31

    1,030,000       1,139,819  
Travelers Property Casualty Corp.,                

6.375%, due 03/15/33

    350,000       346,192  
Union Pacific Corp.,                

6.650%, due 01/15/11

    470,000       488,604  
United Technologies Corp.,                

5.375%, due 12/15/17

    355,000       358,098  
Valero Energy Corp.,                

6.625%, due 06/15/37

    360,000       362,546  

7.500%, due 04/15/32

    885,000       972,605  
Verizon New York, Inc.,                

Series B,

               

7.375%, due 04/01/32

    1,085,000       1,191,164  

    Face          
    amount     Value  
   
 
Bonds – (continued)                
US bonds – (continued)                
US corporate bonds – (concluded)                
Wachovia Bank N.A.,                

7.800%, due 08/18/10

  $ 1,620,000     $ 1,745,906  
Wachovia Bank N.A.,                

5.850%, due 02/01/37

    700,000       630,794  
Wal-Mart Stores, Inc.                

6.500%, due 08/15/37

    900,000       947,713  
Washington Mutual Bank,                

5.500%, due 01/15/13

    1,350,000       1,197,843  

6.750%, due 05/20/36

    500,000       394,849  
Washington Mutual Preferred Funding,                

9.750%, due 12/15/17(1),(2),(3)

    1,300,000       1,040,000  
WellPoint, Inc.,                

5.850%, due 01/15/36

    705,000       649,612  
Wells Fargo Bank N.A.,                

5.950%, due 08/26/36

    1,380,000       1,296,556  
Weyerhaeuser Co.,                

7.375%, due 03/15/32

    665,000       667,357  
           
Total US corporate bonds                

(cost $80,686,381)

            80,373,598  
           
                 
Asset-backed securities – 3.00%                
Citibank Credit Card Issuance Trust,                

Series 07-A3, Class A3,

               

6.150%, due 06/15/39

    390,000       403,490  
Conseco Finance Securitizations Corp.,                

Series 00-5, Class A5,

               

7.700%, due 02/01/32

    67,656       67,647  
CPL Transition Funding LLC,                

Series 02-1, Class A5,

               

6.250%, due 01/15/17

    3,000,000       3,166,774  
Small Business Administration,                

Series 04-P10B, Class 1,

               

4.754%, due 08/10/14

    517,160       512,938  
           
Total asset-backed securities                

(cost $4,216,803)

            4,150,849  
           
                 
Mortgage & agency debt securities – 8.25%                
CS First Boston Mortgage Securities Corp.,                

Series 03-8, Class 5A1,

               

6.500%, due 04/25/33

    66,647       66,829  
Federal Home Loan Mortgage Corp.,                

4.750%, due 03/05/12

    1,290,000       1,331,737  

5.000%, due 01/30/14

    30,000       31,389  
Federal Home Loan Mortgage Corp. Gold Pool,                

# E01127, 6.500%, due 02/01/17

    151,378       156,712  
Federal National Mortgage Association,                

5.250%, due 08/01/12

    1,000,000       1,039,489  

5.625%, due 07/15/37

    1,500,000       1,662,405  

6.070%, due 05/12/16

    190,000       190,773  
Federal National Mortgage Association Grantor Trust,                

Series 02-T19, Class A1,

               

6.500%, due 07/25/42

    341,529       358,148  
Federal National Mortgage Association Pools,                

# 688066, 5.500%, due 03/01/33

    370,764       371,425  

# 793666, 5.500%, due 09/01/34

    1,810,462       1,810,562  

# 802481, 5.500%, due 11/01/34

    323,436       323,454  

# 596124, 6.000%, due 11/01/28

    225,751       231,064  

# 253824, 7.000%, due 03/01/31

    107,143       112,960  
Federal National Mortgage Association, REMIC,                

Series 93-106, Class Z,

               

7.000%, due 06/25/13

    44,098       45,902  
Government National Mortgage Association Pool,                

# 781029, 6.500%, due 05/15/29

    75,968       78,839  
GSR Mortgage Loan Trust,                

Series 06-2F, Class 3A4,

               

6.000%, due 02/25/36

    1,300,000       1,273,593  
Residential Funding Mortgage Securitization I, Inc.,                

Series 06-S6, Class M2,

               

6.000%, due 07/25/36

    1,285,586       1,071,835  
Wells Fargo Mortgage Backed Securities Trust,                

Series 03-18, Class A2,

               

5.250%, due 12/25/33

    1,278,213       1,246,818  
           
Total mortgage & agency debt securities                

(cost $11,429,987)

            11,403,934  
           

    Face          
    amount     Value  
   
 
Bonds – (concluded)                
US bonds – (concluded)                
Municipal bonds – 3.76%                
Illinois State Taxable Pension,                

5.100%, due 06/01/33

  $ 2,350,000     $ 2,263,262  
New Jersey Economic Development Authority,                

Series B,

               

