CALAMOS NASDAQ-100 STRUCTURED ALT PROTECTION ETF - SEPTEMBER

Calamos Nasdaq-100 Structured Alt Protection ETF — September (the “Fund”) seeks to provide investment results that, before taking fees and expenses into account, match the positive price return of the Invesco QQQ TrustSM, Series 1 (“Underlying ETF”) up to a cap of 8.35% (the “Cap”), while protecting against 100% of negative price return of the Underlying ETF (before fees and expenses), for the period from September 1, 2024 through August 31, 2025.