CMNIX: Outperformance Over a Full Interest Rate Cycle

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 1-866-363-9219. Read it carefully before investing.

Opinions and estimates offered constitute our judgment and are subject to change without notice, as are statements of financial market trends, which are based on current market conditions. We believe the information provided here is reliable, but do not warrant its accuracy or completeness. This material is not intended as an offer or solicitation for the purchase or sale of any financial instrument. The views and strategies described may not be suitable for all investors. Opinions are subject to change due to changes in the market, economic conditions or changes in the legal and/or regulatory environment and may not necessarily come to pass. This information is provided for informational purposes only and should not be considered tax, legal, or investment advice. References to specific securities, asset classes and financial markets are for illustrative purposes only and are not intended to be, and should not be interpreted as, recommendations.

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 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.

The principal risks of investing in the Calamos 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.

The Bloomberg US Aggregate Bond Index is an unmanaged index comprised of US investment grade, fixed rate bond market securities, including government, government agency, corporate and mortgage-backed securities between one and ten years to maturity.

Standard deviation is measure of volatility.

900328 0824