Needs-Based Optimization (Nebo)

Nebo is an award-winning asset allocation and portfolio management platform for Registered Investment Advisors (RIAs) that streamlines and automates the process of building institutional quality, dynamic, real-time model portfolios personalized to each client.

We view Nebo as a uniquely custom CIO dashboard and an investment policy statement enhancer. The platform embeds GMO asset allocation insights and expertise and is built on almost a decade of deep research to solve the problem of portfolio construction for individuals.

One of Nebo's most important insights is that the primary risk an investor faces is not volatility. Rather, it is that they don’t have the resources they need when they need them. Instead of orienting portfolios around traditional concepts of risk aversion and volatility, we orient portfolios around the needs and circumstances of each investor.

Our vision is to help people achieve financial well-being and to help financial advisors build better portfolios for all their clients.

Nebo Management


Martin Tarlie

Dr. Tarlie is a member of GMO’s Asset Allocation team and the Head of NEBO. Prior to re-joining GMO in 2018, he was a managing director at QMA. He previously worked on GMO’s Global Equity team from 2007 to 2014. Prior to that he worked at Breakwater Trading and at Marlin Capital Corp as a fundamental equity analyst and the director of research. Dr. Tarlie earned his bachelor's degree in physics from the University of Michigan, his PhD in theoretical condensed matter physics from the University of Illinois at Urbana-Champaign, and his MBA from the University of Chicago. He was also a postdoctoral research fellow at the James Franck Institute at the University of Chicago and is a CFA charterholder.


Ben Inker

Co-Head of Asset Allocation

Mr. Inker is co-head of GMO’s Asset Allocation team, a member of the GMO Board of Directors and a partner of the firm. He joined GMO in 1992 following the completion of his bachelor's degree in Economics from Yale University. In his years at GMO, Mr. Inker has served as an analyst for the Quantitative Equity and Asset Allocation teams, as a portfolio manager of several equity and asset allocation portfolios, as co-head of International Quantitative Equities, and as CIO of Quantitative Developed Equities. He is a CFA charterholder.