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 811-5221

Seligman Portfolios, Inc.

(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: 3/31/06

FORM N-Q

ITEM 1.  SCHEDULE OF INVESTMENTS.

Seligman Portfolios, Inc.

Schedules of Investments (Unaudited)

March 31, 2006

Seligman Capital Portfolio

	Shares or Principal Amount			Value
Common Stocks 98.2%
Aerospace and Defense 1.7%
Precision Castparts		1,600	shs.	$	95,040
Rockwell Collins		2,400			135,240
					230,280
Air Freight and Logistics 0.5%
Expeditors International of Washington		800			69,100
Airlines 1.1%
Southwest Airlines		8,400			151,116
Auto Components 2.1%
BorgWarner		2,300			138,092
Gentex		7,700			134,404
					272,496
Biotechnology 5.1%
BioMarin Pharmaceutical*		2,800			37,366
Celgene*		4,000			176,520
Enzon Pharmaceuticals*		4,800			38,832
Illumina*		1,700			40,341
ImClone Systems*		1,400			47,572
Invitrogen*		800			56,100
Martek Biosciences*		1,700			55,777
MedImmune*		3,050			111,554
Nektar Therapeutics*		1,400			28,525
OSI Pharmaceuticals*		1,400			44,905
Senomyx*		2,200			36,201
					673,693
Capital Markets 3.4%
Legg Mason		900			112,797
Northern Trust		3,300			173,200
T. Rowe Price Group		2,100			164,356
					450,353
Chemicals 0.4%
Airgas		1,500			58,635
Commercial Banks 0.8%
Synovus Financial		3,800			102,942
Commercial Services and Supplies 9.0%
Allied Waste Industries*		19,600			239,904
Avery Dennison		2,700			157,896
Cintas		6,900			294,492
Corrections Corporation of America*		4,200			189,840
Herman Miller		9,700			314,231
					1,196,363
Communications Equipment 2.7%
ADC Telecommunications*		6,100			155,733
JDS Uniphase*		17,600			72,952
Research In Motion*		1,500			127,155
					355,840
Computers and Peripherals 3.5%
Electronics for Imaging*		4,300			120,336
Network Appliance*		2,300			82,858
SanDisk*		1,400			80,402
Seagate Technology*		6,600			173,778
					457,374

Construction and Engineering 4.2%
Fluor	2,200	188,760
Jacobs Engineering Group*	4,300	372,982
		561,742
Containers and Packaging 2.5%
Pactiv*	5,400	132,516
Temple-Inland	4,400	196,020
		328,536
Diversified Financial Services 1.9%
Chicago Mercantile Exchange Holdings	300	134,250
Moody's	1,700	121,482
		255,732
Electrical Equipment 0.9%
Rockwell Automation	1,600	115,056
Electronic Equipment and Instruments 1.3%
Agilent Technologies*	4,700	176,485
Energy Equipment and Services 2.2%
BJ Services	2,600	89,960
Patterson-UTI Energy*	2,000	63,910
Smith International	3,700	144,152
		298,022
Energy Traders 0.8%
AES*	6,200	105,772
Food and Staples Retailing 0.5%
Whole Foods Market	1,000	66,540
Food Products 1.7%
Dean Foods*	3,600	139,788
McCormick	2,700	91,422
		231,210
Gas Utilities 0.3%
Equitable Resources	1,100	40,161
Health Care Equipment and Supplies 3.4%
Conor Medsystems*	2,600	76,336
Cooper Companies	1,300	70,239
Given Imaging*	1,500	34,672
Quidel*	2,800	36,092
SonoSite*	1,500	60,930
Varian Medical Systems*	1,300	73,008
Waters*	2,300	99,245
		450,522
Health Care Providers and Services 6.0%
Covance*	1,600	94,000
Coventry Health Care*	700	37,786
Eclipsys*	2,800	66,164
Express Scripts*	1,500	131,873
IMS Health	4,100	105,657
Laboratory Corporation of America Holdings*	600	35,088
McKesson	1,000	52,130
Nighthawk Radiology Holdings*	1,400	33,691
Omnicell*	2,900	33,017
Patterson*	2,900	102,051
Quest Diagnostics	700	35,910
The TriZetto Group*	3,700	64,824
		792,191

Hotels, Restaurants and Leisure 3.1%
International Game Technology	3,000	105,660
OSI Restaurant Partners	3,000	132,000
Sonic*	5,000	175,425
		413,085
Household Durables 1.2%
Fortune Brands	2,000	161,260
Insurance 1.6%
Arch Capital Group*	1,300	75,030
Philadelphia Consolidated Holding*	1,800	61,353
RLI	1,200	68,760
		205,143
Internet Software and Services 0.4%
j2 Global Communications*	1,200	56,394
IT Services 5.7%
Amdocs*	8,300	299,298
Cognizant Technology Solutions (Class A)*	2,300	136,769
Iron Mountain*	1,300	52,962
Paychex	3,300	137,329
Satyam Computer Services (ADR)	3,100	135,656
		762,014
Metals and Mining 0.6%
Freeport-McMoRan Copper & Gold (Class B)	1,400	83,678
Multiline Retail 2.0%
Family Dollar Stores	10,200	271,320
Oil, Gas and Consumable Fuels 3.3%
EOG Resources	2,100	151,200
Kinder Morgan	700	64,393
Noble Energy	3,200	140,544
Sunoco	1,000	77,570
		433,707
Personal Products 4.6%
Chattem*	3,400	127,976
Elizabeth Arden*	4,300	100,254
NBTY*	17,200	387,344
		615,574
Pharmaceuticals 2.9%
Allergan	700	75,950
Forest Laboratories*	2,600	116,038
K-V Pharmaceutical (Class A)*	2,000	48,240
Mylan Laboratories	2,800	65,520
Penwest Pharmaceuticals*	1,700	36,865
Sepracor*	800	39,020
		381,633
Semiconductors and Semiconductor Equipment 4.3%
Agere Systems*	18,100	272,224
Analog Devices	1,800	68,922
Linear Technology	2,600	91,234
Vitesse Semiconductor*	21,400	76,505
Xilinx	2,500	63,700
		572,585

Software 3.9%
Activision*		5,200		71,682
Autodesk		1,800		69,399
Cogent*		14,600		266,596
Cognos*		2,800		108,990
				516,667
Specialty Retail 7.0%
Bed Bath & Beyond*		8,800		337,964
Chico's FAS*		1,500		60,960
Guitar Center*		3,700		176,471
Limited Brands		7,600		185,896
TJX		3,100		76,942
Tractor Supply*		1,400		92,820
				931,053
Thrifts and Mortgage Finance 0.6%
Hudson City Bancorp		5,600		74,340
Wireless Telecommunication Services 1.0%
NII Holdings (Class B)*		2,200		129,646
Total Common Stocks				13,048,260
Repurchase Agreement 1.2%
State Street Bank & Trust 4.06%, dated 3/31/2006, maturing 4/3/2006, in the amount of $152,041, collateralized by: $160,000 US Treasury Notes 4.625%, 3/31/2008 with a fair market value of $159,400	$	152,000		152,000
Total Investments 99.4%				13,200,260
Other Assets Less Liabilities 0.6%				85,083
Net Assets 100.0%			$	13,285,343

_____

See accompanying notes.

