Convertible Fund (CCVIX)

Important Risk Information

An investment in the Fund(s) is subject to risks, and you could lose money on your investment in the Fund(s). There can be no assurance that the Fund(s) will achieve its investment objective. Your investment in the Fund(s) is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency. The risks associated with an investment in the Fund(s) can increase during times of significant market volatility. The Fund(s) also has specific principal risks, which are described below. More detailed information regarding these risks can be found in the Fund’s prospectus.

The principal risks of investing in the Calamos Convertible Fund include: convertible securities risk consisting of the potential for a decline in value during periods of rising interest rates and the risk of the borrower to miss payments, synthetic convertible instruments risk consisting of fluctuations inconsistent with a convertible security and the risk of components expiring worthless, foreign securities risk, equity securities risk, interest rate risk, credit risk, high yield risk, portfolio selection risk and liquidity risk.

As a result of political or economic instability in foreign countries, there can be special risks associated with investing in foreign securities, including fluctuations in currency exchange rates, increased price volatility and difficulty obtaining information. In addition, emerging markets may present additional risk due to potential for greater economic and political instability in less developed countries.

10k Performance is for the Fund’s Class A shares at net asset value and does not include the Fund’s maximum front-end sales charge of 2.25%—(Prior to 2/28/17, the Fund had a maximum front-end sales charge of 4.75%)-had it been included, the Fund’s return would have been lower. Index data shown is from 6/30/85, since comparative index data is available only for full monthly periods. Source: State Street Corporation, Lipper, Inc. and Mellon Analytical Solutions, LLC.

ICE BofAML All U.S. Convertibles Index-Comprises of approximately 700 issues of only convertible bonds and preferreds of all qualities. Source ICE Data Indices, LLC, used with permission. ICE permits use of the ICE BofAML indices and related data on an `as is' basis, makes no warranties regarding same, does not guarantee the suitability, quality, accuracy, timeliness, and/or completeness of the ICE BofAML Indices or data included in, related to, or derived therefrom, assumes no liability in connection with the use of the foregoing and does not sponsor, endorse or recommend Calamos Advisors LLC or any of its products or services.

S&P 500 Index-Is generally considered representative of the U.S. stock market.

Performance data quoted represents past performance, which is no guarantee of future results. Current performance may be lower or higher than the performance quoted. The principal value and investment return of an investment will fluctuate so that your shares, when redeemed, may be worth more or less than their original cost.

Unmanaged index returns assume reinvestment of any and all distributions and, unlike fund returns, do not reflect fees, expenses or sales charges. Investors cannot invest in an index.

Average annual total return measures net investment income and capital gain or loss from portfolio investments as an annualized average. All performance shown assumes reinvestment of dividends and capital gains distributions. Performance shown reflects an expense reimbursement that improved results. Load-adjusted returns are adjusted for the maximum front-end sales load of 2.25%* for Class A shares in the following funds: Convertible Fund, Global Convertible Fund, Market Neutral Income Fund, High Income Opportunities Fund, and Total Return Bond Fund. The maximum front-end sales load for Class A shares of all other funds is 4.75%. There is a 1% contingent deferred sales charge for C shares on certain redemptions within the first year of purchase. Class C shares have been adjusted for the contingent deferred sales charge (CDSC). There are no contingent deferred sales charges or distribution or service fees with respect to Class I shares. The minimum initial investment required to purchase each Fund's Class I shares is $1 million. Class I shares are offered primarily for direct investment by investors through certain tax-exempt retirement plans (including 401(k) plans, 457 plans, employer-sponsored 403(b) plans, profit sharing and money purchase pension plans, defined benefit plans and non-qualified deferred compensation plans) and by institutional clients, provided such plans or clients have assets of at least $1 million. Class I shares may also be offered to certain other entities or programs, including, but not limited to, investment companies, under certain circumstances. *Prior to 2/28/17, the Convertible Fund, Global Convertible Fund, Market Neutral Income Fund, and High Income Opportunities fund had a maximum front-end sales load of 4.75%, and the Total Return Bond Fund had a maximum front-end sales load of 3.75%.