11.136%, due 02/15/18(4)

    5,000,000       2,931,500  
           
Total municipal bonds                

(cost $4,530,043)

            5,194,762  
           
US government obligations – 19.96%                
US Treasury Bonds Principal STRIPS, PO                

8.294%, due 11/15/26(4)

    16,160,000       6,749,676  
US Treasury Bonds,                

4.750%, due 02/15/37

    5,125,000       5,363,630  

6.250%, due 08/15/23

    545,000       652,510  

8.125%, due 08/15/19

    750,000       1,010,977  
US Treasury Inflation Indexed Bonds,                

2.375%, due 01/15/27

    1,760,333       1,861,552  
US Treasury Notes,                

3.625%, due 10/31/09

    375,000       378,692  

4.250%, due 11/15/13

    1,190,000       1,233,788  

4.625%, due 11/15/16

    660,000       691,196  

4.875%, due 06/30/09

    795,000       815,372  

4.875%, due 06/30/12

    8,335,000       8,840,309  
           
Total US government obligations                

(cost $26,835,298)

            27,597,702  
           
Total US bonds                

(cost $127,698,512)

            128,720,845  
           
International bonds – 4.46%                
International corporate bonds – 4.46%                
Canada – 0.69%                
Canadian National Railway Co.,                

6.375%, due 11/15/37

    625,000       639,560  

6.900%, due 07/15/28

    285,000       312,474  
           
              952,034  
           
Cayman Islands – 0.75%                
Transocean, Inc.,                

6.800%, due 03/15/38

    355,000       362,224  

7.500%, due 04/15/31

    620,000       681,091  
           
              1,043,315  
           
Luxembourg – 0.77%                
Telecom Italia Capital SA,                

6.375%, due 11/15/33

    1,060,000       1,061,632  
           
United Kingdom – 2.25%                
Abbey National PLC,                

7.950%, due 10/26/29

    750,000       889,335  
AstraZeneca PLC,                

6.450%, due 09/15/37

    745,000       816,279  
Royal Bank of Scotland Group PLC,                

7.640%, due 09/29/17(1),(3)

    700,000       719,665  
SABMiller PLC,                

6.500%, due 07/01/16(2)

    650,000       678,839  
           
              3,104,118  
           
Total international bonds                

(cost $6,015,782)

            6,161,099  
           
Total bonds                

(cost $133,714,294)

            134,881,944  
           
                 
    Shares          
   
       
Short-term investment – 2.03%                
Other – 2.03%                

UBS Supplementary Trust – U.S. Cash Management Prime Fund, 4.76%(5),(6)

(cost $2,810,702)

    2,810,702       2,810,702  
           
Total investments(7) – 99.60%                

(cost $136,524,996)

            137,692,646  
Cash and other assets, less liabilities – 0.40%             550,060  
           
Net assets – 100.00%           $ 138,242,706  
           

Notes to portfolio of investments                
                 
Aggregate cost for federal income tax purposes, which was the same for book purposes, was $136,524,996; and net unrealized appreciation consisted of:
                 
Gross unrealized appreciation           $ 3,522,913  
Gross unrealized depreciation             (2,355,263 )
           
Net unrealized appreciation           $ 1,167,650  
           

(1)   Floating rate security – The interest rate shown is the current rate as of December 31, 2007.
(2)   Security exempt from registration under Rule 144A of the Securities Act of 1933. These securities are considered liquid, unless otherwise noted, and may be resold in transactions exempt from registration, normally to qualified institutional buyers. At December 31, 2007, the value of these securities amounted to $3,257,973 or 2.36% of net assets.
(3)   Perpetual bond security. The maturity date reflects the next call date.
(4)   Zero coupon bond. The rate shown is the annualized yield at December 31, 2007.
(5)   The table below details the Fund’s investment in a security issued by a fund that is advised by the same advisor as the Fund. The advisor does not earn a management fee from UBS Supplementary Trust.

                              Income earned
            Purchases   Sales         from affiliate
            during the   during the         for the
            three months   three months         three months
      Value   ended   ended   Value   ended
  Security description   09/30/07   12/31/07   12/31/07   12/31/07   12/31/07
 
 
 
 
 
 
  UBS Supplementary Trust – U.S. Cash Management Prime Fund   $1,247,839   $10,985,672   $9,422,809   $2,810,702   $22,712
                                 