Seligman Cash Management Portfolio

	Annualized Yield on Purchase Date			Principal Amount		Value
US Government and Government
Agency Securities 37.5%
US Government Securities 16.6%
US Treasury Bills:
4.34%, 4/13/2006		4.40	%	$	1,000,000	$	998,553
4.0775%, 4/17/2006		4.13			500,000		499,094
4.385%, 4/20/2006		4.45			800,000		798,149
Total US Government Securities							2,295,796
US Government Agency Securities 20.9%
Federal Home Loan Bank 4.621%, 4/19/2006		4.69			900,000		897,921
Federal Home Loan Mortgage 4.515%, 4/11/2006		4.58			1,000,000		998,746
Federal National Mortgage Association 4.76%, 6/28/2006		4.83			1,000,000		988,364
Total US Government Agency Securities							2,885,031
Total US Government and Government
Agency Securities							5,180,827
Fixed Time Deposits 29.5%
Bank of Montreal, Toronto 4.75%, 4/3/2006		4.82			680,000		680,000
BNP Paribas, Grand Cayman 4.75%, 4/3/2006		4.82			680,000		680,000
Citibank, N.A., Nassau 4.71%, 4/5/2006		4.78			680,000		680,000
HSBC, Grand Cayman 4.75%, 4/5/2006		4.82			680,000		680,000
Rabobank, Grand Cayman 4.72%, 4/4/2006		4.79			680,000		680,000
Royal Bank of Scotland, Grand Cayman 4.76%, 4/4/2006		4.83			680,000		680,000
							4,080,000
Repurchase Agreement 21.3%
State Street Bank & Trust 4.06%, dated 3/31/2006, maturing 4/3/2006, in the amount of $2,948,997, collateralized by: $3,050,000 US Treasury Notes 4.625%, 3/31/2008 with a fair market value of $3,038,563		4.12			2,948,000		2,948,000
Commercial Paper 15.5%
AIG Funding 4.59%, 4/10/2006		4.65			700,000		699,197
American Express Credit 4.53%, 4/7/2006		4.59			740,000		739,441
General Electric Capital 4.71%, 5/10/2006		4.78			700,000		696,428
							2,135,066
Total Investments 103.8%							14,343,893
Other Assets Less Liabilities (3.8)%							(520,225	)
Net Assets 100.0%						$	13,823,668

_____

See accompanying notes.

Seligman Common Stock Portfolio

	Shares, Warrants, Shares Subject to Call/ Put or Principal Amount			Value
Common Stocks and Warrants 94.0%
Aerospace and Defense 1.7%
General Dynamics		600	shs.	$	38,388
Honeywell International		2,300			98,371
					136,759
Air Freight and Logistics 0.4%
FedEx		300			33,882
Beverages 2.0%
Coca-Cola		1,800			75,366
Coca-Cola Enterprises		2,200			44,748
PepsiCo		700			40,453
					160,567
Biotechnology 2.0%
Amgen*		1,100			80,284
Pharmion*		4,643			83,713
					163,997
Building Products 0.4%
Masco		1,100			35,739
Capital Markets 2.5%
Bank of New York		1,900			68,476
Merrill Lynch		1,100			86,636
Morgan Stanley		690			43,346
					198,458
Chemicals 2.6%
Dow Chemical		2,000			81,200
E.I. du Pont de Nemours		2,000			84,420
Praxair		800			44,120
					209,740
Commercial Banks 3.2%
Bank of America		3,740			170,320
Wachovia		1,540			86,317
					256,637
Commercial Services and Supplies 1.6%
Cendant		4,800			83,280
Waste Management		1,200	(1)		42,360
					125,640
Communications Equipment 6.1%
Cisco Systems*		5,170			112,060
Corning*		3,900			104,949
Lucent Technologies*		23,100			70,455
Lucent Technologies* (exercise price of $2.75, expiring 12/10/2007)		37,720	wts.		23,575
Nokia (ADR)		6,100	shs.		126,392
QUALCOMM		1,100			55,666
					493,097
Computers and Peripherals 4.1%
Apple Computer*		900			56,443
EMC*		6,600			89,958
International Business Machines		1,820			150,095
Seagate Technology*		1,400			36,862
					333,358
Containers and Packaging 1.3%
Smurfit-Stone Container*		7,700			104,412
Diversified Consumer Services 0.4%
ServiceMaster		2,600			34,112

Diversified Financial Services 5.2%
CIT Group	600	32,112
Citigroup	4,760	224,815
JPMorgan Chase	3,840	159,898
		416,825
Diversified Telecommunication Services 2.2%
BellSouth	3,800	131,670
Citizens Communications	3,600	47,772
		179,442
Electronic Equipment and Instruments 0.4%
Symbol Technologies	3,300	34,914
Energy Equipment and Services 1.2%
Halliburton	1,300	94,926
Food and Staples Retailing 1.4%
CVS	2,400	71,688
Wal-Mart Stores	910	42,988
		114,676
Food Products 0.3%
Hershey	500	26,115
Health Care Equipment and Supplies 1.4%
Boston Scientific*	2,200	50,710
Medtronic	1,200	60,900
		111,610
Health Care Providers and Services 3.2%
Aetna	800	39,312
HCA	1,000	45,790
UnitedHealth Group	1,200	67,032
WellPoint*	1,400	108,402
		260,536
Hotels, Restaurants and Leisure 0.9%
McDonald's	2,100	72,156
Industrial Conglomerates 4.4%
General Electric	8,410	292,500
Tyco International	2,320	62,362
		354,862
Insurance 3.0%
Allstate	500	26,055
American International Group	1,600	105,744
MetLife	600	29,022
UnumProvident	1,600	32,768
XL Capital (Class A)	800	51,288
		244,877
Internet Software and Services 3.7%
Google (Class A)*	300	115,888
McAfee*	1,900	46,227
Symantec*	3,085	52,059
Yahoo!*	2,600	83,967
		298,141
IT Services 0.4%
First Data	600	28,092
Machinery 0.9%
Illinois Tool Works	790	76,085

