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.

Important Information about Risk

Short Sale Risk— Short sales involve the risk that the Fund may incur a loss if the market value of a borrowed security increases between the date of the short sale and the date the Fund replaces the security. A short position in a security poses more risk than holding the same security long. Because a short position loses value as the security's price increases, the loss on a short sale is theoretically unlimited. It is possible that the market value of the securities the Fund holds in long positions will decline at the same time that the market value of the securities the Fund has sold short increases, thereby increasing the Fund's potential volatility.

Leverage Risk— Short sales involve leverage because the Fund borrows securities and then sells them, effectively leveraging its assets. The use of leverage may magnify gains or losses for the Fund. Assets segregated to cover those transactions may decline in value and are not available to meet redemptions.

Quantitative Investing Risk— The value of securities selected using quantitative-based analysis can react differently to issuer, political, market, and economic developments than the market as a whole or securities selected using only fundamental analysis. The factors used in quantitative-based analysis and the weight placed on those factors may not be predictive of a security's value. In addition, factors that affect a security's value can change over time and these changes may not be reflected in the quantitative model.

Portfolio Turnover Risk— Engaging in active and frequent trading of securities may result in a higher than average level of capital gains and greater transaction costs to the Fund, including brokerage commissions or dealer mark-ups and other transaction costs on the sale and reinvestments of securities. Such sales may also result in the realization of capital gains, including short-term capital gains (which are taxed at ordinary income tax rates for federal income tax purposes, rather than at lower capital gains rates) and may adversely impact the Fund's performance.

MidCap/ Small Cap Risk— The Fund may invest in mid-size and small companies which present greater risk and higher volatility than investments in larger companies.

Foreign Securities Risk—The Fund may also invest up to 25% of its assets in the securities of foreign issuers. As a result of political or economic instability in foreign countries, there can be special risks associated with investing foreign securities, including fluctuations in currency exchange rates, increased price volatility, and difficulty obtaining information.

Calamos Financial Services LLC, Distributor

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