The funds' gross expense ratios as of the prospectus dated 3/1/18 are as follows: Growth A 1.40%, C 2.15% and I 1.15%; Growth and Income A 1.12%, C 1.87% and I 0.87%; Opportunistic Value A 1.67%, C 2.42% and I 1.42%; Dividend Growth A 1.87%, C 2.73% and I 1.80%; Global Growth and Income A 1.54%, C 2.29% and I 1.29%; International Growth A 1.46%, C 2.21% and I 1.21%; Global Equity A 1.53%, C 2.27% and I 1.28%; Evolving World Growth A 1.67%, C 2.41% and I 1.41%; Emerging Market Equity A 2.70%, C 3.45% and I 2.45%; Convertible A 1.18%, C 1.93% and I 0.93%; Global Convertible A 1.46%, C 2.20% and I 1.19%; Market Neutral Income A 1.28%, C 2.03% and I 1.02%; Phineus Long/Short A 2.80%, C 3.55% and I 2.54%; Hedged Equity Income A 2.15%, C 3.04% and I 2.07%; High Income Opportunities A 1.33%, C 2.08% and I 1.08%; and Total Return Bond A 1.08%, C 1.83% and I 0.84%.  

NOT FDIC INSURED | NO BANK GUARANTEE | MAY LOSE VALUE

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 before investing.

Top 10 Holdings and Sector Weightings are calculated as a percentage of Net Assets. The tables exclude cash or cash equivalents, any government / sovereign bonds or broad based index hedging securities the portfolio may hold.

Holdings and weightings are subject to change daily. Holdings are provided for informational purposes only and should not be deemed as a recommendation to buy or sell the securities mentioned.

Important Fund Information

Bond Credit Quality allocation reflects the higher of the ratings of Standards & Poor’s Corporation; Moody’s Investors Service, Inc. Ratings are relative, subjective and not absolute standards of quality, represent the opinions of the independent, Nationally Recognized Statistical Rating Organizations (NRSRO), and are adjusted to the Standards & Poor’s scale shown. Ratings are measured using a scale that typically ranges from AAA (highest) to D (lowest). The security’s credit rating does not eliminate risk. The table excludes equity securities, cash and cash equivalents. For more information about securities ratings, please see the Fund’s Statement of Additional Information at calamos.com. Additional information on ratings methodologies are available by visiting the NRSRO websites: www.standardandpoors.com and www.moodys.com.

Portfolios are managed according to their respective strategies which may differ significantly in terms of security holdings, industry weightings, and asset allocation from those of the benchmark(s). Portfolio performance, characteristics and volatility may differ from the benchmark(s) shown.

Current (SEC) Yield-Reflects the dividends and interest earned by the Fund during the 30-day period ended as of the date stated above after deducting the Fund’s expenses for that same period. Lipper Convertible Securities Funds—Represents funds that invest primarily in convertible bonds and/or convertible preferred stock.

An investment in the Fund(s) is subject to risks, and you could lose money on your investment in the Fund(s). There can be no assurance that the Fund(s) will achieve its investment objective. Your investment in the Fund(s) is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency. The risks associated with an investment in the Fund(s) can increase during times of significant market volatility. The Fund(s) also has specific principal risks, which are described below. More detailed information regarding these risks can be found in the Fund’s prospectus.

The principal risks of investing in the Calamos Convertible Fund include: convertible securities risk, synthetic convertible instruments risk, foreign securities risk, equity securities risk, interest rate risk, credit risk, high yield risk and portfolio selection risk. As a result of political or economic instability in foreign countries, there can be special risks associated with investing in foreign securities, including fluctuations in currency exchange rates, increased price volatility and difficulty obtaining information. In addition, emerging markets may present additional risk due to potential for greater economic and political instability in less developed countries.

Portfolios are managed according to their respective strategies which may differ significantly in terms of security holdings, industry weightings, and asset allocation from those of the benchmark(s). Portfolio performance, characteristics and volatility may differ from the benchmark(s) shown.

