Abstract

This paper explores evidence-informed advisory frameworks for managing ultra-high-net-worth (UHNW) client portfolios, with a focus on portfolio governance and fiduciary risk controls. The study synthesizes insights from contemporary literature on wealth management, fiduciary duties, investment governance, and risk management practices. By systematically reviewing scholarly research, industry reports, and regulatory guidelines, a conceptual framework is developed to guide financial advisors and family offices in implementing evidence-based decision-making while mitigating fiduciary and operational risks. The framework emphasizes governance mechanisms, risk assessment tools, and decision-support systems to ensure portfolio integrity, compliance, and client trust. The findings highlight the criticality of integrating structured oversight, scenario-based risk modeling, and robust reporting mechanisms into UHNW portfolio management. Implications for practice include enhancing decision transparency, accountability, and risk mitigation, while providing avenues for future empirical validation of advisory frameworks. The paper contributes to wealth management literature by bridging the gap between theoretical fiduciary principles and practical advisory governance, offering a structured approach for UHNW portfolio oversight.