Calamos Tax Center

2008 Open-End Mutual Fund Income Distributions
Choose a Share Class

Domestic Equity
Fund A Shares Ticker Symbol (Inception Date)	Record Date	Ex-date	Payable Date	Income Dividends
Growth Fund CVGRX (9/4/90)	3/19/2008	3/20/2008	3/20/2008	-
Growth Fund CVGRX (9/4/90)	6/18/2008	6/19/2008	6/19/2008	-
	9/17/2008	9/18/2008	9/18/2008	-
	12/17/2008	12/18/2008	12/18/2008	-
			Total	-
Growth and Income Fund CVTRX (9/22/88)	3/19/2008	3/20/2008	3/20/2008	-
Growth and Income Fund CVTRX (9/22/88)	6/18/2008	6/19/2008	6/19/2008	0.158630
	9/17/2008	9/18/2008	9/18/2008	0.171860
	12/17/2008	12/18/2008	12/18/2008	0.092630
			Total	0.423120
Value Fund CVAAX (1/2/02)	3/19/2008	3/20/2008	3/20/2008	-
Value Fund CVAAX (1/2/02)	6/18/2008	6/19/2008	6/19/2008	-
	9/17/2008	9/18/2008	9/18/2008	-
	12/17/2008	12/18/2008	12/18/2008	0.006020
			Total	0.006020
Blue Chip Fund CBCAX (12/1/03)	3/19/2008	3/20/2008	3/20/2008	-
Blue Chip Fund CBCAX (12/1/03)	6/18/2008	6/19/2008	6/19/2008	-
	9/17/2008	9/18/2008	9/18/2008	-
	12/17/2008	12/18/2008	12/18/2008	0.037810
			Total	0.037810
Multi-Fund Blend CMQAX (6/28/06)	3/20/2008	3/21/2008	3/21/2008	-
Multi-Fund Blend CMQAX (6/28/06)	6/19/2008	6/20/2008	6/20/2008	-
	9/18/2008	9/19/2008	9/19/2008	-
	12/18/2008	12/19/2008	12/19/2008	-
			Total	-
130/30 Equity Fund CELSX (6/20/08)	9/17/2008	9/18/2008	9/18/2008	-
130/30 Equity Fund CELSX (6/20/08)	12/17/2008	12/18/2008	12/18/2008	0.018030
			Total	0.018030
Global/International
Global Growth and Income Fund CVLOX (9/9/96)	3/19/2008	3/20/2008	3/20/2008	-
Global Growth and Income Fund CVLOX (9/9/96)	6/18/2008	6/19/2008	6/19/2008	-
	9/17/2008	9/18/2008	9/18/2008	-
	12/17/2008	12/18/2008	12/18/2008	0.227970
			Total	0.227970
International Growth Fund CIGRX (3/16/05)	3/19/2008	3/20/2008	3/20/2008	-
International Growth Fund CIGRX (3/16/05)	6/18/2008	6/19/2008	6/19/2008	-
	9/17/2008	9/18/2008	9/18/2008	-
	12/17/2008	12/18/2008	12/18/2008	-
			Total	-
Global Equity Fund CAGEX (3/1/07)	3/19/2008	3/20/2008	3/20/2008	-
Global Equity Fund CAGEX (3/1/07)	6/18/2008	6/19/2008	6/19/2008	-
	9/17/2008	9/18/2008	9/18/2008	-
	12/17/2008	12/18/2008	12/18/2008	0.342310
			Total	0.342310
Evolving World Growth Fund CNWGX (8/15/08)	9/17/2008	9/18/2008	9/18/2008	-
Evolving World Growth Fund CNWGX (8/15/08)	12/17/2008	12/18/2008	12/18/2008	0.062080
			Total	0.062080
Convertible
Convertible Fund CCVIX (6/21/85)	3/19/2008	3/20/2008	3/20/2008	-
Convertible Fund CCVIX (6/21/85)	6/18/2008	6/19/2008	6/19/2008	-
	9/17/2008	9/18/2008	9/18/2008	-
	12/17/2008	12/18/2008	12/18/2008	0.108050
			Total	0.108050
Alternative
Market Neutral Income Fund CVSIX (9/4/90)	3/19/2008	3/20/2008	3/20/2008	0.090030
Market Neutral Income Fund CVSIX (9/4/90)	6/18/2008	6/19/2008	6/19/2008	0.089710
	9/17/2008	9/18/2008	9/18/2008	0.089360
	12/17/2008	12/18/2008	12/18/2008	0.348860
			Total	0.617960
Fixed Income
High Yield Fund CHYDX (8/2/99)	3/19/2008	3/20/2008	3/20/2008	0.078760
High Yield Fund CHYDX (8/2/99)	6/18/2008	6/19/2008	6/19/2008	0.148200
	7/14/2008	7/15/2008	7/15/2008	-
	9/17/2008	9/18/2008	9/18/2008	0.126760
	12/17/2008	12/18/2008	12/18/2008	0.119900
			Total	0.473620
Total Return Bond Fund CTRAX (6/27/07)	Daily	Daily	1/31/2008	0.031046
Total Return Bond Fund CTRAX (6/27/07)	Daily	Daily	2/29/2008	0.025266
	Daily	Daily	3/31/2008	0.027728
	Daily	Daily	4/30/2008	0.024027
	Daily	Daily	5/30/2008	0.025622
	Daily	Daily	6/30/2008	0.026107
	Daily	Daily	7/31/2008	0.025977
	Daily	Daily	8/29/2008	0.026859
	Daily	Daily	9/30/2008	0.027834
	Daily	Daily	10/31/2008	0.029864
	Daily	Daily	11/28/2008	0.034314
	Daily	Daily	12/31/2008	0.093843
			Total	0.322191
Government Money Market Fund CVAXX (3/3/08)	Daily	Daily	3/31/2008	0.002090
Government Money Market Fund CVAXX (3/3/08)	Daily	Daily	4/30/2008	0.001815
	Daily	Daily	5/30/2008	0.001624
	Daily	Daily	6/30/2008	0.001478
	Daily	Daily	7/31/2008	0.001558
	Daily	Daily	8/29/2008	0.001574
	Daily	Daily	9/30/2008	0.001634
	Daily	Daily	10/31/2008	0.001675
	10/30/2008	10/31/2008	10/31/2008	0.000003
	Daily	Daily	11/28/2008	0.001673
	Daily	Daily	12/31/2008	0.000813
			Total	0.015937

For more information about the Funds such as sector weightings, top holdings, credit ratings and distribution rates, please contact Client Services at 800-582-6959.

Each Fund is a series of Calamos Investment Trust. The investment adviser to the Funds is Calamos Advisors LLC. The Calamos Family of Funds offers a range of investment strategies for individual investors with diverse investment objectives and needs. For more information on the Funds, please call 800-582-6959.

Before investing carefully consider the fund's investment objectives, risks, charges and expenses. Please see the prospectus containing this and other information or call 800-582-6959. Read it carefully.

An investment in the Government Money Market Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, this share price is not guaranteed and you could lose money by investing in the Fund.

Calamos Financial Services LLC, Distributor

5122 1208Y R