Portfolio Management Practices and Investment Returns Among Nigerian Pension Fund Administrators

Pension fund administrators in Nigeria bear fiduciary responsibility for managing retirement savings on behalf of millions of contributors, making portfolio management quality a matter of both individual welfare and systemic financial importance. This study evaluates portfolio management practices and their relationship with investment returns among pension fund administrators licensed by the National Pension Commission. Using a mixed-methods approach, primary data are gathered from 45 portfolio managers across 12 registered pension fund administrators through in-depth questionnaires and structured interviews, while secondary return data from National Pension Commission reports supplement the analysis. The study examines asset allocation decisions, compliance with regulatory investment guidelines, risk monitoring frameworks, and the use of performance attribution analysis. Returns are assessed using risk-adjusted measures including the Sharpe ratio and the information ratio to account for the varying risk profiles of managed funds. The theoretical framework draws on modern portfolio theory, the liability-driven investment approach, and the pension finance literature on long-horizon asset-liability management. The analysis evaluates whether the investment guideline restrictions of the National Pension Commission constrain administrators from achieving optimal risk-return outcomes, particularly in the context of rising inflation eroding real returns on fixed income instruments. Findings are expected to inform the National Pension Commission's investment guideline review process, pension fund administrators' internal strategy development, and regulatory debate on expanding the investable asset universe for pension funds in Nigeria. Keywords: pension fund, portfolio management, investment returns, National Pension Commission, asset allocation