Celebrating a Decade of Leadership and Record Growth at Calamos Investments

On May 1, 2026, Calamos Investments commemorates a significant milestone—the 10-year anniversary of John Koudounis as Chief Executive Officer (CEO). This period has not only been marked by steadfast growth but also by transformative leadership under Koudounis. As the firm approaches its 50th anniversary, Koudounis is set to redefine the "Portfolio of the Future." This visionary approach focuses on cultivating value through innovation, aiming to outperform market trends.

Under Koudounis' guidance, Calamos has seen its assets under management (AUM) swell to over $50 billion. This remarkable growth is paired with an expansion of the firm’s investment offerings, which now include equities, fixed income, alternative investments, outcome-oriented strategies, and private markets.

John P. Calamos, Sr., the founder, Chairman, and Global Chief Investment Officer, reflected on this milestone, stating, "Our growth in AUM not only signals our dedication to client service over nearly five decades but also highlights John's strategic foresight as CEO."

Throughout this decade, the firm has been keen to create innovations that help investors navigate the complex landscape of finance, manage downside risk, and pursue their long-term goals with greater confidence. Koudounis has infused a legacy of innovation into the fabric of Calamos. Recently, the firm has launched groundbreaking products such as ETFs that provide Bitcoin exposure paired with downside protection, as well as laddered autocallables that yield high, stable income.

Koudounis remarked on this period of growth, "Leading a firm with such a rich history has been transformational. We've strategically innovated to deliver unrivaled value to our clients and advisors. Our notable ventures into digital assets and the launch of our foremost ETF lines have positioned us as leaders within our industry. Despite the obstacles we've encountered, including the pandemic, we've risen to the challenge. The formation of the Chicago CEO COVID-19 Coalition is a testament to our adaptability and commitment to the community. Looking ahead, the future remains exceedingly bright for Calamos, and I eagerly anticipate leading this exceptional team into the next chapter."

As a prominent figure in the financial landscape, Koudounis frequently shares insights at global conferences and appears on major financial news programs. His upcoming conference engagements include speaking at events such as Bitcoin 2026 in Las Vegas and the Milken Global Conference in Beverly Hills. Additionally, he is a familiar presence on networks such as Fox News, CNN, Fox Business, and Bloomberg.

Calamos Investments operates as a diversified global investment firm, providing a range of innovative investment strategies, which encompass alternatives, multi-asset, convertible securities, fixed income, equities, and sustainable equity. The firm serves a wide array of clients, including major corporations, pension funds, endowments, foundations, and individuals, along with the financial advisors and consultants who assist them. Headquartered in the Chicago metro area, Calamos also maintains offices in key financial cities like New York, San Francisco, and Miami.

In conclusion, Calamos Investments stands as a beacon of growth and innovation within the financial sector. Koudounis' leadership has been pivotal in reaching these remarkable highs, and as the firm continues to expand its offerings, it remains committed to delivering value to its clients while pioneering industry advancements for the future.