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 811-0266

Tri-Continental Corporation
(Exact name of Registrant as specified in charter)

100 Park Avenue
New York, New York 10017
(Address of principal executive offices) (Zip code)

Lawrence P. Vogel
100 Park Avenue
New York, New York 10017
(Name and address of agent for service)

Registrant’s telephone number, including area code: (212) 850-1864

Date of fiscal year end: 12/31

Date of reporting period: 9/30/06


FORM N-Q

ITEM 1. SCHEDULE OF INVESTMENTS.



Tri-Continental Corporation

Portfolio of Investments (unaudited)  
September 30, 2006

 
Shares or
                   
 
Warrants
   
Value
COMMON STOCKS
     
   AND WARRANTS 83.2%      
AEROSPACE AND
     
   DEFENSE 2.7%
     
Boeing Company (The)
326,900
 shs.
$
25,776,065
General Dynamics Corporation
191,800
    13,746,306
Honeywell International Inc.
712,500
    29,141,250
Raytheon Company (Warrants)*
     
     (exercise price of $37.50,
     
     expiring 6/16/2011)
23,639
 wts.   337,329
 
 
 
69,000,950
AIR FREIGHT AND
     
   LOGISTICS 0.6%
     
FedEx Corp.
143,200
  shs.
 
15,562,976
 
BEVERAGES 0.8%
     
Coca-Cola Company (The)
220,200
    9,838,536
Coca-Cola Enterprises Inc.
562,400
 
 
11,714,792
 
 
 
21,553,328
BIOTECHNOLOGY 2.9%
     
Amgen Inc.*
400,500
    28,647,765
Genentech, Inc.*
224,000
    18,524,800
Pharmion Corporation*
1,222,425
 
 
26,343,259
 
 
 
73,515,824
CAPITAL MARKETS 3.4%
     
Bank of New York
     
     Company, Inc. (The)
633,500
    22,337,210
Goldman Sachs
     
     Group, Inc. (The)
66,600
    11,266,722
Legg Mason, Inc.
216,100
    21,795,846
Merrill Lynch & Co. Inc.
211,100
    16,512,242
Morgan Stanley
207,000
 
 
15,092,370
 
 
 
87,004,390
CHEMICALS 0.8%
     
E.I. Du Pont de Nemours
     
     and Company
459,200
 
 
19,672,128
         
COMMERCIAL BANKS 1.7%
     
Sun Trust Banks, Inc.
286,900
    22,171,632
Wachovia Corporation
354,000
 
 
19,753,200
 
 
 
41,924,832
COMMERCIAL SERVICES
     
   AND SUPPLIES 0.8%
     
Waste Management Inc.
544,700
 
 
19,979,596
         
COMMUNICATIONS        
   EQUIPMENT 5.1%        
Cisco Systems, Inc.* 512,380  
11,784,740
Comverse Technology, Inc.* 1,071,200     22,966,528
Corning Incorporated* 944,149     23,046,677
Lucent Technologies, Inc.* 4,229,400     9,896,796
Lucent Technologies, Inc.        
     (exercise price of $2.75,        
     expiring 12/10/2007)*
11,626,025
 wts.   2,208,945
Motorola, Inc. 499,600  shs.   12,490,000
Nokia Corp. (ADR) 617,300     12,154,637
QUALCOMM Inc. 983,300  
 
35,742,955
     
 
130,291,278
COMPUTERS AND        
   PERIPHERALS 2.7%        
EMC Corporation* 2,487,600     29,801,448
International Business        
     Machines Corporation 307,320     25,181,801
Seagate Technology* 537,800  
 
12,417,802
     
 
67,401,051
CONSUMER FINANCE 0.9%        
Capital One        
     Financial Corporation 296,300  
 
23,306,958
 
CONTAINERS AND        
   PACKAGING 1.2%        
Smurfit-Stone        
     Container Company* 2,691,500  
 
30,144,800
 
DIVERSIFIED FINANCIAL        
   SERVICES 5.0%        
Bank of America Corporation 532,040     28,501,383
CIT Group Inc. 205,000     9,969,150
Citigroup Inc. 1,244,230     61,800,904
JPMorgan Chase & Co. 575,600  
 
27,030,176
     
 
127,301,613
DIVERSIFIED        
   TELECOMMUNICATION        
   SERVICES 1.4%        
Citizens Communications        
     Company 1,071,000     15,036,840
Verizon Communications Inc. 167,500     6,219,275
Windstream Corporation 1,146,300  
 
