CPSL, Don’t Retire from Equity Markets

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.

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.

Investing involves risks. Loss of principal is possible. The Funds face numerous market trading risks, including authorized participation concentration risk, cap change risk, capital protection risk, capped upside risk, cash holdings risk, clearing member default risk, correlation risk, derivatives risk, equity securities risk, investment timing risk, large-capitalization investing risk, liquidity risk, market maker risk, market risk, non-diversification risk, options risk, premium-discount risk, secondary market trading risk, sector risk, tax risk, trading issues risk, underlying ETF risk and valuation risk. For a detailed list of fund risks see the prospectus.

FUND-OF-FUNDS RISK. Shareholders of the Fund will experience investment returns that are different than the investment returns provided by an Underlying ETF. The Fund does not itself pursue a defined outcome strategy, nor does the Fund itself provide downside protection against SPY losses. Because the Fund will typically not purchase an Underlying ETF on the first day of a Target Outcome Period, it is not likely that the stated outcome of the Underlying ETF will be realized by the Fund. The Fund will be continuously exposed to the investment profiles of each of the Underlying ETFs during their respective Target Outcome Periods. The Fund, with its aggregate exposure to each of the Underlying ETFs, may have investment returns that are inferior to that of any single Underlying ETF or group of Underlying ETFs over any given time period. In between the semi-annual rebalance period of the Index, because the Fund is not equally weighted on a continuous basis, the Fund may be exposed to one or more Underlying ETFs disproportionately when compared to other Underlying ETFs. In such circumstances, the Fund will be subject to the over-weighted performance of such Underlying ETF. As a shareholder in other ETFs, the Fund bears its proportionate share of each ETF's expenses, subjecting Fund shareholders to duplicative expenses.

There are no assurances the Underlying ETFs will be successful in providing the sought-after protection. The outcomes that the Underlying ETFs seek to provide may only be realized if you are holding shares on the first day of the outcome period and continue to hold them on the last day of the outcome period, approximately one year. There is no guarantee that the outcomes for an outcome period will be realized or that the Underlying ETFs will achieve its investment objective. If the outcome period has begun and the underlying ETF has increased in value, any appreciation of the Fund(s) by virtue of increases in the underlying ETF since the commencement of the outcome period will not be protected by the sought-after protection, and an investor could experience losses until the underlying ETF returns to the original price at the commencement of the outcome period. The Underlying ETFs are subject to an upside return cap (the "Cap") that represents the maximum percentage return an investor can achieve from an investment in the fund(s) for the outcome period, before fees and expenses. If the outcome period has begun and the Underlying ETFs have increased in value to a level near to their individual Cap, an investor purchasing at that price has little or no ability to achieve gains but remains vulnerable to downside risks. Additionally, the Cap may rise or fall from one outcome period to the next. Unlike the Underlying ETFs, the Fund itself does not pursue a target outcome strategy. The protection is only provided by the Underlying ETFs and the Fund itself does not provide any stated downside protection against losses. The Fund will likely not receive the full benefit of the Underlying ETF downside protections and could have limited upside potential. The Fund's returns are limited by the caps of the Underlying ETFs.

