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March 1, 2013, as amended August 5, 2013 and September 6, 2013


Summary Prospectus    LOGO
Calamos Convertible Fund   
NASDAQ Symbol:  CCVIX – Class A    CALBX – Class B    CCVCX – Class C   


Before you invest, you may want to review the Fund’s prospectus and statement of additional information, which contain more information about the Fund and its risks. You can find the Fund’s prospectus, statement of additional information and other information about the Fund online at http://fundinvestor.calamos.com/FundLit. You can also get this information at no cost by calling 800.582.6959 or by sending an e-mail request to prospectus@calamos.com. The current prospectus and statement of additional information, both dated March 1, 2013, as amended August 5, 2013 and September 6, 2013 (and as each may be amended or supplemented), and the financial statements included in the Fund’s most recent report to shareholders, dated October 31,2012, are incorporated by reference into this summary prospectus.


Investment Objective

Calamos Convertible Fund’s primary objective is current income, with growth as its secondary objective.

Fees and Expenses of the Fund

The following table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Calamos Funds. More information about these and other discounts is available from your financial professional and under “Fund Facts — What classes of shares do the Funds offer?” on page 80 of the Fund’s prospectus and “Share Classes and Pricing of Shares” on page 56 of the Fund’s statement of additional information.



Shareholder Fees (fees paid directly from your investment):

        CLASS A        CLASS B        CLASS C  

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

       4.75        None           None   

Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the redemption price or offering price)

       None           5.00        1.00

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment):


        CLASS A        CLASS B        CLASS C  

Management Fees

       0.69        0.69        0.69

Distribution and/or Service Fees (12b-1)

       0.25        1.00        1.00

Other Expenses

       0.17        0.17        0.17

Total Annual Operating Expenses

       1.11        1.86        1.86


This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then either redeem or do not redeem your shares at the end of the reflected time periods. The example also assumes that your investment has a 5% return each year, that all dividends and capital gain distributions are reinvested, that you pay a maximum initial or contingent deferred sales charge and that the Fund’s operating expenses remain the same (except for the ten-year amounts for Class B shares, which reflect the conversion of Class B shares to Class A shares in years nine and ten). Although your actual performance and costs may be higher or lower, based on these assumptions, your costs would be:



        A        B        C        A        B        C  

1 Year

       583           689           289           583           189           189   

3 Years

       811           885           585           811           585           585   

5 Years

       1,058           1,206           1,006           1,058           1,006           1,006   

10 Years

       1,763           1,985           2,181           1,763           1,985           2,181   

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 56.6% of the average value of its portfolio.


CVPRO 09/13

Calamos Convertible Fund


Principal Investment Strategies

The Fund invests mainly in a diversified portfolio of convertible securities issued by both U.S. and foreign companies without regard to market capitalization. These convertible securities may be either debt securities or preferred stocks that can be exchanged for common stock. Under normal circumstances, the Fund invests at least 80% of its net assets (plus any borrowings) in convertible securities. The average term to maturity of the convertible securities purchased by the Fund will typically range from two to ten years.

The Fund may invest up to 25% of its net assets in foreign securities, but generally will invest approximately 5% to 15% of net assets in foreign securities.

In analyzing the appreciation potential of the underlying common stock and the default risk of the convertible security, the Fund generally considers the issuer’s financial soundness, ability to make interest and dividend payments, earnings and cash flow forecast and quality of management. The Fund’s investment adviser seeks to lower the risks of investing in stocks by using a “top-down approach” of diversification by company, industry, sector, country and currency and focusing on macro-level investment themes. Consistent with the Fund’s investment objective and principal investment strategies the Fund’s investment adviser views the strategies as low volatility equity strategies and attempts to achieve equity-like returns with lower than equity market risk by managing a portfolio that it believes will exhibit less volatility over full market cycles.

Principal Risks

An investment in the Fund is subject to risks, and you could lose money on your investment in the Fund. There can be no assurance that the Fund will achieve its investment objectives. The risks associated with an investment in the Fund can increase during times of significant market volatility. Your investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The principal risks of investing in the Fund include:



Convertible Securities Risk — The value of a convertible security is influenced by changes in interest rates, with investment value declining as interest rates increase and increasing as interest rates decline. The credit standing of the issuer and other factors also may have an effect on the convertible security’s investment value.



Synthetic Convertible Instruments Risk — The value of a synthetic convertible instrument will respond differently to market fluctuations than a convertible security because a synthetic convertible instrument is composed of two or more separate securities, each with its own market value. In addition, if the value of the underlying common stock or the level of the index involved in the convertible component falls below the exercise price of the warrant or option, the warrant or option may lose all value.



Foreign Securities Risk — Risks associated with investing in foreign securities include fluctuations in the exchange rates of foreign currencies that may affect the U.S. dollar value of a security, the possibility of substantial price volatility as a result of political and economic instability in the foreign country, less public information about issuers of securities, different securities regulation, different accounting, auditing and financial reporting standards and less liquidity than in U.S. markets.



Equity Securities Risk — The securities markets are volatile, and the market prices of the Fund’s securities may decline generally. The price of equity securities fluctuates based on changes in a company’s financial condition and overall market and economic conditions. If the market prices of the securities owned by the Fund fall, the value of your investment in the Fund will decline.



Interest Rate Risk — The value of fixed-income securities generally decreases in periods when interest rates are rising. In addition, interest rate changes typically have a greater effect on prices of longer-term fixed-income securities than shorter-term fixed-income securities.



Credit Risk — An issuer of a fixed-income security could be downgraded or default. If the Fund holds securities that have been downgraded, or that default on payment, the Fund’s performance could be negatively affected.



