AllianceBernstein (NYSE: AB), Brookfield Asset Management (NYSE: BAM), and Carlyle (NASDAQ: CG) announced a collaboration to provide a private markets investment solution for defined contribution retirement plans, according to a company statement.

The solution, called "ABC [ONE]," is designed to work alongside existing target-date funds or managed-account options in 401(k) plans. The product will automatically adjust allocations across private credit, private real assets, and private equity based on participants' ages and retirement timeline.

AllianceBernstein will manage the overall allocation and the private credit component, while Brookfield will handle private real assets and Carlyle will manage the private equity portion. AB currently manages $105 billion in assets under management in custom target-date solutions as of the first quarter of 2026.

"For more than a decade, AB has been incorporating private assets in custom target-date funds, in both the US and the UK," said Onur Erzan, President of AllianceBernstein. "Based on our investment research and hands-on experience, we believe that when a plan decides to include them, it's critical to optimize the deployment of these assets for DC participants."

The collaboration brings together three major asset managers with significant scale. AllianceBernstein holds $881 billion in total assets under management as of April 30, 2026. Brookfield manages over $1 trillion across various alternative investments, while Carlyle oversees $475 billion in assets under management as of March 31, 2026.

The solution utilizes AB's proprietary technology platform designed for defined contribution plans and aims to provide retirement savers with access to private market investments that have traditionally been available primarily to institutional investors.