Data as of 3/31/19

Data as of 3/31/19

Data as of 3/31/19

Before investing carefully consider the fund’s investment objectives, risks, charges and expenses. Please see the prospectus and summary prospectus containing this and other information which can be obtained by calling 1-800-582-6959. Read it carefully before investing.

Alternative investments may not be suitable for all investors, and the risks of alternative investments vary based on the underlying strategies used. Many alternative investments are highly illiquid, meaning that you may not be able to sell your investment when you wish to.

Some of the risks associated with investing in alternatives may include hedging risk – hedging activities can reduce investment performance through added costs; derivative risk- derivatives may experience greater price volatility than the underlying securities; short sale risk - investments may incur a loss without limit as a result of a short sale if the market value of the security increases; interest rate risk – loss of value for income securities as interest rates rise; credit risk – risk of the borrower to miss payments; liquidity risk – low trading volume may lead to increased volatility in certain securities; non-U.S. government obligation risk – non-U.S. government obligations may be subject to increased credit risk; portfolio selection risk – investment managers may select securities that fare worse than the overall market. Alternative investments may not be suitable for all investors.

Morningstar ratings shown are for load-waived shares that do not include any front-end sales load. Not all investors have access to or may invest in the load-waived share class shown. Other share classes with front-end or back-end sales charges may have different ratings than the ratings shown. Additionally, some A-share mutual funds for which Morningstar calculates a load-waived A-share star rating may not waive their front-end sales load. There can be no assurance that the Fund(s) will achieve its investment objective.

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.

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(s) will achieve its investment objective. Your investment in the Fund 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 can increase during times of significant market volatility. The Fund also has specific principal risks, which are described below. More detailed information regarding these risks can be found in the Fund’s prospectus.

Calamos Phineus Long/Short Fund

The principal risks of investing in the Phineus Long/Short Fund include: equity securities risk consisting of market prices declining in general, short sale risk consisting of potential for unlimited losses, foreign securities risk, currency risk, geographic concentration risk, other investment companies (including ETFs) risk, derivatives risk, options risk, and leverage risk.

Calamos Market Neutral Fund

The principal risks of investing in the Market Neutral Income Fund include: equity securities risk consisting of market prices declining in general, 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, convertible hedging risk, covered call writing risk, options risk, short sale risk, interest rate risk, credit risk, high yield risk, liquidity risk, portfolio selection risk, and portfolio turnover risk.

Calamos Hedged Equity Fund

The principal risks of investing in the Hedged Equity Fund include: covered call writing, options, equity securities, correlation, mid-sized company, short sale, interest rate, credit, liquidity, portfolio selection, portfolio turnover, foreign securities, American depository receipts, and REITS.