The "S&P 500^®" is a product of S&P Dow Jones Indices LLC or its affiliates ("SPDJI"), and has been licensed for use by Calamos Advisors LLC ("Calamos Advisors"). S&P^®, S&P 500^®, US 500, The 500, iBoxx^®, iTraxx^® and CDX^® are trademarks of S&P Global, Inc. or its affiliates ("S&P"); Dow Jones^® is a registered trademark of Dow Jones Trademark Holdings LLC ("Dow Jones"); and these trademarks have been licensed for use by SPDJI and sublicensed for certain purposes by Calamos Advisors LLC ("Calamos Advisors"). It is not possible to invest directly in an index. Calamos S&P 500^® Structured Protection ETFs are not sponsored, endorsed, sold or promoted by SPDJI, Dow Jones, S&P, any of their respective affiliates (collectively, "S&P Dow Jones Indices"). S&P Dow Jones Indices makes no representation or warranty, express or implied, to the owners of the Calamos S&P 500^® Structured Protection ETFs or any member of the public regarding the advisability of investing in securities generally or in Calamos S&P 500^® Structured Protection ETFs particularly or the ability of the "S&P 500^®" to track general market performance. Past performance of an index is not an indication or guarantee of future results. S&P Dow Jones Indices' only relationship to Calamos Advisors LLC ("Calamos Advisors") with respect to the "S&P 500^®" is the licensing of the Index and certain trademarks, service marks and/or trade names of S&P Dow Jones Indices and/or its licensors. The "S&P 500^®" is determined, composed and calculated by S&P Dow Jones Indices without regard to Calamos Advisors LLC ("Calamos Advisors") or the Calamos S&P 500^® Structured Protection ETFs. S&P Dow Jones Indices has no obligation to take the needs of Calamos Advisors LLC ("Calamos Advisors") or the owners of Calamos S&P 500^® Structured Protection ETFs into consideration in determining, composing or calculating the "S&P 500^®". S&P Dow Jones Indices has no obligation or liability in connection with the administration, marketing or trading of Calamos S&P 500^® Structured Protection ETFs. There is no assurance that investment products based on the "S&P 500^®" will accurately track index performance or provide positive investment returns. S&P Dow Jones Indices LLC is not an investment adviser, commodity trading advisory, commodity pool operator, broker dealer, fiduciary, promoter" (as defined in the Investment Company Act of 1940, as amended), "expert" as enumerated within 15 U.S.C. § 77k(a) or tax advisor.

NEITHER S&P DOW JONES INDICES NOR THIRD PARTY LICENSOR GUARANTEES THE ADEQUACY, ACCURACY, TIMELINESS AND/OR THE COMPLETENESS OF THE "S&P 500^®" OR ANY DATA RELATED THERETO OR ANY COMMUNICATION, INCLUDING BUT NOT LIMITED TO, ORAL OR WRITTEN COMMUNICATION (INCLUDING ELECTRONIC COMMUNICATIONS) WITH RESPECT THERETO. S&P DOW JONES INDICES SHALL NOT BE SUBJECT TO ANY DAMAGES OR LIABILITY FOR ANY ERRORS, OMISSIONS, OR DELAYS THEREIN. S&P DOW JONES INDICES MAKES NO EXPRESS OR IMPLIED WARRANTIES, AND EXPRESSLY DISCLAIMS ALL WARRANTIES, OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR USE OR AS TO RESULTS TO BE OBTAINED BY CALAMOS ADVISORS LLC ("CALAMOS ADVISORS"), OWNERS OF THE CALAMOS S&P 500^® STRUCTURED PROTECTION ETFS, OR ANY OTHER PERSON OR ENTITY FROM THE USE OF THE "S&P 500^®" OR WITH RESPECT TO ANY DATA RELATED THERETO. WITHOUT LIMITING ANY OF THE FOREGOING, IN NO EVENT WHATSOEVER SHALL S&P DOW JONES INDICES BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES INCLUDING BUT NOT LIMITED TO, LOSS OF PROFITS, TRADING LOSSES, LOST TIME OR GOODWILL, EVEN IF THEY HAVE BEEN ADVISED OF THE POSSIBLITY OF SUCH DAMAGES, WHETHER IN CONTRACT, TORT, STRICT LIABILITY, OR OTHERWISE. S&P DOW JONES INDICES HAS NOT REVIEWED, PREPARED AND/OR CERTIFIED ANY PORTION OF, NOR DOES S&P DOW JONES INDICES HAVE ANY CONTROL OVER, THE LICENSEE PRODUCT REGISTRATION STATEMENT, PROSPECTUS OR OTHER OFFERING MATERIALS. THERE ARE NO THIRD-PARTY BENEFICIARIES OF ANY AGREEMENTS OR ARRANGEMENTS BETWEEN S&P DOW JONES INDICES AND CALAMOS ADVISORS LLC ("CALAMOS ADVISORS"), OTHER THAN THE LICENSORS OF S&P DOW JONES INDICES.