The study investigates the impact of globalisation on stock market performance in Nigeria. We gathered secondary data from the Nigerian Exchange Group for the years 2016–2024 using an ex post-facto research design. Results show that market capitalisation, stock turnover ratio, and daily stock trading volume in Nigeria are significantly positively impacted by globalisation as measured by foreign direct investment (FDI). The study has several implications including that globalisation can enhance economic growth, promote trade and augment economic efficiency. We recommend that; policy makers and market regulators should facilitate increased participation in international financial markets by implementing policies that attract FDI and portfolio investments.