This qualitative study examined portfolio optimization techniques and its usage in the Nigerian capital market. The study compared portfolio optimization techniques of different selected stocks in the capital market. We optimize portfolios using each technique and evaluate their performance using risk-adjusted return metrics. The study found that while all three optimization techniques have their merits, the Genetic Algorithm shows superior performance in terms of risk-adjusted returns in the Nigerian capital market. The study thus recommended that Investors are advised to consider incorporating Genetic Algorithms into their portfolio optimization strategies.