Average annual total return measures net investment income and capital gain or loss from portfolio investments as an annualized average. All performance shown assumes reinvestment of dividends and capital gains distributions. Performance shown reflects an expense reimbursement that improved results. Load-adjusted returns are adjusted for the maximum front-end sales load of 2.25%* for Class A shares in the following funds: Convertible Fund, Global Convertible Fund, Market Neutral Income Fund, High Income Opportunities Fund, and Total Return Bond Fund. The maximum front-end sales load for Class A shares of all other funds is 4.75%. There is a 1% contingent deferred sales charge for C shares on certain redemptions within the first year of purchase. Class C shares have been adjusted for the contingent deferred sales charge (CDSC). There are no contingent deferred sales charges or distribution or service fees with respect to Class I shares. The minimum initial investment required to purchase each Fund's Class I shares is $1 million. Class I shares are offered primarily for direct investment by investors through certain tax-exempt retirement plans (including 401(k) plans, 457 plans, employer-sponsored 403(b) plans, profit sharing and money purchase pension plans, defined benefit plans and non-qualified deferred compensation plans) and by institutional clients, provided such plans or clients have assets of at least $1 million. Class I shares may also be offered to certain other entities or programs, including, but not limited to, investment companies, under certain circumstances. *Prior to 2/28/17, the Convertible Fund, Global Convertible Fund, Market Neutral Income Fund, and High Income Opportunities fund had a maximum front-end sales load of 4.75%, and the Total Return Bond Fund had a maximum front-end sales load of 3.75%.

The funds' gross expense ratios as of the prospectus dated 3/1/18 are as follows: Growth A 1.40%, C 2.15% and I 1.15%; Growth and Income A 1.12%, C 1.87% and I 0.87%; Opportunistic Value A 1.67%, C 2.42% and I 1.42%; Dividend Growth A 1.87%, C 2.73% and I 1.80%; Global Growth and Income A 1.54%, C 2.29% and I 1.29%; International Growth A 1.46%, C 2.21% and I 1.21%; Global Equity A 1.53%, C 2.27% and I 1.28%; Evolving World Growth A 1.67%, C 2.41% and I 1.41%; Emerging Market Equity A 2.70%, C 3.45% and I 2.45%; Convertible A 1.18%, C 1.93% and I 0.93%; Global Convertible A 1.46%, C 2.20% and I 1.19%; Market Neutral Income A 1.28%, C 2.03% and I 1.02%; Phineus Long/Short A 2.80%, C 3.55% and I 2.54%; Hedged Equity Income A 2.15%, C 3.04% and I 2.07%; High Income Opportunities A 1.33%, C 2.08% and I 1.08%; and Total Return Bond A 1.08%, C 1.83% and I 0.84%.  

NOT FDIC INSURED | NO BANK GUARANTEE | MAY LOSE VALUE

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 before investing.

Most Recent Distributions

Important Fund Information

An investment in the Fund(s) is subject to risks, and you could lose money on your investment in the Fund(s). There can be no assurance that the Fund(s) will achieve its investment objective. Your investment in the Fund(s) is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency. The risks associated with an investment in the Fund(s) can increase during times of significant market volatility. The Fund(s) also has specific principal risks, which are described below. More detailed information regarding these risks can be found in the Fund’s prospectus.

The principal risks of investing in the Calamos Convertible Fund include: convertible securities risk consisting of the potential for a decline in value during periods of rising interest rates and the risk of the borrower to miss payments, synthetic convertible instruments risk consisting of fluctuations inconsistent with a convertible security and the risk of components expiring worthless, foreign securities risk, equity securities risk, interest rate risk, credit risk, high yield risk, portfolio selection risk and liquidity risk.

As a result of political or economic instability in foreign countries, there can be special risks associated with investing in foreign securities, including fluctuations in currency exchange rates, increased price volatility and difficulty obtaining information. In addition, emerging markets may present additional risk due to potential for greater economic and political instability in less developed countries.

Performance data quoted represents past performance, which is no guarantee of future results. Current performance may be lower or higher than the performance quoted. The principal value and investment return of an investment will fluctuate so that your shares, when redeemed, may be worth more or less than their original cost.

Unmanaged index returns assume reinvestment of any and all distributions and, unlike fund returns, do not reflect fees, expenses or sales charges. Investors cannot invest in an index.