Media 5.2%
Clear Channel Communications*	2,520		73,105
Comcast (Class A)*	2,200		57,695
News Corp. (Class A)	3,800		63,118
Time Warner*	6,390		107,288
Univision Communications (Class A)*	2,380		82,039
Viacom (Class B)*	900		34,920
			418,165
Metals and Mining 0.8%
Alcoa	2,200		67,232
Multi-Utilities 0.5%
Dominion Resources	600		41,418
Multiline Retail 2.5%
Dollar General	4,700		83,049
Federated Department Stores	700		51,100
Kohl's*	1,300		68,913
			203,062
Oil, Gas and Consumable Fuels 6.2%
Chevron	1,700		98,549
ConocoPhillips	1,700		107,355
El Paso	1,700		20,485
Exxon Mobil	2,850	(1)	173,451
Murphy Oil	840		41,849
Sunoco	750		58,177
			499,866
Pharmaceuticals 6.9%
Forest Laboratories*	1,500		66,945
Johnson & Johnson	1,642		97,239
Eli Lilly	800		44,240
Pfizer	6,300		156,996
Schering-Plough	1,100		20,889
Valeant Pharmaceuticals International	4,200		66,570
Wyeth	2,070		100,437
			553,316
Semiconductors and Semiconductor Equipment 0.7%
Maxim Integrated Products	1,500		55,732
Software 5.3%
Business Objects (ADR)*	1,200		43,782
Cogent*	4,800		87,648
Mercury Interactive*	2,815		97,610
Microsoft	7,170		195,275
			424,315
Specialty Retail 2.0%
Abercrombie & Fitch (Class A)	1,800		104,940
Home Depot	1,400		59,220
			164,160
Thrifts and Mortgage Finance 1.2%
Fannie Mae	1,200		61,680
Freddie Mac	600		36,600
			98,280
Tobacco 3.7%
Altria Group	2,670		189,196
UST	2,595		107,952
			297,148

Wireless Telecommunication Services 2.1%
American Tower (Class A)*	2,800	84,896
Sprint Nextel	3,300	85,272
		170,168
Total Common Stocks and Warrants		7,592,517
Options Purchased* 2.5%
Beverages 0.3%
Coca-Cola Enterprises, Call expiring January 2008 at $15	2,900	19,865
Communications Equipment 0.3%
Cisco Systems, Call expiring January 2008 at $17.50	1,600	10,720
Comverse Technology, Call expiring January 2008 at $20	1,800	12,780
		23,500
Computers and Peripherals 0.2%
Apple Computer, Call expiring April 2006 at $85	600	30
Seagate Technology, Call expiring January 2007 at $17.50	1,600	15,520
		15,550
Hotels, Restaurants and Leisure 0.2%
McDonald's, Call expiring January 2008 at $30	2,100	16,275
Industrial Conglomerates 0.1%
Tyco International, Call expiring January 2008 at $25	1,900	10,640
Metals and Mining 0.1%
Alcoa, Call expiring January 2008 at $25	1,300	10,660
Oil, Gas and Consumable Fuels 0.2%
ConocoPhillips, Call expiring January 2007 at $75	3,000	7,650
Exxon Mobil, Call expiring January 2007 at $80	20,300	7,714
		15,364
Pharmaceuticals 0.0%
Valeant Pharmaceuticals International, Call expiring September 2006 at $20	200	60
Software 0.5%
Activision, Call expiring January 2008 at $15	3,300	9,900
Mercury Interactive, Call expiring January 2008 at $20	1,500	25,950
		35,850
Thrifts and Mortgage Finance 0.1%
Fannie Mae, Call expiring September 2006 at $70	4,900	490
Freddie Mac, Call expiring January 2008 at $55	800	9,120
		9,610
Tobacco 0.5%
Altria Group, Call expiring January 2008 at $70	1,000	9,700
Altria Group, Call expiring January 2008 at $75	1,100	8,140
Altria Group, Call expiring January 2008 at $80	2,300	12,420
Altria Group, Call expiring January 2008 at $85	3,300	4,785
UST, Call expiring July 2006 at $35	900	6,300
		41,345
Total Options Purchased		198,719

Short-Term Holdings 3.1%
US Government Securities 2.0%
US Treasury Notes 2.25%, 4/30/2006	$	159,000	(1)		158,714
Repurchase Agreement 1.1%
State Street Bank & Trust 4.06%, dated 3/31/2006, maturing 4/3/2006, in the amount of $91,031, collateralized by: $95,000 US Treasury Notes 4.625%, 3/31/2008 with a fair market value of $94,644		91,000			91,000
Total Short-Term Holdings					249,714
Total Investments 99.6%					8,040,950
Other Assets Less Liabilities 0.4%					34,238
Net Assets 100.0%				$	8,075,187

	Shares Subject to Call/ Put
Schedule of Options Written
Options Written
Call Options Written
Exxon Mobil, expiring April 2006 at $60		500	$	(775	)
Waste Management, expiring April 2006 at $32.50		800		(2,240	)
				(3,015	)
Put Options Written
Comverse Technology, expiring April 2006 at $22.50		800		(320	)
Sunoco, expiring April 2006 at $75		400		(520	)
Valeant Pharmaceuticals International, expiring April 2006 at $17.50		500		(850	)
				(1,690	)
Total Options Written			$	(4,705	)

_____

See accompanying notes.

Seligman Communications and Information Portfolio

	Shares, Shares Subject to Put or Principal Amount			Value
Common Stocks 96.6%
Application Software 15.0%
Autodesk		8,200	shs.	$	315,864
BEA Systems*		39,600			518,958
Cognos*		18,200			708,435
Mercury Interactive*		94,300			3,269,853
Microsoft		142,800			3,889,158
Quest Software*		42,100			702,439
					9,404,707
Biotechnology 0.8%
Invitrogen*		7,500			525,938
Communications Equipment 9.4%
Avocent*		8,000			253,880
Cisco Systems*		64,300			1,393,703
Corning*		37,200			1,001,052
Motorola		31,800			728,538
Nokia (ADR)		16,300			337,736
QUALCOMM		33,800			1,710,449
TomTom*		13,100			463,985
					5,889,343
Computers and Peripherals 10.8%
Apple Computer*		5,200			326,118
Avid Technology*		13,700			595,333
Electronics for Imaging*		13,700			383,394
EMC*		108,300			1,476,129
Emulex		16,800			287,112
Hewlett-Packard		32,500			1,069,250
Seagate Technology*		98,600			2,596,138
					6,733,474
Consumer Software 0.8%
THQ*		19,200			496,320
Electronic Equipment and Instruments 3.5%
Amphenol (Class A)		18,300			954,894
HOYA		11,700			472,501
Orbotech*		30,600			753,219
					2,180,614
Health Care Equipment and Supplies 4.3%
C.R. Bard		7,900			535,699
Beckman Coulter		3,300			180,081
Fisher Scientific International*		17,500			1,190,875
Kinetic Concepts*		15,700	(1)		646,369
Zimmer Holdings*		1,900			128,440
					2,681,464
Internet and Catalog Retail 1.2%
Netflix*		25,500			738,608
Internet Software and Services 11.7%
Digital River*		18,100			788,436
McAfee*		125,300			3,048,549
Symantec*		175,583			2,962,963
VeriSign*		20,500			492,615
					7,292,563
IT Services 5.8%
Amdocs*		87,900			3,169,674
First Data		9,100			426,062
Ness Technologies		1,500			18,862
					3,614,598

