Wealthy individuals often face a fundamental challenge in portfolio management: while public and private assets are both essential components of their wealth, traditional asset allocation theories often overlook private assets. This paper addresses this challenge by introducing a framework that enables an integrated analysis of public and private assets in portfolio construction. This integrated approach ensures that diversification is not just about adding more markets but about helping to manage risk more effectively through a deeper understanding of market correlations. This research offers a practical blueprint for implementation that may enhance practitioners’ wealth-management approach. The framework bridges theoretical rigor with real-world application, offering wealth managers a systematic way to analyze, integrate and optimize portfolios including significant private holdings.