- Sector
- Financial Services
- Industry
- Asset Management - Global
- Address
- 2020 Calamos Court Naperville United States of America 60563-2787
- IPO Date
- Nov 1, 2024
- Business
- Calamos Investments LLC (Calamos) is a diversified global investment management firm that offers a broad range of innovative strategies, including structured protection exchange-traded funds (ETFs), liquid alternatives, convertibles, multi-asset solutions, fixed income, equity, sustainable equity, private credit, and closed-end funds; the firm serves individual investors, financial intermediaries, and institutions through ETFs, mutual funds, interval funds, UCITS funds, and separately managed accounts. The Calamos S&P 500 Structured Alt Protection ETF – November (ticker: CPSN), launched on November 1, 2024, provides investors with exposure to the positive price return of the S&P 500 Index up to a defined cap rate (recently announced at approximately 6.28% to 7.43% gross before fees) while delivering 100% protection against downside losses over a one-year outcome period ending in late October 2025, before fees and expenses; CPSN forms part of Calamos' suite of 12 Structured Protection ETFs introduced in April 2024 to address equity risk control, tax-advantaged cash alternatives, and retirement derisking needs. Founded in 1977 and headquartered in Naperville, Illinois, with additional offices in Chicago, New York, San Francisco, Milwaukee, Portland, and the Miami area, Calamos manages over $40 billion in assets under management, including more than $18 billion in liquid alternatives as of mid-2025, and operates primarily in the United States while pursuing global investment opportunities. Recent strategic developments include the July 2025 launch of the Calamos Aksia Private Equity & Alternatives Fund (CAPVX) in partnership with Aksia, expanding retail access to private equity strategies such as buyouts, growth equity, and venture capital following the success of their 2023 private credit fund (CAPIX); the firm also continues to innovate in its alternatives lineup with new closed-end fund ETFs and maintains strong institutional relationships evidenced by significant portfolio additions from investors like Arrowstreet Capital and Acadian Asset Management in Q3 2025.