Semiconductors and Semiconductor Equipment 18.7%
Advanced Micro Devices*		18,000		596,880
Altera*		15,500		319,843
ARM Holdings		18,060		41,894
ASML Holding (NY shares)*		50,300		1,024,863
Cymer*		19,000		863,265
Freescale Semiconductor (Class A)*		45,300		1,259,793
Integrated Device Technology*		73,000		1,084,415
Lam Research*		14,700		632,614
Linear Technology		24,900		873,741
Maxim Integrated Products		23,400		869,427
Monolithic Power Systems*		31,000		578,305
Samsung Electronics		1,350		875,315
Silicon Laboratories*		5,200		285,714
Taiwan Semiconductor Manufacturing		336,000		664,578
Taiwan Semiconductor Manufacturing (ADR)		15,700		157,942
Tessera Technologies*		9,900		317,245
Texas Instruments		19,700		639,659
Xilinx		24,300		619,164
				11,704,657
Systems Software 5.6%
CA		11,000		299,310
Macrovision*		17,000		376,465
Oracle*		145,500		1,992,622
Red Hat*		30,200		844,845
				3,513,242
Technical Software 7.1%
Cadence Design Systems*		75,000		1,386,375
Synopsys*		135,600		3,028,626
				4,415,001
Wireless Telecommunication Services 1.9%
Alltel		9,700		628,075
Sprint Nextel		22,100		571,064
				1,199,139
Total Common Stocks				60,389,668
Options Purchased* 0.1%
Health Care Equipment and Supplies 0.1%
Kinetic Concepts, Put expiring September 2006 at $40		13,500		75,600
Repurchase Agreement 1.8%
State Street Bank & Trust 4.06%, dated 3/31/2006, maturing 4/3/2006, in the amount of $1,144,387, collateralized by: $1,185,000 US Treasury Notes 4.625%, 3/31/2008 with a fair market value of $1,180,556	$	1,144,000		1,144,000
Total Investments 98.5%				61,609,268
Other Assets Less Liabilities 1.5%				938,626
Net Assets 100.0%			$	62,547,894

	Shares Subject to Call
Options Written
Kinetic Concepts, Call expiring June 2006 at $45		13,500	$	(22,950	)

_____

See accompanying notes.

Seligman Global Technology Portfolio

	Shares		Value
Common Stocks 88.7%
Canada 1.1%
Cognos* (Application Software)		2,900	$	112,883
Finland 1.7%
Nokia (ADR) (Communications Equipment)		6,800		140,896
TietoEnator (IT Services)		900		35,171
				176,067
France 0.9%
Atos Origin* (IT Services)		1,177		87,235
Hong Kong 0.2%
Solomon Systech International (Semiconductors and Semiconductor Equipment)		35,000		16,953
Israel 0.8%
Ness Technologies (IT Services)		200		2,515
Orbotech* (Electronic Equipment and Instruments)		3,400		83,691
				86,206
Japan 6.1%
Canon (Office Electronics)		2,300		151,938
HOYA (Electronic Equipment and Instruments)		3,600		145,353
Keyence (Electronic Equipment and Instruments)		220		57,121
Murata Manufacturing (Electronic Equipment and Instruments)		1,300		88,074
Ohara (Electronic Equipment and Instruments)		800		41,614
Sanken Electric (Semiconductors and Semiconductor Equipment)		2,700		46,250
Sega Sammy Holdings (Leisure Equipment and Products)		2,300		93,450
				623,800
Netherlands 2.3%
ASML Holding (NY shares)* (Semiconductors and Semiconductor Equipment)		6,100		124,287
TomTom* (Communications Equipment)		3,060		108,222
				232,509
Singapore 1.3%
STATS ChipPAC* (Semiconductors and Semiconductor Equipment)		10,500		82,582
United Test and Assembly Center* (Semiconductors and Semiconductor Equipment)		85,000		48,406
				130,988
South Korea 2.5%
LG Micron* (Electronic Equipment and Instruments)		610		32,147
NCsoft* (Internet Software and Services)		710		52,119
Samsung Electronics (Semiconductors and Semiconductor Equipment)		260		168,135
				252,401
Spain 0.3%
Telvent Git* (IT Services)		2,200		29,931
Sweden 0.4%
Telefonaktiebolaget LM Ericsson (ADR) (Communications Equipment)		1,200		45,270
Taiwan 5.0%
ChipMOS TECHNOLOGIES (Bermuda)* (Semiconductors and Semiconductor Equipment)		6,700		47,838
High Tech Computer (Computers and Peripherals)		2,000		54,507
Himax Technologies (ADR)* (Semiconductors and Semiconductor Equipment)		2,500		21,887
Hon Hai Precision Industry (Electronic Equipment and Instruments)		11,936		73,621
Taiwan Semiconductor Manufacturing (Semiconductors and Semiconductor Equipment)		62,000		122,282
Taiwan Semiconductor Manufacturing (ADR) (Semiconductors and Semiconductor Equipment)		4,900		49,294
United Microelectronics (Semiconductors and Semiconductor Equipment)		160,000		100,756
Wistron* (Computers and Peripherals)		40,000		47,869
				518,054
United Kingdom 0.1%
ARM Holdings (Semiconductors and Semiconductor Equipment)		5,628		12,955

