Calamos Launches CPSA With an 8.74% Initial Cap & 100% Downside Protection to S&P 500® Over One Year Calamos S&P 500® Structured Alt Protection ETF – August (CPSA), offering an initial cap rate of 8.74% over a one-year outcome period, launched today in response to investor demand for capital-protected strategies. The Calamos Structured Protection ETF™ [...] The post Calamos Launches CPSA With an 8.74% Initial Cap & 100% Downside Protection to S&P 500® Over One Year appeared first on ETF Trends .