15,119,697
     
 
36,375,812

_________________
See footnotes on page 8.

4


Tri-Continental Corporation

Portfolio of Investments (unaudited)  
September 30, 2006

 
Shares
                 
Value
ELECTRONIC EQUIPMENT        
   AND INSTRUMENTS 0.5%        
Symbol Technologies, Inc. 826,200  
$
12,277,332
 
ENERGY EQUIPMENT        
   AND SERVICES 1.0%        
Halliburton Company 375,400     10,680,130
Tidewater Inc. 349,500     15,444,405
        26,124,535
FOOD AND STAPLES        
   RETAILING 2.0%        
Rite Aid Corporation* 2,761,300     12,536,302
SUPERVALU INC. 440,200     13,051,930
Wal-Mart Stores, Inc. 515,220     25,410,650
        50,998,882
HEALTH CARE EQUIPMENT        
   AND SUPPLIES 1.9%        
Bausch & Lomb Inc. 123,400     6,186,042
Boston Scientific Corporation* 1,492,600     22,075,554
Medtronic, Inc. 402,900     18,710,676
        46,972,272
HEALTH CARE PROVIDERS        
   AND SERVICES 3.1%        
Aetna Inc. 639,200     25,280,360
UnitedHealth Group        
     Incorporated 380,800     18,735,360
WellPoint Inc.* 455,300     35,080,865
        79,096,585
HOTELS, RESTAURANTS        
   AND LEISURE 0.9%        
Harrah’s Entertainment, Inc. 333,400     22,147,762
 
INDUSTRIAL        
   CONGLOMERATES 4.4%        
3M Company 405,800     30,199,636
General Electric Company 2,304,150     81,336,495
     
 
111,536,131
INSURANCE 3.4%        
Allstate Corporation (The) 124,200     7,791,066
American International        
     Group, Inc. 642,300     42,558,798
MetLife, Inc. 173,300     9,822,644
UnumProvident Corporation 489,300     9,487,527
XL Capital Ltd. Class A 243,800     16,749,059
        86,409,094
         
INTERNET SOFTWARE        
   AND SERVICES 2.0%
       
Google Inc. Class A* 61,900  
24,877,610
McAfee Inc.* 560,400     13,707,384
Yahoo! Inc.* 491,000     12,412,480
        50,997,474
MACHINERY 0.7%        
Illinois Tool Works Inc. 399,160     17,922,284
 
MEDIA 2.3%        
Clear Channel        
     Communications, Inc. 411,800     11,880,430
News Corp. Class A 777,400     15,275,910
Time Warner Inc. 1,700,900     31,007,407
        58,163,747
METALS AND MINING 0.9%        
Alcoa Inc. 447,600     12,550,704
Freeport-McMoRan Copper        
     & Gold Inc. Class B 177,500     9,453,650
        22,004,354
MULTI-UTILITIES 1.0%        
Dominion Resources, Inc. 188,900     14,448,961
DTE Energy Company 236,600     9,821,266
        24,270,227
MULTILINE RETAIL 1.4%        
Dollar General Corporation 1,770,300     24,129,189
Target Corp. 210,000     11,602,500
        35,731,689
OIL, GAS AND        
   CONSUMABLE FUELS 6.6%        
Chevron Corporation 599,000     38,851,140
ConocoPhillips 512,200     30,491,266
Exxon Mobil Corporation 912,100     61,201,910
Murphy Oil Corporation 373,525     17,761,114
Sunoco, Inc. 304,200     18,918,198
     
 
167,223,628
PHARMACEUTICALS 4.9%        
Forest Laboratories, Inc.* 351,600     17,794,476
Johnson & Johnson 150,607     9,780,419
Lilly Eli & Company 129,300     7,370,100
Pfizer Inc. 1,489,738     42,248,970
Valeant Pharmaceuticals        
     International 791,500     15,655,870
Wyeth 611,800     31,103,912
     
 
123,953,747

_________________
See footnotes on page 8.

5


Tri-Continental Corporation

Portfolio of Investments (unaudited)  
September 30, 2006

 
Shares
or Shares
Subject to
Call/Put
                 
Value
REAL ESTATE MANAGEMENT      
   AND DEVELOPMENT 0.3%        
Realogy Corporation* 283,050  
$
6,419,574
 
