American Century Investments expanded its exchange‑traded fund (ETF) platform on May 28, 2026 with the debut of the American Century Securitized Credit ETF (ASEC), a new actively‑managed fixed income product now trading on the Nasdaq Exchange under the ticker “ASEC.” The launch responds to persistent investor demand for diversified income‑oriented solutions that extend beyond traditional core bond allocations and corporate credit exposures.

ASEC’s strategy centers on providing high income potential and diversification relative to conventional fixed income benchmarks by investing principally in investment‑grade U.S. securitized debt securities. These include asset‑backed securities (ABS) and other securitized subsectors that are often underrepresented in broad bond indices, along with components such as residential mortgage‑backed securities (RMBS), commercial mortgage‑backed securities (CMBS), collateralized loan obligations (CLOs) and government and agency‑related debt. The fund’s active management framework is designed to capture perceived market inefficiencies, emphasize structural credit analysis and apply disciplined risk controls.

Fund Positioning and Investment Philosophy

According to American Century’s press release, the fund seeks to combine fundamental research with proprietary analytics and active risk management to pursue a differentiated return profile relative to similarly rated corporate credit securities. The firm positions the strategy to potentially outyield comparable investment‑grade corporate offerings while maintaining lower portfolio duration and high credit quality, characteristics which may appeal to investors balancing income objectives with sensitivity to interest rate volatility.

Management of ASEC is led by Senior Portfolio Manager Paul Norris and Portfolio Manager Michael Waggaman. Both bring extensive experience within the securitized credit landscape, supported by American Century’s broader fixed income team, which oversees approximately $40 billion in fixed income assets. The fund carries a gross expense ratio of 0.29%, in line with competitive pricing for active fixed income ETFs targeting specialized sectors.

Context within American Century’s ETF Platform

ASEC expands an already broad suite of fixed income ETFs at American Century, which includes offerings focused on diversified corporate bonds, municipal bonds, short duration income, multisector income, floating rate strategies and high‑yield credit. These products, along with ASEC, reflect the firm’s broader commitment to active management and diversified fixed income solutions accessible through the ETF wrapper, which has gained popularity among advisors and institutional investors seeking cost efficiency and daily liquidity.

American Century launched its ETF program in 2018 and has since grown rapidly; according to the firm, it currently ranks as the fourth‑largest issuer of active ETFs in the U.S. by assets under management, with one of the fastest organic growth rates among its peers. The firm’s ETF lineup has been augmented over time through both broad‑based and niche strategies, and management has emphasized responsiveness to investor demand for income, diversification and strategic allocation tools.

Securitized Credit: A Growing ETF Niche

The securitized credit space within the ETF market has attracted growing interest as investors seek broader portfolio diversification and diversified income streams, particularly in environments where traditional bond yields may be compressed. Securitized credit strategies access pools of cash flows backed by underlying assets such as consumer loans, lease receivables, mortgages and business‑related debt. Exposure through ETFs allows for transparent, tradable access to these markets without the complexities often associated with direct purchases of individual securities.

ASEC’s launch provides a strategic complement to existing securitized credit ETFs in the market. For example, products such as the Touchstone Securitized Income ETF (NYSE Arca: TSEC) have provided investors broad exposure to securitized fixed income, incorporating a range of investment‑grade and diversified credit instruments. Other vehicles, such as the recently converted DoubleLine Securitized Credit ETF (DSCO), have also tapped this niche with actively managed approaches. Collectively, these offerings illustrate how ETF issuers are innovating to serve investor demand for yield and diversification with professionally managed securitized credit exposure.

Market Reception and Strategic Implications

While trading data for ASEC remains limited in its first days on market — typical for newly launched ETFs — industry observers will monitor initial liquidity, bid‑ask spreads, early price discovery and investor flows as signals of market reception. Early product uptake among financial advisors and institutional allocators could further validate demand for differentiated fixed income allocations that veer beyond plain‑vanilla bond exposures. If ASEC garners meaningful assets under management and demonstrates competitive performance through varying market conditions, it could reinforce the case for active securitized credit ETFs as core components of diversified fixed income portfolios.

Beyond pure performance metrics, ASEC’s success may also hinge on the broader economic backdrop, including credit spread behavior, interest rate expectations and macroeconomic growth dynamics, which influence the relative attractiveness of securitized versus corporate or sovereign debt. Market participants often assess securitized credit’s risk‑return trade‑offs in the context of yield curves, inflation expectations and sector‑specific factors such as housing market trends and consumer credit performance.

Implications for Investors and Advisors

For financial advisors and institutional investors, ASEC’s introduction offers an additional tactical tool for income‑oriented allocations. Incorporating a securitized credit ETF into broader fixed income exposures may help address specific portfolio objectives, including yield enhancement, diversification and duration management. Given its actively managed nature, ASEC also introduces the potential for security‑level selection to mitigate sector‑specific risks or capitalize on dislocations relative to benchmarks.

Nevertheless, investors should weigh the fund’s characteristics, including its targeted exposure, active management approach and cost structure, against alternative products and benchmarks. Fixed income products that target securitized markets inherently carry risks associated with prepayment, credit quality and liquidity, and performance may fluctuate with changes in economic conditions and market sentiment. Prospective investors are advised to review the fund’s prospectus, risk disclosures and underlying holdings as part of their due diligence.

Outlook and Future Developments

In the longer term, ASEC’s integration into American Century’s ETF lineup could signal further product development in the securitized and specialized fixed income arenas. ETF issuers have increasingly embraced nuanced strategies that leverage active management in pursuit of income and diversification objectives, and the success of offerings like ASEC may spur competitors to expand their own securitized credit or niche fixed income ETFs. Market conditions, regulatory developments and investor preferences will likely shape how these strategies evolve.

As the ETF industry continues its rapid evolution with innovations across asset classes and strategies, ASEC’s debut represents a meaningful entry in the fixed income space, one that addresses core allocation themes and broader investor demand for yield and diversification in a dynamic market environment.