Calamos Launches New CTAG ETF in Texas

Shareholders of the former mutual fund now hold an ETF that trades at market prices throughout the day.

Updated on Oct. 29, 2026 in Investing

Isometric editorial illustration featuring geometric stone and metallic forms in a desert landscape, representing structural financial change. — Calamos Investments has launched the CTAG active ETF, transitioning from its former mutual fund structure and enabling intraday trading for investors. AI Illustration. Upload story photo >

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Calamos Investments has officially marked the launch of its new active ETF, CTAG, with a bell-ringing ceremony at the Texas Stock Exchange. The fund, which began trading on September 21, 2026, transitioned from a previous mutual fund structure.

Why it matters

For investors, this launch represents a shift in how they can access the firm's small- and mid-cap growth strategy through a vehicle that trades on an exchange. The transition affects how shareholders buy and sell positions compared to the prior mutual fund model.

The firm reported $53 billion in total assets under management as of September 30, 2026, and the CTAG fund mandates that at least 80 percent of its net assets are invested in small- and mid-cap growth equities.

The players

Calamos Investments

An investment management firm founded in 1977 that provides equity and alternative strategies for retail and institutional investors.

Brandon Nelson

The investment manager responsible for overseeing the strategy and holdings of the CTAG ETF.

The details

The CTAG fund replaces the former Calamos Timpani SMID Growth mutual fund. Unlike a traditional mutual fund, investors in this ETF can buy and sell shares through brokerage accounts at market prices throughout the trading day. The fund's management team employs proprietary research to select companies that demonstrate potential for stronger earnings growth within the small- and mid-cap sectors.

September 21, 2026: The CTAG ETF began trading on the exchange.
September 30, 2026: Calamos reported $53 billion in assets under management.
October 29, 2026: The company held its bell-ringing ceremony at the Texas Stock Exchange.

Money Landscape

The transition of the Timpani strategy into an ETF structure follows a broader industry trend of converting mutual funds into active exchange-traded products. This move reflects a shift toward providing investors with increased liquidity and intraday pricing capabilities.

If you hold shares in the former mutual fund, your investment has converted to the CTAG ticker. Discuss with a financial professional how the change in liquidity and the ability to trade throughout the day impacts your existing portfolio and tax strategy.

The takeaway

Investors should review the prospectus for the new CTAG fund to understand how its active management approach and expense structure compare to their previous holdings. Consult with a qualified financial advisor to ensure this investment aligns with your long-term risk tolerance and goals.