Average annual total return measures net investment income and capital gain or loss from portfolio investments as an annualized average. All performance shown assumes reinvestment of dividends and capital gains distributions. Performance shown reflects an expense reimbursement that improved results. Load-adjusted returns are adjusted for the maximum front-end sales load of 2.25%* for Class A shares in the following funds: Convertible Fund, Global Convertible Fund, Market Neutral Income Fund, High Income Opportunities Fund, and Total Return Bond Fund. The maximum front-end sales load for Class A shares of all other funds is 4.75%. There is a 1% contingent deferred sales charge for C shares on certain redemptions within the first year of purchase. Class C shares have been adjusted for the contingent deferred sales charge (CDSC). There are no contingent deferred sales charges or distribution or service fees with respect to Class I shares. The minimum initial investment required to purchase each Fund's Class I shares is $1 million. Class I shares are offered primarily for direct investment by investors through certain tax-exempt retirement plans (including 401(k) plans, 457 plans, employer-sponsored 403(b) plans, profit sharing and money purchase pension plans, defined benefit plans and non-qualified deferred compensation plans) and by institutional clients, provided such plans or clients have assets of at least $1 million. Class I shares may also be offered to certain other entities or programs, including, but not limited to, investment companies, under certain circumstances. *Prior to 2/28/17, the Convertible Fund, Global Convertible Fund, Market Neutral Income Fund, and High Income Opportunities fund had a maximum front-end sales load of 4.75%, and the Total Return Bond Fund had a maximum front-end sales load of 3.75%.

The funds' gross expense ratios as of the prospectus dated 3/1/18 are as follows: Growth A 1.40%, C 2.15% and I 1.15%; Growth and Income A 1.12%, C 1.87% and I 0.87%; Opportunistic Value A 1.67%, C 2.42% and I 1.42%; Dividend Growth A 1.87%, C 2.73% and I 1.80%; Global Growth and Income A 1.54%, C 2.29% and I 1.29%; International Growth A 1.46%, C 2.21% and I 1.21%; Global Equity A 1.53%, C 2.27% and I 1.28%; Evolving World Growth A 1.67%, C 2.41% and I 1.41%; Emerging Market Equity A 2.70%, C 3.45% and I 2.45%; Convertible A 1.18%, C 1.93% and I 0.93%; Global Convertible A 1.46%, C 2.20% and I 1.19%; Market Neutral Income A 1.28%, C 2.03% and I 1.02%; Phineus Long/Short A 2.80%, C 3.55% and I 2.54%; Hedged Equity Income A 2.15%, C 3.04% and I 2.07%; High Income Opportunities A 1.33%, C 2.08% and I 1.08%; and Total Return Bond A 1.08%, C 1.83% and I 0.84%.  

NOT FDIC INSURED | NO BANK GUARANTEE | MAY LOSE VALUE

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 before investing.

Important Fund Information

An investment in the Fund(s) is subject to risks, and you could lose money on your investment in the Fund(s). There can be no assurance that the Fund(s) will achieve its investment objective. Your investment in the Fund(s) is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency. The risks associated with an investment in the Fund(s) can increase during times of significant market volatility. The Fund(s) also has specific principal risks, which are described below. More detailed information regarding these risks can be found in the Fund’s prospectus.

The principal risks of investing in the Calamos Convertible Fund include: convertible securities risk consisting of the potential for a decline in value during periods of rising interest rates and the risk of the borrower to miss payments, synthetic convertible instruments risk consisting of fluctuations inconsistent with a convertible security and the risk of components expiring worthless, foreign securities risk, equity securities risk, interest rate risk, credit risk, high yield risk, portfolio selection risk and liquidity risk.

As a result of political or economic instability in foreign countries, there can be special risks associated with investing in foreign securities, including fluctuations in currency exchange rates, increased price volatility and difficulty obtaining information. In addition, emerging markets may present additional risk due to potential for greater economic and political instability in less developed countries.

NOT FDIC INSURED | NO BANK GUARANTEE | MAY LOSE VALUE

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 before investing.