UnIted States 66.0%
Advanced Micro Devices* (Semiconductors and Semiconductor Equipment)	2,800		92,848
Alltel (Wireless Telecommunication Services)	1,500		97,125
Altera* (Semiconductors and Semiconductor Equipment)	2,400		49,524
Amdocs* (IT Services)	12,700		457,962
Amphenol (Class A) (Electronic Equipment and Instruments)	2,800		146,104
Apple Computer* (Computers and Peripherals)	800		50,172
Autodesk (Application Software)	1,400		53,977
Avid Technology* (Computers and Peripherals)	2,700		117,328
Avocent* (Communications Equipment)	1,200		38,082
BEA Systems* (Application Software)	6,100		79,941
CA (Systems Software)	1,600		43,536
Cadence Design Systems* (Technical Software)	10,100		186,698
Cisco Systems* (Communications Equipment)	3,400		73,695
Comverse Technology* (Communications Equipment)	1,600		37,664
Corning* (Communications Equipment)	4,800		129,168
Cymer* (Semiconductors and Semiconductor Equipment)	2,500		113,587
Digital River* (Internet Software and Services)	2,800		121,968
Electronics for Imaging* (Computers and Peripherals)	2,100		58,769
EMC* (Computers and Peripherals)	16,200		220,806
Emulex (Computers and Peripherals)	2,600		44,434
First Data (IT Services)	1,500		70,230
Fisher Scientific International* (Health Care Equipment and Supplies)	1,000		68,050
Freescale Semiconductor (Class A)* (Semiconductors and Semiconductor Equipment)	5,300		147,393
Hewlett-Packard (Computers and Peripherals)	5,100		167,790
Integrated Device Technology* (Semiconductors and Semiconductor Equipment)	11,300		167,862
Invitrogen* (Biotechnology)	1,200		84,150
Kinetic Concepts* (Health Care Equipment and Supplies)	1,100		45,287
Lam Research* (Semiconductors and Semiconductor Equipment)	2,200		94,677
Linear Technology (Semiconductors and Semiconductor Equipment)	2,500		87,725
Macrovision* (Systems Software)	2,700		59,791
Maxim Integrated Products (Semiconductors and Semiconductor Equipment)	4,500		167,198
McAfee* (Internet Software and Services)	13,800		335,754
Mercury Interactive* (Application Software)	8,200		284,335
Microsoft (Application Software)	17,500		476,613
Micrus Endovascular* (Health Care Equipment and Supplies)	900		12,654
Motorola (Communications Equipment)	4,900		112,259
Netflix* (Internet and Catalog Retail)	3,600		104,274
Oracle* (Systems Software)	14,000		191,730
QUALCOMM (Communications Equipment)	4,700		237,844
Quest Software* (Application Software)	6,500		108,452
Red Hat* (Systems Software)	4,200		117,495
Seagate Technology* (Computers and Peripherals)	11,300		297,530
Silicon Laboratories* (Semiconductors and Semiconductor Equipment)	700		38,462
Sprint Nextel (Wireless Telecommunication Services)	4,900		126,616
Symantec* (Internet Software and Services)	19,177		323,607
Synopsys* (Technical Software)	10,100		225,583
Tessera Technologies* (Semiconductors and Semiconductor Equipment)	1,400		44,863
Texas Instruments (Semiconductors and Semiconductor Equipment)	3,100		100,657
THQ* (Consumer Software)	2,900		74,965
VeriSign* (Internet Software and Services)	3,100		74,493
Xilinx (Semiconductors and Semiconductor Equipment)	3,700		94,276
Zimmer Holdings* (Health Care Equipment and Supplies)	300		20,280
			6,776,283
Total Investments 88.7%			9,101,535
Other Assets Less LiabilIties 11.3%			1,162,706
Net Assets 100.0%		$	10,264,241

_____

See accompanying notes.

Seligman International Growth Portfolio

	Shares or Warrants			Value
Common Stocks and Warrants 97.5%
Austria 0.7%
Erste Bank Der Oesterreichischen Sparkassen* (Commercial Banks)		484	shs.	$	28,541
Belgium 2.8%
KBC Groep (Commercial Banks)		472			50,660
SES Global (FDR) (Media)		4,048			64,464
					115,124
Canada 5.7%
Cameco (Oil, Gas and Consumable Fuels)		1,400			50,400
Inco (Metals and Mining)		900			44,901
Petro-Canada (Oil, Gas and Consumable Fuels)		800			37,936
SNC-Lavalin Group (Construction and Engineering)		1,581			43,172
Suncor Energy (Oil, Gas and Consumable Fuels)		800			61,398
					237,807
Finland 2.2%
Nokia (ADR) (Communications Equipment)		4,500			93,240
France 19.8%
Alstom* (Electrical Equipment)		462			38,563
Altran Technologies* (IT Services)		2,261			30,890
Dassault Systemes (Software)		945			54,079
Essilor International (Health Care Equipment and Supplies)		446			39,738
Groupe Danone (Food Products)		526			64,317
LVMH Moet Hennessy Louis Vuitton (Textiles, Apparel and Luxury Goods)		787			77,044
PPR* (Multiline Retail)		295			35,575
PSA Peugeot Citroen (Automobiles)		914			57,491
Publicis Groupe (Media)		315			12,267
Sanofi Aventis (Pharmaceuticals)		868			82,592
Total (Oil, Gas and Consumable Fuels)		220			57,994
Unibail (Real Estate)		415			74,941
Vallourec (Machinery)		70			67,557
Veolia Environnement (Multi-Utilities)		2,326			129,093
					822,141
Germany 6.1%
Commerzbank* (Commercial Banks)		2,481			98,759
Hypo Real Estate Holding (Thrifts and Mortgage Finance)		310			21,182
SAP (Software)		241			52,357
Siemens (Industrial Conglomerates)		892			83,179
					255,477
Greece 0.7%
OPAP (Hotels, Restaurants and Leisure)		761			29,059
Hong Kong 0.8%
Shun Tak Holdings (Real Estate)		22,000			31,457
India 0.6%
Bharti Tele-Ventures (exercise price of $0.934, expiring 1/19/2009)* (Wireless Telecommunication Services)		3,000	wts.		26,337
Ireland 1.1%
Ryanair Holdings (ADR)* (Airlines)		800	shs.		43,756
Israel 1.5%
Teva Pharmaceutical Industries (ADR) (Pharmaceuticals)		1,500			61,770

Italy 1.2%
UniCredito Italiano (Commercial Banks)	7,097	51,184
Japan 16.7%
Credit Saison (Consumer Finance)	400	22,053
Dentsu (Media)	11	39,920
Eisai (Pharmaceuticals)	1,200	52,319
JSR (Chemicals)	2,100	62,476
JTEKT(Machinery)	1,000	19,974
Matsushita Electric Industrial (Household Durables)	2,000	44,315
Mitsubishi UFJ Financial Group (Commercial Banks)	3	45,696
Nippon Electric Glass (Electronic Equipment and Instruments)	2,000	49,743
Rakuten (Internet and Catalog Retail)	95	86,416
Sharp (Household Durables)	4,000	70,892
Shinsei Bank (Commercial Banks)	6,000	42,015
Sumitomo Realty & Development (Real Estate)	1,000	27,692
Tokyo Electron (Semiconductors and Semiconductor Equipment)	800	55,224
Toyota Motor (Automobiles)	1,400	76,257
		694,992
Luxembourg 0.9%
Tenaris (ADR) (Energy Equipment and Services)	200	36,134
Mexico 3.6%
America Movil (Class L) (ADR) (Wireless Telecommunication Services)	2,100	71,946
Grupo Televisa (ADR) (Media)	4,000	79,600
		151,546
Netherlands 3.9%
ASML Holding* (Semiconductors and Semiconductor Equipment)	2,705	54,975
Euronext (Diversified Financial Services)	806	66,275
Philips Electronics (Household Durables)	1,265	42,681
		163,931
Norway 0.6%
Statoil (Oil, Gas and Consumable Fuels)	850	24,221
South Korea 2.8%
Hana Financial Group (Commercial Banks)	8	377
Lotte Shopping (GDR)* (Distributors)	1,356	27,364
Samsung Electronics (Semiconductors and Semiconductor Equipment)	135	87,301
		115,042
Spain 1.0%
Banco Bilbao Vizcaya Argentaria (Commercial Banks)	1,984	41,372
Sweden 1.6%
Atlas Copco (A Shares) (Machinery)	600	16,817
Telefonaktiebolaget LM Ericsson (B Shares) (Communications Equipment)	13,000	49,235
		66,052
Switzerland 8.3%
Kuehne & Nagel International (Marine)	152	49,266
Logitech International* (Computers and Peripherals)	1,403	55,857
Nestle (Food Products)	134	39,783
Roche Holding (Pharmaceuticals)	450	67,011
Swatch Group (Textiles, Apparel and Luxury Goods)	1,299	45,244
UBS (Capital Markets)	820	89,818
		346,979
Taiwan 0.7%
Hon Hai Precision Industry (Electronic Equipment and Instruments)	5,000	30,840

