Abstract: THE IMPACT OF ACCOUNTING FOR INVESTMENT PORTFOLIOS AND SECURITIES
This study aims to: (1) evaluate the unique accounting requirements for investment portfolios and securities; (2) assess the impact of accurate accounting on portfolio performance and investor confidence; and (3) identify the challenges and best practices in managing investment portfolios. A survey research design was employed to collect data from a diverse group of professionals. Using Taro Yamane's formula, a sample size of 300 fund accountants and portfolio managers from Lagos, Nigeria, was determined to be statistically sufficient. The study includes a case study of a major investment firm in Lagos to provide real-world insights. A reliability coefficient score of 0.87 indicates high reliability of the survey instrument. Findings suggest that precise accounting practices are crucial for the accurate valuation of securities, compliance with regulatory requirements, and enhancing portfolio performance. The study identifies challenges such as the complexity of valuing diverse securities and the need for specialized knowledge in accounting for investment portfolios. Recommendations include adopting advanced accounting systems for portfolio management, enhancing training programs for fund accountants, and implementing best practices for securities valuation and financial reporting.