(6)   The rate shown reflects the yield at December 31, 2007.
(7)   The Fund calculates its net asset value based on the current market value, where available, for its portfolio securities.
    The Fund normally obtains market values for its securities from independent pricing sources. Independent pricing sources may use reported last sale prices, current market quotations or valuations from computerized “matrix” systems that derive values based on comparable securities. Securities traded in the over-the-counter (“OTC”) market and listed on The NASDAQ Stock Market, Inc. (“NASDAQ”) normally are valued at the NASDAQ Official Closing Price. Other OTC securities are valued at the last bid price available prior to valuation. Securities which are listed on US and foreign stock exchanges normally are valued at the last sale price on the day the securities are valued or, lacking any sales on such day, at the last available bid price. Securities listed on foreign stock exchanges may be fair valued based on significant events that have occurred subsequent to the close of the foreign markets. The Fund may use a systematic fair valuation model provided by an independent third party to value securities principally traded in foreign markets in order to adjust for possible stale pricing that may occur between the close of the foreign exchanges and the time for valuation. If a security is valued at a “fair value,” that value is likely to be different from the last quoted market price for the security. In cases where securities are traded on more than one exchange, the securities are valued on the exchange designated as the primary market by UBS Global Asset Management (Americas) Inc. (“UBS Global AM”), the investment manager of the Fund. UBS Global AM is an indirect wholly owned asset management subsidiary of UBS AG, an internationally diversified organization with headquarters in Zurich and Basel, Switzerland and operations in many areas of the financial services industry. If a market value is not readily available from an independent pricing source for a particular security, that security is valued at fair value as determined in good faith by or under the direction of the Fund’s Board of Directors (the “Board”). Various factors may be reviewed in order to make a good faith determination of a security’s fair value. These factors include, but are not limited to, fundamental analytical data relating to the investment; the nature and duration of restrictions on disposition of the securities; and the evaluation of forces which influence the market in which the securities are purchased and sold. Investments in open-end investment companies are valued at the daily closing net asset value of the respective investment company.
CS   Credit Suisse
GMAC   General Motors Acceptance Corp.
GSR   Goldman Sachs Residential
PO   Principal only security—This security entitles the holder to receive principal payments from an underlying pool of assets. High prepayments return principal faster than expected and cause the yield to increase. Low prepayments return principal slower than expected and cause the yield to decrease.
REMIC   Real Estate Mortgage Investment Conduit
STRIPS   Bonds that can be subdivided into a series of zero-coupon bonds.

For more information regarding the Fund’s other significant accounting policies, please refer to the Fund’s annual report to shareholders dated September 30, 2007.


Industry diversification      
As a percentage of net assets as of December 31, 2007 (unaudited)      
       
Bonds      
US bonds      
US corporate bonds      
Aerospace & defense   0.59 %
Automobiles   0.77  
Beverages   0.31  
Building products   0.50  
Capital markets   6.06  
Chemicals   0.63  
Commercial banks   3.45  
Commercial services & supplies   0.22  
Consumer finance   8.83  
Diversified financial services   5.56  
Diversified telecommunication services   4.13  
Electric utilities   2.76  
Food & staples retailing   2.48  
Health care providers & services   0.47  
Household durables   0.75  
Industrial conglomerates   0.51  
Insurance   1.14  
Media   3.08  
Multiline retail   0.44  
Multi-utilities   0.86  
Oil, gas & consumable fuels   3.53  
Paper & forest products   0.48  
Pharmaceuticals   4.18  
Real estate investment trusts (REITs)   0.78  
Road & rail   2.12  
Thrifts & mortgage finance   2.62  
Wireless telecommunication services   0.89  
   
 
Total US corporate bonds   58.14  
       
Asset-backed securities   3.00  
Mortgage & agency debt securities   8.25  
Municipal bonds   3.76  
US government obligations   19.96  
   
 
Total US bonds   93.11  
   
 
International bonds      
International corporate bonds      
Beverages   0.49  
Commercial banks   0.52  
Diversified telecommunication services   0.77  
Energy equipment & services   0.76  
Pharmaceuticals   0.59  
Road & rail   0.69  
Thrifts & mortgage finance   0.64  
   
 
Total international bonds   4.46  
   
 
Total bonds   97.57  
Short-term investment   2.03  
   
 
Total investments   99.60  
Cash and other assets, less liabilities   0.40  
   
 
Net assets   100.00 %
   
 

Item 2. Controls and Procedures.

(a)  

The registrant’s principal executive officer and principal financial officer have concluded that the registrant’s disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940, as amended (“Investment Company Act”)) are effective based on their evaluation of these controls and procedures as of a date within 90 days of the filing date of this document.

(b)  

The registrant’s principal executive officer and principal financial officer are aware of no changes in the registrant’s internal control over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act) that occurred during the registrant’s last fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.

Item 3. Exhibits.

(a)   Certifications of principal executive officer and principal financial officer of registrant pursuant to Rule 30a-2(a) under the Investment Company Act is attached hereto as Exhibit EX-99.CERT.

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.

Fort Dearborn Income Securities, Inc.

By:   /s/ Kai R. Sotorp
    Kai R. Sotorp
    President
     
Date:   February 29, 2008

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:   /s/ Kai R. Sotorp
    Kai R. Sotorp
    President
     
Date:   February 29, 2008

By:   /s/ Thomas Disbrow
    Thomas Disbrow
    Treasurer & Principal Accounting Officer
     
Date:   February 29, 2008