United Kingdom 14.2%
ARM Holdings (Semiconductors and Semiconductor Equipment)	17,620		40,559
AstraZeneca (Pharmaceuticals)	791		39,813
Carphone Warehouse Group (Specialty Retail)	15,352		82,442
EMI Group (Media)	16,726		73,539
Kingfisher (Specialty Retail)	12,076		50,175
London Stock Exchange (Diversified Financial Services)	4,300		78,826
Pearson (Media)	3,590		49,764
Reckitt Benckiser (Household Products)	3,000		105,610
Standard Chartered (Commercial Banks)	2,756		68,525
			589,253
Total Common Stocks and Warrants			4,056,255
Preferred Stocks 1.6%
Austria 0.6%
Erste Bank der Oesterreichischen Sparkassen (Commercial Banks)	437		25,393
Germany 1.0%
ProSiebenSat.1 Media (Media)	1,546		40,281
Total Preferred Stocks			65,674
Total Investments 99.1%			4,121,929
Other Assets Less Liabilities 0.9%			37,490
Net Assets 100.0%		$	4,159,419

_____

See accompanying notes.

Seligman Investment Grade Fixed Income Portfolio

	Principal Amount		Value
US Government and Government Agency Securities 54.5%
US Government Securities 29.7%
US Treasury Bonds 5.375%, 2/15/2031	$	195,000	$	205,329
US Treasury Notes:
4.5%, 2/15/2009		455,000		451,197
4.5%, 2/15/2016		143,000		139,124
				795,650
Government Agency Securities 20.1%
Fannie Mae:
4.75%, 8/25/2008		75,000		74,432
5.6%, 2/8/2016		95,000		93,871
Freddie Mac:
5.05%, 12/8/2008		130,000		129,582
5.4%, 2/28/2011		45,000		44,873
5%, 8/15/2012		90,000		88,876
5.5%, 8/20/2019		80,000		78,186
6.25%, 7/15/2032		25,000		28,326
				538,146
Government Agency Mortgage-Backed Securities††ø 4.7%
Fannie Mae:
7%, 7/1/2008		6,612		6,710
7%, 2/1/2012		3,610		3,663
8.5%, 9/1/2015		4,314		4,528
6.5%, 5/1/2017		16,674		17,079
5.5%, 2/1/2018		33,700		33,531
7%, 1/1/2032		14,524		14,978
7%, 5/1/2032		36,948		38,095
Freddie Mac Gold:
6%, 11/1/2010		5,259		5,359
8%, 12/1/2023		3,171		3,376
				127,319
Total US Government and Government Agency Securities				1,461,115
Corporate Bonds 39.4%
Aerospace and Defense 0.6%
Honeywell International 5.4%, 3/15/2016		15,000		14,835
Auto Components 0.5%
Johnson Controls 5.5%, 1/15/2016		15,000		14,574
Capital Markets 1.9%
Ameriprise Financial 5.35%, 11/15/2010		30,000		29,727
Credit Suisse USA 5.25%, 3/2/2011		20,000		19,793
				49,520
Commercial Banks 0.7%
Wachovia Capital Trust 5.8%, 3/15/2042		20,000		19,670

Consumer Finance 2.2%
Capital One Bank 5%, 6/15/2009	30,000	29,666
Nissan Motor Acceptance 5.625%, 3/14/2011†	30,000	29,921
		59,587
Diversified Financial Services 1.3%
CIT Group 6%, 4/1/2036	10,000	9,656
Citigroup 5.875%, 2/22/2033	5,000	4,874
International Lease Finance 5%, 9/15/2012	20,000	19,257
		33,787
Electric Utilities 4.8%
Carolina Power & Light 5.25%, 12/15/2015	35,000	33,920
Commonwealth Edison 3.7%, 2/1/2008	15,000	14,554
Dayton Power & Light 5.125%, 10/1/2013	20,000	19,417
MidAmerican Energy Holdings 6.125%, 4/1/2036†	45,000	44,200
Progress Energy:
7.75%, 3/1/2031	10,000	11,659
7%, 10/30/2031	5,000	5,390
		129,140
Food and Staples Retailing 0.6%
Stater Brothers Holdings 8.125%, 6/15/2012	15,000	15,056
Food Products 1.1%
Dean Foods 6.625%, 5/15/2009	15,000	15,225
Smithfield Foods 7%, 8/1/2011	15,000	15,000
		30,225
Health Care Providers and Services 3.5%
Fresenius Medical Care Capital Trust 7.875%, 6/15/2011	15,000	15,975
Humana 6.3%, 8/1/2018	20,000	20,384
Omnicare 6.875%, 12/15/2015	15,000	15,038
UnitedHealth Group 3.3%, 1/30/2008	45,000	43,465
		94,862
Hotels, Restaurants and Leisure 2.0%
Royal Caribbean Cruises 6.875%, 12/1/2013	35,000	36,161
Starwood Hotels and Resorts Worldwide 7.875%, 5/1/2012	15,000	16,388
		52,549
Household Durables 0.9%
Centex 4.875%, 8/15/2008	25,000	24,615
Independent Power Producers and Energy Traders 1.5%
Black Hills 6.5%, 5/15/2013	40,000	40,042
Insurance 3.9%
Allstate 5.95%, 4/1/2036	15,000	14,661
Endurance Specialty Holdings 6.15%, 10/15/2015	35,000	34,744
Markel 6.8%, 2/15/2013	45,000	46,241
St. Paul Travelers 5.5%, 12/1/2015	10,000	9,800
		105,446
Machinery 0.6%
Westinghouse Air Brake Technologies 6.875%, 7/31/2013	15,000	15,262