ROAD AND RAIL 0.1%        
Avis Budget Group, Inc.* 113,220     2,070,794
 
SEMICONDUCTORS AND        
   SEMICONDUCTOR        
   EQUIPMENT 1.9%        
Broadcom Corporation Class “A”*
426,000
    12,924,840
Marvell Technology Group Ltd.* 692,300     13,409,850
Maxim Integrated Products, Inc. 371,800     10,436,426
Texas Instruments Incorporated 344,500     11,454,625
        48,225,741
SOFTWARE 4.0%        
Activision, Inc.* 573,000     8,652,300
Business Objects S.A.* 434,700     14,818,923
Cogent Inc.* 2,256,000     30,974,880
Microsoft Corp. 1,697,956     46,405,137
     
 
100,851,240
SPECIALTY RETAIL 4.5%        
Abercrombie & Fitch Co. Class A 179,300     12,457,764
Best Buy Co., Inc. 600,000     32,136,000
Foot Locker, Inc. 801,600     20,240,400
The Home Depot, Inc. 837,400     30,372,498
Urban Outfitters, Inc.* 1,103,800     19,526,222
     
 
114,732,884
THRIFTS AND        
   MORTGAGE FINANCE 1.1%        
Fannie Mae 244,100     13,647,631
Freddie Mac 223,700     14,838,021
        28,485,652
TOBACCO 2.7%        
Altria Group, Inc. 904,580     69,245,599
 
WIRELESS        
   TELECOMMUNICATION        
   SERVICES 1.6%        
American Tower Corporation        
     Class A* 348,400     12,716,600
Sprint Nextel Corporation 1,566,700     26,868,905
        39,585,505
TOTAL COMMON STOCKS        
     AND WARRANTS    
 
2,108,482,268
         
OPTIONS PURCHASED 2.8%      
BEVERAGES 0.1%        
The Coca-Cola Company, Call        
     expiring January 2008 at $15 4,636  
3,106,120
 
BIOTECHNOLOGY 0.0%        
Pharmion Corporation, Call        
     expiring December 2006        
     at $17.5 2,668     1,200,600
 
COMMUNICATIONS        
   EQUIPMENT 0.3%        
Comverse Technology Inc., Call        
     expiring January 2008 at $20 11,622     5,927,220
Corning Incorporated, Call        
     expiring January 2007 at $22.5 7,706     2,620,040
        8,547,260
COMPUTERS AND        
   PERIPHERALS 0.2%        
Dell Inc., Call expiring        
     January 2008 at $25 13,002     3,705,570
Seagate Technology, Call        
     expiring January 2007 at $17.50 3,783     2,307,630
        6,013,200
CONSUMER FINANCE 0.2%        
Capital One Financial Corporation,        
     Call expiring January 2008 at $80 3,836     4,449,760
 
FOOD PRODUCTS 0.0%        
Kraft Foods Inc., Put        
     expiring March 2007 at $30 2,694     107,760
 
HEALTH CARE EQUIPMENT        
   AND SUPPLIES 0.4%        
Bausch & Lomb Inc., Call        
     expiring January 2008 at $50 3,365     2,877,075
Boston Scientific Corporation, Call        
     expiring January 2009 at $20 10,746     2,417,850
St. Jude Medical Inc. Call,        
     expiring January 2008 at $35 5,647     3,585,845
        8,880,770
INDUSTRIAL        
   CONGLOMERATES 0.0%        
3M Company, Call        
     expiring January 2009 at $80 446     374,640

_________________
See footnotes on page 8.

6


Tri-Continental Corporation

Portfolio of Investments (unaudited)  
September 30, 2006

  Shares Subject to
Call/Put, Partnership
Interest or Principal
Amount
   
Value
INTERNET SOFTWARE        
   AND SERVICES 0.2%        
eBay Inc., Call        
     expiring January 2008 at $30 4,969  shs.
$
2,484,500
Yahoo!, Inc., Call        
     expiring January 2009 at $30 4,910     2,307,700
        4,792,200
MULTILINE RETAIL 0.1%        
Dollar General Corp. Call        
     expiring January 2008 at $15 18,249     2,828,595
 
OIL, GAS AND        
   CONSUMABLE FUELS 0.0%        
Murphy Oil Corporation, Call        
     expiring January 2008 at $50 1,895     1,174,900
 
PHARMACEUTICALS 0.1%        
Bristol-Myers Squibb Company, Call      
     expiring January 2008 at $20 2,638     1,424,520
 