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. Convertible Hedging Risk — If the market price of the underlying common stock increases above the conversion price on a convertible security, the price of the convertible security will increase. The fund’s increased liability on any outstanding short position would, in whole or in part, reduce this gain. Covered Call Writing Risk — As the writer of a covered call option on a security, the Fund foregoes, during the option’s life, the opportunity to profit from increases in the market value of the security, covering the call option above the sum of the premium and the exercise price of the call. Options Risk — The Fund’s ability to close out its position as a purchaser or seller of an over-the-counter or exchange-listed put or call option is dependent, in part, upon the liquidity of the option market. There are significant differences between the securities and options markets that could result in an imperfect correlation among these markets, causing a given transaction not to achieve its objectives. The Fund’s ability to utilize options successfully will depend on the ability of the Fund’s investment adviser to predict pertinent market movements, which cannot be assured. 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. Correlation Risk — The effectiveness of the Fund’s index option-based risk management strategy may be reduced if the performance of the Fund’s equity portfolio does not correlate to that of the indices underlying its option positions. Mid-Sized Company Risk — Mid-sized company stocks have historically been subject to greater investment risk than large company stocks. The prices of mid-sized company stocks tend to be more volatile than prices of large company stocks. Short Sale Risk — The Fund may incur a loss (without limit) as a result of a short sale if the market value of the borrowed security increases between the date of the short sale and the date the Fund replaces the security. The Fund may be unable to repurchase the borrowed security at a particular time or at an acceptable price. 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. Recent events in the fixed-income market may expose the Fund to heightened interest rate risk and volatility. 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. 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. Portfolio Leveraging Risk — Leverage is the potential for the Fund to participate in gains and losses on an amount that exceeds the Fund’s investment. Leveraging risk is the risk that certain transactions of the Fund may give rise to leverage, causing the Fund to be more volatile and experience greater losses than if it had not been leveraged. The Fund’s use of short sales and investments in derivatives subject the Fund to leveraging risk. Derivatives Risk — Derivatives are instruments, such as futures, options and forward foreign currency contracts, whose value is derived from that of other assets, rates or indices. The use of derivatives for non-hedging purposes may be considered more speculative than other types of investments. Derivatives can be used for hedging (attempting to reduce risk by offsetting one investment position with another) or non-hedging purposes. Hedging with derivatives may increase expenses, and there is no guarantee that a hedging strategy will work. 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. Portfolio Turnover Risk — The portfolio managers may actively and frequently trade securities or other instruments in the Fund’s portfolio to carry out its investment strategies. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent and active trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains. 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. American Depositary Receipts — The stocks of most foreign companies that trade in the U.S. markets are traded as American Depositary Receipts (ADRs). U.S. depositary banks issue these stocks. Each ADR represents one or more shares of foreign stock or a fraction of a share. The price of an ADR corresponds to the price of the foreign stock in its home market, adjusted to the ratio of the ADRs to foreign company shares. Therefore while purchasing a security on a U.S. exchange, the risks inherently associated with foreign investing still apply to ADRs. REITs Risk — Investments in the real estate industry, including real estate investment trusts (REITs), are particularly sensitive to economic downturns and are sensitive to factors such as changes in real estate values, property taxes and tax laws, interest rates, cash flow of underlying real estate assets, occupancy rates, government regulations affecting zoning, land use and rents and the management skill and creditworthiness of the issuer. Companies in the real estate industry also may be subject to liabilities under environmental and hazardous waste laws. In addition, the value of a REIT is affected by changes in the value of the properties owned by the REIT or mortgage loans held by the REIT. REITs are also subject to default and prepayment risk. Many REITs are highly leveraged, increasing their risk. The Fund will indirectly bear its proportionate share of expenses, including management fees, paid by each REIT in which it invests in addition to the expenses of the Fund.

Calamos Market Neutral Income Fund’s load-waived Class I shares received 4 stars for 3 years, 5 stars for 5 years, and 5 stars for 10 years out of 121, 95 and 33 Market Neutral Funds, respectively, for the period ended 6/30/19.

Calamos Hedged Equity Fund’s load-waived Class I shares received 4 stars for 3 years out of 95 Options-based Funds for the period ended 6/30/19.

Calamos Phineus Long Short Fund's load-waived Class I shares received 4 stars for 3 years out of 206 Long-Short Equity Funds for the period ended 6/30/19.

Morningstar Ratings™ are based on risk-adjusted returns and are through 6/30/19 for Class I shares and will differ for other share classes. Morningstar ratings are based on a risk-adjusted return measure that accounts for variation in a fund’s monthly historical performance (reflecting sales charges), placing more emphasis on downward variations and rewarding consistent performance. Within each asset class, the top 10%, the next 22.5%, 35%, 22.5%, and the bottom 10% receive 5, 4, 3, 2 or 1 star, respectively. Each fund is rated exclusively against U.S. domiciled funds. The information contained herein is proprietary to Morningstar and/or its content providers; may not be copied or distributed; and is not warranted to be accurate, complete or timely. Neither Morningstar nor its content providers are responsible for any damages or losses arising from any use of this information. Source: ©2018 Morningstar, Inc.