This study examines the performance of the stock portfolios of Indonesian and Malaysian Manufacturing companies using the Wealth Added Index (WAI) measurement from Stern Value Management. The research was carried out by accessing financial reports from the Indonesian stock exchange website (www.IDX.co.id.) and the Malaysia Stock Exchange (bursamalaysia.com). In this study, the analysis method was carried out in two ways: descriptive analysis and inferential analysis. The descriptive analysis describes each of the variables studied. In contrast, inferential analysis shows the relationship between each variable obtained through data processing. The method of estimating the research results uses a complete panel data regression analysis (balanced panel data) with the Stata SE 14 device to answer the research questions. The study results prove that voluntary disclosure has a positive effect on stock portfolio performance in both Indonesia and Malaysia. The disclosure of internet financial reporting has a positive effect on stock portfolio performance in Indonesia and Malaysia, and the third disclosure of Human Resources Accounting has a positive effect on performance. Stock portfolio in both Indonesia and Malaysia. The implication of this research proves that voluntary disclosure, internet financial reporting disclosure, and human resource accounting disclosure have a role in stock portfolio performance. Disclosure of financial statements must be well organized. A new standard of disclosure of financial statements is needed that accommodates voluntary disclosures, disclosures of internet financial reporting, and Human Resources Accounting disclosures.