SEMICONDUCTORS AND SEMICONDUCTOR  
   EQUIPMENT 0.1%        
Marvell Technology Group, Ltd.,        
     Call expiring January 2009        
     at $20 5,331     3,518,460
 
SOFTWARE 0.5%        
Activision, Inc., Call        
     expiring January 2008 at $15 15,812     5,455,140
Cogent, Inc., Call        
     expiring December 2006 at $15 13,974     1,607,010
Cogent, Inc., Call        
     expiring March 2007 at $12.5 12,611     3,783,300
     
 
10,845,450
TOBACCO 0.5%        
Altria Group Inc., Call        
     expiring January 2008 at $85 12,180     4,993,800
Altria Group Inc., Call        
     expiring January 2008 at $80 8,116     4,707,280
Altria Group Inc., Call        
     expiring January 2008 at $75 3,148     2,612,840
     
 
12,313,920
       
WIRELESS        
   TELECOMMUNICATION        
   SERVICES 0.1%        
Sprint Nextel Corporation, Call        
     expiring January 2009 at $20 10,357  
2,433,895
TOTAL OPTIONS PURCHASED     72,012,050
 
TRI-CONTINENTAL        
   FINANCIAL        
   DIVISION0.1%        
WCAS Capital Partners II,        
     L.P. $4,301,124     1,801,926
Whitney Subordinated        
     Debt Fund, L.P. 1,214,850     19,478
TOTAL TRI-CONTINENTAL        
     FINANCIAL DIVISION       1,821,404
SHORT-TERM        
   HOLDINGS 12.4%        
CORPORATE NOTES 3.9%        
Goldman Sachs Group (The):        
     13%, 12/20/06††(1) 12,130,000     11,917,604
     8.25%, 7/27/07††(2) 11,675,060     11,780,077
     13.75%, 8/2/07††(3) 17,999,490     19,161,148
     9.8%, 9/27/07††(4) 12,009,268     12,175,883
Merrill Lynch & Co., Inc.        
     13.6%, 3/27/07††(5) 12,012,477     12,350,809
Morgan Stanley:        
     10.6%, 3/27/07††(6) 12,014,087     12,604,085
     10.25%, 8/25/07††(6) 19,194,138     19,674,588
        99,664,194
TIME DEPOSITS 7.7%        
Bank of Montreal,        
     5.3125%, 10/2/06 94,583,000     94,583,000
Royal Bank of Scotland,        
     5.34%, 10/2/06 100,000,000     100,000,000
        194,583,000
US TREASURY NOTES 0.8%        
US Treasury Notes        
     2.875%, 11/30/06 20,895,000 #   20,831,354
TOTAL SHORT-TERM        
     HOLDINGS       315,078,548

_________________
See footnotes on page 8.

7


Tri-Continental Corporation

Portfolio of Investments (unaudited)  
September 30, 2006

      Value
TOTAL      
   INVESTMENTS 98.5%  
$
2,497,394,270
OTHER ASSETS LESS  
 
   LIABILITIES 1.5%  
38,662,342
NET INVESTMENT  
 
   ASSETS 100.0%  
$
2,536,056,612


Schedule of Options Written (unaudited)  
September 30, 2006

    Shares        
    Subject to                      
    Call/Put    
Value
 
PUT OPTIONS WRITTEN            
Hewlett-Packard Company,            
     expiring November 2006            
     at $35  
540,500
 shs.
$
(513,475 )
Foot Locker Inc., expiring            
     November 2006 at $25   93,400     (126,090 )
TOTAL OPTIONS WRITTEN            
     (Premium received $1,059,254)      
$
(639,565 )

___________________
The cost of investments for federal income tax purposes was $2,565,556,820.
The tax basis gross unrealized appreciation and depreciation of portfolio securities were $41,304,043 and $109,466,593, respectively.
          *

Non-income producing security.

          †

At September 30, 2006, the Tri-Continental Financial Division comprised two investments that were purchased through private offerings and cannot be sold without prior registration under the Securities Act of 1933 or pursuant to an exemption therefrom. These investments are valued at fair value as determined in accordance with procedures approved by the Board of Directors of the Corporation. The acquisition dates of investments in the limited partnerships, along with their cost and values at September 30, 2006, were as follows:

 
Investments    
Acquisition Date(s)
          
Cost
          
Value
WCAS Capital Partners II, L.P.  
12/11/90 to 3/24/98
 
$
4,301,124
 
$
1,801,926
Whitney Subordinated Debt Fund, L.P.  
7/12/89 to 11/10/98
 
 
1,214,850
    19,478
       
$
5,515,974
 
$
1,821,404
††   The security may be offered and sold only to a “qualified institutional buyer” under Rule 144A of the Securities Act of 1933.
(1)   

These notes are exchangeable at maturity for the value of the common stock of five companies in the home building industry. The maturity value of each stock is limited to 115% of the stock’s price at the date of purchase of the notes.