High Yield Risk — High yield securities and unrated securities of similar credit quality (commonly known as “junk bonds”) are subject to greater levels of credit and liquidity risks. High yield securities are considered primarily speculative with respect to the issuer’s continuing ability to make principal and interest payments.



Portfolio Selection Risk — The value of your investment may decrease if the investment adviser’s judgment about the attractiveness, value or market trends affecting a particular security, issuer, industry or sector or about market movements is incorrect.



Liquidity Risk — Liquidity risk exists when particular investments are difficult to purchase or sell. The Fund’s investments in illiquid securities may reduce the returns of the Fund because it may be unable to sell the illiquid securities at an advantageous time or price.



Calamos Convertible Fund



The following bar chart and table indicate the risks of investing in the Fund by showing changes in the Fund’s performance from calendar year to calendar year and how the Fund’s average annual total returns compare with those of a broad measure of market performance. All returns include the reinvestment of dividends and distributions. As always, please note that the Fund’s past performance (before and after taxes) cannot predict how it will perform in the future. Updated performance information is available at no cost by visiting www.calamos.com or by calling 800.582.6959.







Best Quarter:   14.06% (9.30.09)      Worst Quarter:   -12.20% (12.31.08)

Average Annual Total Returns as of 12.31.12

The following table shows how the Fund’s average annual performance (before and after taxes) for the one-, five- and ten-year periods ended December 31, 2012 and since the Fund’s inception compared with broad measures of market performance. “Since Inception” returns shown for each index are returns since the inception of the Fund’s Class A shares, or since the nearest subsequent month end when comparative index data is available only for full monthly periods. The after-tax returns show the impact of assumed federal income taxes on an investment in the Fund. “Return After Taxes on Distributions” shows the effect of taxable distributions, but assumes that you still hold the Fund shares at the end of the period and so do not have any taxable gain or loss on your investment. “Return After Taxes on Distributions and Sale of Fund Shares” shows the effect of taxable distributions and any taxable gain or loss that would be realized if the Fund shares were purchased at the beginning and sold at the end of the specified period.

The after-tax returns are shown only for Class A shares, are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. After-tax returns for classes other than Class A will vary from returns shown for Class A. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of Fund shares.






Class A


Load Adjusted Return Before Taxes

              0.55      1.22      5.82      9.01

Load Adjusted Return After Taxes on Distributions

              -0.83      0.08      4.25      6.89

Load Adjusted Return After Taxes on Distributions and Sale of Fund Shares

              2.21      0.74      4.44      6.84

Class B


Load Adjusted Return Before Taxes

              -0.12      1.12      5.70      4.78

Class C


Load Adjusted Return Before Taxes

              3.74      1.44      5.54      7.40

BofA Merrill Lynch All US Convertibles Index

              14.96      4.06      7.31      N/A   

S&P 500 Index

              16.00      1.66      7.10      10.14

Value Line Convertible Index

              15.85      7.43      9.08      8.41

Since inception return for the BofA Merrill Lynch All US Convertible Index is not available as the inception date of the Index is 1/1/1988. The S&P 500 Index is generally considered to be representative of the U.S. stock market. The Value Line Convertible Index measures convertible bond asset class performance. The S&P 500 Index and the Value Line Convertible Index are provided to show how the Fund’s performance compares with the returns of indices of securities similar to those in which the Fund invests.



Calamos Convertible Fund


Investment Adviser

Calamos Advisors LLC




John P. Calamos, Sr. (President, Chairman)

   since Fund’s inception    Chief Executive Officer, Global Co-CIO

Gary D. Black (Vice President)

   since August 31, 2012    EVP, Global Co-CIO

Nick Niziolek

   since March 1, 2013    SVP, Co-Portfolio Manager, Co-Head of  Research

Jeff Scudieri

   10 years    SVP, Co-Portfolio Manager, Co-Head of  Research

Jon Vacko

   10 years    SVP, Co-Portfolio Manager, Co-Head of  Research

John Hillenbrand

   10 years    SVP, Co-Portfolio Manager

Steve Klouda

   10 years    SVP, Co-Portfolio Manager

Eli Pars

   since June 7, 2013    SVP, Co-Portfolio Manager

Dennis Cogan

   since March 1, 2013    VP, Co-Portfolio Manager

Joe Wysocki

   5 years    VP, Co-Portfolio Manager

Buying and Redeeming Fund Shares

Minimum Initial Investment

Classes A and C: $2,500/$500 for IRA

Minimum Additional Investment

Classes A and C: $50

To Place Orders

Please contact your broker or other intermediary, or place your order directly:


U.S. Bancorp Fund Services, LLC

P.O. Box 701

Milwaukee, WI 53201

Phone: 800.582.6959

Effective on July 31, 2009, the Funds no longer accept purchases of Class B shares from new or existing investors, except from existing investors through the reinvestment of dividends and/or capital gain distributions in Class B shares of the same Fund or by exchange of existing Class B shares held in another Fund.

Transaction Policies

The Funds’ shares are redeemable. In general, investors may purchase, redeem, or exchange Fund shares on any day the New York Stock Exchange is open by written request (to the address noted above), by wire transfer, by telephone (at the number noted above), or through a financial intermediary. Orders to buy and redeem shares are processed at the next net asset value (share price or “NAV”) to be calculated only on days when the New York Stock Exchange is open for regular trading.

Tax Information

The Funds’ distributions may be taxable as ordinary income or capital gains, except when your investment is in an IRA, 401(k) or other tax-advantaged investment plan.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase shares of the Fund through a broker-dealer or other financial intermediary (such as a bank), the Fund and its related companies may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the Fund over another investment. Ask your salesperson or visit your financial intermediary’s website for more information.

Click here to view the Fund’s statutory prospectus or statement of additional information.



2020 Calamos Court

Naperville, IL 60563-2787