Thursday's Buybacks: Cardinal Health for $1 Billion More

Here's a list of companies that have recently announced buybacks. The following are stock buybacks announced over the past 30 days.

(Interested in learning more about buybacks and why they're important? Check out this article.)

COMPANY	SYMBOL	AMOUNT	NOTES
11/30/2006
Cardinal Health Inc.	CAH	$1 bln	adds to prior plan
Dean Foods Co.	DF	$300 mln	adds to prior plan
Dollar General	DG	$500 mln
11/29/2006
On Semiconductor Corp.	ONNN	50 mln shares
11/28/2006
Principal Financial Group	PFG	$250 mln	prior plan complete
11/27/2006
Saia Inc.	SAIA	$25 mln	prior plan complete
11/22/2006
LCA-Vision Inc.	LCAV	$50 mln	prior plan complete
United Bancorp Inc.	UBCP	$2 mln	up to 2 years
11/21/2006
Dollar Tree Stores	DLTR	$500 mln	adds to prior plan
Odyssey HealthCare Inc.	ODSY	$10 mln	over 12 months
Spark Networks	LOV	2 mln share	over 18 months
Washington Group International	WGII	$100 mln	adds to prior plan
11/20/2006
American Woodmark Corp.	AMWD	$50 mln	adds to prior plan
Aon Corp.	AOC	$1 bln	adds to prior plan
Papa John's International	PZZA	$50 mln	adds to prior plan
Steel Dynamics Inc.	STLD	2.5 mln shares	adds to prior plan
TD Ameritrade Holding Corp.	AMTD	20 mln shares	adds to prior plan
Timberland Bancorp	TSBK	5% of outstanding	186,266 shares
Varian Medical Systems	VAR	4.5 mln shares	adds to prior plan
Xerox Corp.	XRX	$500 mln	adds to prior plan
11/17/2006
Charter Financial Corp.	CHFN	1 mln shares	tender offer
Commerce Group Inc.	CGI	3.5 mln shares	adds to prior plan
Frontier Oil Corp.	FTO	$100 mln	prior plan complete
Tri-Continental Corp.	TY	5% of outstanding	Jan-Dec 2007
United Financial Bancorp	UBNK	858,000 shares	5% of outstanding
11/16/2006
Arbitron Inc.	ARB	$100 mln	prior plan complete
Barrett Business Services	BBSI	500,000 shares
Kronos Inc.	KRON	1.25 mln shares	adds to prior plan
OMI Corp.	OMM	$140 mln	adds to prior plan
Seacor Holdings Inc.	CKH	$75 mln	including prior plan
Southwest Airlines	LUV	$400 mln	prior plan complete
11/15/2006
Cisco	CSCO	$7 bln	adds to prior plan
Comerica Inc.	CMA	10 mln shares	adds to prior plan
DeVry Inc.	DV	$35 mln	over 2 years
Great Southern Bancorp Inc.	GSBC	700,000 shares	replaces prior plan
InPhonic	INPC	$30 mln
Marchex Inc.	MCHX	3 mln shares
Network Appliance Inc.	NTAP	$800 mln	adds to prior plan
Pall Corp.	PLL	$250 mln	adds to prior plan
11/14/2006
Applebee's International Inc.	APPB	$150 mln	adds to prior plan
Benjamin Franklin Bancorp	BFBC	412,490 shares	5% of outstanding
Encore Wire Corp.	WIRE	1 mln shares	replaces prior plan
Perceptron Inc.	PRCP	$2 mln	adds to prior plan
PrimeEnergy Corp.	PNRG	300,000 shares	adds to prior plan
Prudential Financial	PRU	$3 bln	through 2007
11/13/2006
Black Box Corp.	BBOX	1 mln shares	adds to prior plan
China Medical Technologies	CMED	$30 mln
Lawson Software	LWSN	$100 mln	186.4 mln shares outstanding
Pool Corp.	POOL	$50 mln	adds to prior plan
Sonic	SONC	$75 mln	adds to prior plan
Vignette	VIGN	$75 mln	over one year
11/10/2006
Air T Inc.	AIRT	$2 mln
Assurant Inc.	AIZ	$600 mln	upon completion of prior plan
CorVel Corp.	CRVL	200,000 shares	adds to prior plan
11/09/2006
Ambassadors Group Inc.	EPAX	$11 mln	adds to prior plan
Amcol International Corp.	ACO	$15 mln	over 2 years
First Federal Bancshares of Arkansas	FFBH	5% of outstanding	prior plan complete
Hydril	HYDL	$150 mln
Radian Group Inc.	RDN	2 mln shares	adds to prior plan
SureWest Communications	SURW	1 mln shares	adds to prior plan
11/08/2006
Frozen Food Express Industries	FFEX	1 mln shares	adds to prior plan
Orbotech Ltd.	ORBK	1.7 mln shares
PetMed Express Inc.	PETS	$20 mln	24.2 mln shares outstanding
11/07/2006
Eagle Materials Inc.	EXP	5.16 mln shares	adds to prior plan
Excel Technology Inc.	XLTC	2 mln shares	16.6% of outstanding
PDI Inc.	PDII	1 mln shares	prior plan terminated
Schnitzer Steel Industries	SCHN	4.7 mln shares	15% of outstanding
Teva Pharmaceutical Industries	TEVA	$600 mln
Universal Compression Holdings	UCO	$200 mln	Until Nov 2008
11/06/2006
CheckFree	CKFR	$100 mln	through Aug 2007
Liberty Media	LCAPA	$1 bln	adds to prior plan
Nashua	NSHA	500,000 shares	6.3 mln shares outstanding
PerkinElmer Inc.	PKI	10 mln shares	over 4 years
TXU	TXU	20 mln shares	adds to prior plan
11/03/2006
C&F Financial Corp.	CFFI	150,000 shares	prior plan complete
Medco Haelth Solutions	MHS	$1 bln	adds to prior plan
Span-America Medical Systems	SPAN	100,000 shares
W.R. Berkley	BER	20 mln shares	adds to prior plan
11/02/2006
Canterbury Park Holding Corp.	ECP	100,000 shares	4 mln shares outstanding
CBS Corp.	CBS	$1.5 bln
Safeco	SAFC	15 mln shares	including prior plan
11/01/2006
Citrix Systems Inc.	CTXS	$300 mln	adds to prior plan
Fair Isaac Corp.	FIC	$500 mln	replaces prior plan
Manpower Inc.	MAN	5 mln shares
Robert Half International	RHI	10 mln shares	adds to prior plan
Unitrin Inc.	UTR	6 mln shares	adds to prior plan
Valhi Inc.	VHI	5 mln shares	adds to prior plan
10/31/2006
ASV Inc.	ASVI	$50 mln	over 3 years
Captaris Inc.	CAPA	$8 mln	adds to prior plan
IAC Interactive Corp.	IACI	60 mln shares	adds to prior plan
International Business Machines	IBM	$4 bln	adds to prior plan
United States Steel Corporation	X	8 mln shares	replaces prior plan
10/30/2006
Arctic Cat Inc.	ACAT	$20 mln	adds to prior plan
CyberKey Solutions Inc.	CKYS	$1 mln	over 6 months
Holly Corp.	HOC	$100 mln	adds to prior plan
Republic Services Inc.	RSG	$250 mln	adds to prior plan
Source: The Online Investor