Media 0.7%
Comcast:
5.9%, 3/15/2016	10,000		9,825
6.45%, 3/15/2037	10,000		9,653
			19,478
Metals and Mining 1.1%
BHP Billiton Finance 5%, 12/15/2010	30,000		29,524
Multi-Utilities 1.8%
Alabama Power 4.99%, 8/25/2009#	25,000		25,097
Consolidated Edison 5.85%, 3/15/2036	15,000		14,735
Southern California Edison 5%, 1/15/2016	10,000		9,547
			49,379
Office Electronics 1.1%
Xerox 6.4%, 3/15/2016	30,000		29,925
Oil, Gas and Consumable Fuels 4.7%
Amerada Hess 7.125%, 3/15/2033	30,000		32,836
Kinder Morgan Finance 5.7%, 1/5/2016	30,000		29,281
Massey Energy 6.875%, 12/15/2013	15,000		14,775
Peabody Energy 6.875%, 3/15/2013	15,000		15,300
Tesoro 6.625%, 11/1/2015†	35,000		34,825
			127,017
Pharmaceuticals 1.1%
Wyeth 5.5%, 3/15/2013	30,000		29,702
Real Estate 2.2%
Brandywine Operating Partners 6%, 4/1/2016	15,000		14,872
Health Care Properties 5.625%, 2/28/2013	15,000		14,801
Healthcare Realty Trust 5.125%, 4/1/2014	30,000		28,126
			57,799
Wireless Telecommunication Services 0.6%
Rogers Wireless 7.25%, 12/15/2012	15,000		15,881
Total Corporate Bonds			1,057,875
Asset-Backed Securities†† 2.1%
Electric Utilities 2.1%
Peco Energy Transition Trust 6.05%, 3/1/2009	56,389		56,708
Repurchase Agreement 3.6%
State Street Bank & Trust 4.06%, dated 3/31/2006, maturing 4/3/2006, in the amount of $97,033, collateralized by: $105,000 US Treasury Notes 4.625%, 3/31/2008 with a fair market value of $104,606	97,000		97,000
Total Investments 99.6%			2,672,698
Other Assets Less Liabilities 0.4%			10,833
Net Assets 100.0%		$	2,683,531

_____

See accompanying notes.

Seligman Large-Cap Value Portfolio

	Shares		Value
Common Stocks 100.4%
Aerospace and Defense 7.0%
Honeywell International		4,000	$	171,080
United Technologies		3,000		173,910
				344,990
Capital Markets 3.7%
Bank of New York		5,000		180,200
Chemicals 11.0%
Dow Chemical		3,600		146,160
E. I. du Pont de Nemours		3,100		130,851
Praxair		3,000		165,450
Rohm and Haas		2,000		97,740
				540,201
Commercial Banks 6.3%
Bank of America		3,500		159,390
U.S. Bancorp		5,000		152,500
				311,890
Communications Equipment 2.3%
Juniper Networks*		6,000		114,690
Computers and Peripherals 3.0%
International Business Machines		1,800		148,446
Diversified Financial Services 3.4%
JPMorgan Chase		4,000		166,560
Energy Traders 2.8%
AES*		8,000		136,480
Food and Staples Retailing 3.3%
Costco Wholesale		3,000		162,660
Health Care Equipment and Supplies 5.8%
Baxter International		3,500		135,835
Medtronic		3,000		152,250
				288,085
Health Care Providers and Services 2.5%
HCA		2,700		123,633
Industrial Conglomerates 2.8%
General Electric		4,000		139,120

Insurance 8.9%
Prudential Financial	2,000		151,620
St. Paul Travelers Companies	3,500		146,265
UnumProvident	7,000		143,360
			441,245
IT Services 1.5%
Amdocs*	2,000		72,120
Machinery 2.9%
Caterpillar	2,000		143,620
Multiline Retail 3.1%
J.C. Penney	2,500		151,025
Oil, Gas and Consumable Fuels 8.7%
Chevron	2,600		150,722
Valero Energy	2,500		149,450
Williams Companies*	6,100		130,479
			430,651
Pharmaceuticals 3.5%
Wyeth	3,600		174,672
Road and Rail 6.4%
CSX	2,500		149,500
Union Pacific	1,800		168,030
			317,530
Specialty Retail 2.7%
The Gap	7,000		130,760
Thrifts and Mortgage Finance 3.0%
Washington Mutual	3,500		149,170
Tobacco 2.9%
Altria Group	2,000		141,720
Wireless Telecommunication Services 2.9%
Sprint Nextel	5,600		144,704
Total Investments 100.4%			4,954,172
Other Assets Less Liabilities (0.4)%			(17,651	)
Net Assets 100.0%		$	4,936,521

_____

See accompanying notes.

Seligman Smaller-Cap Value Portfolio

	Shares		Value
Common Stocks 100.4%
Aerospace and Defense 2.9%
Cubic		300,000	$	7,182,000
Airlines 3.2%
Continental Airlines*		300,000		8,070,000
Beverages 1.6%
Constellation Brands (Class A)*		160,000		4,008,000
Biotechnology 4.1%
Keryx Biopharmaceuticals		209,700		4,000,028
PDL BioPharma*		190,000		6,231,050
				10,231,078
Chemicals 11.2%
Cabot		150,000		5,098,500
Chemtura		445,000		5,242,100
Hercules*		450,000		6,210,000
Lyondell Chemical		100,000		1,990,000
Minerals Technologies		95,000		5,548,950
NOVA Chemicals		135,000		3,847,500
				27,937,050
Commercial Services and Supplies 6.9%
Brink's		100,000		5,076,000
Korn/Ferry International		310,000		6,320,900
Waste Connections*		150,000		5,971,500
				17,368,400
Communications Equipment 1.7%
Plantronics		121,500		4,304,745
Computers and Peripherals 1.1%
Hypercom		300,000		2,790,000
Containers and Packaging 1.3%
Smurfit-Stone Container*		240,000		3,254,400
Diversified Consumer Services 3.8%
Sotheby's Holdings (Class A)*		330,000		9,583,200
Electrical Equipment 1.7%
EnerSys		306,100		4,224,180
Electronic Equipment and Instruments 2.7%
Trimble Navigation*		150,000		6,753,750