(2)

These notes are exchangeable at maturity for the value of the common stock of Yahoo! (Internet Software and Services). The maturity value of the stock is limited to 120% of the stock’s price at the date of purchase of the notes.

(3)

These notes are exchangeable at maturity for the value of the common stock of Marvell Technology Group (Semiconductors and Semiconductor Equipment). The maturity value of the stock is limited to 120% of the stock’s price at the date of purchase of the notes.

(4)

These notes are exchangeable at maturity for the value of the common stock of Seagate Technology (Computers and Peripherals). The maturity value of the stock is limited to 120% of the stock’s price at the date of purchase of the notes.

(5)

These notes are exchangeable at maturity for the value of the common stock of Peabody Energy (Oil, Gas and Consumable Fuels). The maturity value of the stock is limited to 120% of the stock’s price at the date of purchase of the notes.

(6)

These notes are exchangeable at maturity for the value of the common stock of eBay (Internet Software and Services). The maturity value of the stock is limited to 120% of the stock’s price at the date of purchase of the notes.

# All or part of the security is held as collateral for options written. As of September 30, 2006, the value of securities held as collateral was $20,831,354.
ADR — American Depositary Receipt.
Security Valuation — Securities traded on an exchange are valued at the last sales price on the primary exchange or market on which they are traded. Fixed income securities not listed on an exchange or security market are valued by independent pricing services based on bid prices which consider such factors as coupons, maturities, credit ratings, liquidity, specific terms and features, and the US Treasury yield curve or are valued by J. & W. Seligman & Co. Incorporated (the “Manager”) based on quotations provided by primary market makers in such securities. Equity securities not listed on an exchange or security market, or equity securities for which there is no last sales price, are valued at the mean of the most recent bid and asked prices or are valued by the Manager based on quotations provided by primary market makers in such securities. Securities for which market quotations are not readily available (or are otherwise no longer valid or reliable) are valued at fair value determined in accordance with procedures approved by the Board of Directors. This can occur in the event of, among other things, natural disasters, acts of terrorism, market disruptions, intra-day trading halts, and extreme market volatility. The determination of fair value involves subjective judgments. As a result, using fair value to price a security may result in a price materially different from the prices used by other mutual funds to determine net asset value or the price that may be realized upon the actual sale of the security. Short-term holdings maturing in more than 60 days are valued at current market quotations. Short-term holdings maturing in 60 days or less are valued at amortized cost.

8


ITEM 2. CONTROLS AND PROCEDURES.

  a.      The registrant’s principal executive officer and principal financial officer have concluded, based upon their evaluation of the registrant’s disclosure controls and procedures as conducted within 90 days of the filing date of this report, that these disclosure controls and procedures provide reasonable assurance that material information required to be disclosed by the registrant in the report it files or submits on Form N-Q is recorded, processed, summarized and reported, within the time periods specified in the Commission’s rules and forms and that such material information is accumulated and communicated to the registrant’s management, including its principal executive officer and principal financial officer, as appropriate, in order to allow timely decisions regarding required disclosure.
 
  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 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 as required by Rule 30a-2(a) under the Investment Company Act of 1940.

 


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.

TRI-CONTINENTAL CORPORATION


By:  /S/ BRIAN T. ZINO 
  Brian T. Zino 
  President and Chief Executive Officer 
 
Date:  November 27, 2006 

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 in the capacities and on the dates indicated.

By:  /S/ BRIAN T. ZINO 
  Brian T. Zino 
  President and Chief Executive Officer 
 
Date:  November 27, 2006 



By:  /S/ LAWRENCE P. VOGEL 
  Lawrence P. Vogel 
  Vice President, Treasurer and Chief Financial Officer 
 
Date:  November 27, 2006 

 


TRI-CONTINENTAL CORPORATION

EXHIBIT INDEX

(a)      Certifications of principal executive officer and principal financial officer as required by Rule 30a-2(a) under the Investment Company Act of 1940.