Energy Equipment and Services 5.6%
Hanover Compressor*	400,000	7,448,000
Universal Compression Holdings*	130,000	6,587,100
		14,035,100
Food Products 2.0%
Bunge	90,000	5,013,900
Health Care Providers and Services 5.0%
Apria Healthcare Group*	180,000	4,136,400
HealthSouth*	1,017,500	5,067,150
WellCare Health Plans*	73,900	3,358,016
		12,561,566
Hotels, Restaurants and Leisure 8.4%
Landry's Restaurants	110,000	3,886,300
Penn National Gaming*	110,000	4,637,600
Ruby Tuesday	250,000	8,020,000
WMS Industries*	150,000	4,515,000
		21,058,900
Household Durables 2.2%
Harman International Industries	50,000	5,556,500
Insurance 7.2%
W.R. Berkley	100,000	5,806,000
Hanover Insurance Group	130,000	6,814,600
Infinity Property & Casualty	127,000	5,299,710
		17,920,310
IT Services 1.7%
Carreker*	650,000	4,137,250
Machinery 5.4%
Mueller Industries	200,000	7,138,000
Terex*	80,000	6,339,200
		13,477,200
Media 2.0%
Cadmus Communications	269,450	4,894,559
Multiline Retail 1.7%
Fred's	320,000	4,248,000
Oil, Gas and Consumable Fuels 1.6%
Peabody Energy	80,000	4,032,800
Paper and Forest Products 0.7%
Bowater	60,000	1,774,800

Pharmaceuticals 2.2%
Andrx*	230,000		5,459,050
Road and Rail 2.0%
J.B. Hunt Transport Services	230,000		4,953,050
Semiconductors and Semiconductor Equipment 5.7%
ATI Technologies*	275,000		4,709,375
Credence Systems*	650,000		4,764,500
Skyworks Solutions	726,000		4,918,650
			14,392,525
Specialty Retail 4.8%
Blockbuster (Class A)	600,000		2,382,000
Finish Line (Class A)	290,000		4,766,150
Pacific Sunwear of California*	225,000		4,984,875
			12,133,025
Total Investments 100.4%			251,355,338
Other Assets Less Liabilities (0.4)%			(1,003,538	)
Net Assets 100.0%		$	250,351,800

__________________

  * Non-income producing security.

  † The security may be offered and sold only to “qualified institutional buyers” under Rule 144A of the Securities Act of 1933.

†† Investments in mortgage-backed and asset-backed securities are subject to principal paydowns. As a result of prepayments from refinancing or satisfaction of the underlying instruments, the average life may be less than the original maturity. This in turn may impact the ultimate yield realized from these investments.

 Ø Securities issued by these agencies are neither guaranteed nor insured by the US Government.

 # Floating rate security; the interest rate is reset periodically. The interest rate disclosed reflects the rate in effect at March 31, 2006.

(1) All or part of the security is held as collateral for options written. As of March 31, 2006, the values of securities held as collateral were $147,510 and $555,795, for Seligman Common Stock Portfolio and Seligman Communications and Information Portfolio, respectively.

ADR - American Depositary Receipts.

FDR - Fiduciary Depositary Receipts.

GDR - Global Depositary Receipts. 

See accompanying notes.

Seligman Portfolios, Inc.

Notes to Schedules of Investments (unaudited)

March 31, 2006

1. Organization - Seligman Portfolios, Inc. (the “Fund”) consists of 9 separate portfolios (the “Portfolios”): Seligman Capital Portfolio (“Capital Portfolio”), Seligman Cash Management Portfolio (“Cash Management Portfolio”), Seligman Common Stock Portfolio (“Common Stock Portfolio”), Seligman Communications and Information Portfolio (“Communications and Information Portfolio”), Seligman Global Technology Portfolio (“Global Technology Portfolio”), Seligman International Growth Portfolio (“International Growth Portfolio”), Seligman Investment Grade Fixed Income Portfolio (“Investment Grade Portfolio”), Seligman Large-Cap Value Portfolio (“Large-Cap Value Portfolio”), and Seligman Smaller-Cap Value Portfolio (“Smaller-Cap Value Portfolio”).

2. Security Valuation - Net asset value per share is calculated at the close of business of the New York Stock Exchange (“NYSE”), normally 4:00 p.m. Eastern time. Securities (including options) traded on an exchange are valued at the last sales price on the primary exchange or market on which they are traded. Securities not listed on an exchange or security market, or securities for which there is no last sales price, are valued at the mean of the most recent bid and asked prices or 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 Fund’s investment adviser, based on quotations provided by primary market makers in such securities. Notwithstanding these valuation methods, the Global Technology Portfolio and International Growth Portfolio may adjust the value of securities as described below in order to reflect the fair value of such securities.

Many securities markets and exchanges outside the US close prior to the close of the NYSE; therefore, the closing prices for securities in such markets or on such exchanges may not fully reflect events that occur after the local market close but before the close of the NYSE. The Board of Directors (the “Board”) of the Fund approved “fair value” procedures under which a third-party service on a regular basis recommends adjustments to the local closing prices of certain foreign equity securities. The adjustments are based on a statistical analysis of the historical relationship between the price movements of a security and independent variables such as US market movements, sector movements, movements in the ADR of a security (if any), and movements in country or regional exchange-traded funds or futures contracts. The factors used vary with each security, depending on which factors have been most important historically.

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. This can occur in 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.

The books and records of each Portfolio are maintained in US dollars. The market value of investment securities, other assets, and liabilities denominated in foreign currencies are translated into US dollars at the daily rate of exchange as reported by a pricing service.

Short-term holdings that mature 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. Investments held by the Cash Management Portfolio are generally valued using the amortized cost method that approximates fair value.

3. At March 31, 2006, the cost of investments for federal income tax purposes, and the tax basis gross and net unrealized appreciation and depreciation of portfolio securities, including the effects of purchased options and foreign currency translations, were as follows:

Portfolio	Tax Basis Cost			Total Unrealized Appreciation			Total Unrealized Depreciation			Net Unrealized Appreciation (Depreciation)
Capital Portfolio	$	11,750,202		$	1,619,164		$	169,106		$	1,450,058
Cash Management Portfolio		14,343,893			-			-			-
Common Stock Portfolio		7,777,514			691,073	*		428,840	*		262,233	*
Communications and Information Portfolio		59,767,819			4,876,521			3,038,047	*		1,838,474	*
Global Technology Portfolio		8,573,627			775,636			247,526			528,110
International Growth Portfolio		3,488,753			652,222			19,045			633,177
Investment Grade Portfolio		2,703,005			969			31,276			(30,307	)
Large-Cap Value Portfolio		3,882,088			1,168,110			96,026			1,072,084
Smaller-Cap Value Portfolio		188,581,034			78,539,991			15,765,687			62,774,304
		____________	____		____________	____		____________	____		____________	____

*  Includes the effect of options written.

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.

SELIGMAN PORTFOLIOS, INC.
By:	/S/ BRIAN T. ZINO
	Brian T. Zino
	President and Chief Executive Officer
Date:	May 25, 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:	May 25, 2006
By:	/S/ LAWRENCE P. VOGEL
	Lawrence P. Vogel
	Vice President, Treasurer and Chief Financial Officer
Date:	May 25, 2006

SELIGMAN PORTFOLIOS, INC.

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.