The role of stock market in the development of any economy has been regarded as crucial most especially in developing nations like Nigeria where mobilization of capital and resources is a pertinent issue. The drive propelling this study was to assess the interaction of the capital market performance with selected macroeconomic variables in Nigeria. The study adopted ex-post facto research design. Data were sourced from secondary sources such as the World Bank, Food and Agricultural Organization, the Central Bank of Nigeria Statistical Bulletin, and the National Bureau of Statistics (NBS).

Non-Linear Autoregressive distributed lagged (NARDL) model was used for estimation of data. The study found that capital market performance has no significant effect on cash reserve ratio in Nigeria. In the same way, capital market performance had no significant effect on monetary policy rate in Nigeria. There was however, a significant effect of capital market performance on cash reserve ratio in Nigeria. However, no significant effect existed between capital market performance has and real gross domestic product in Nigeria. the study revealed that capital market performance has significant effect on human development index in Nigeria, even as capital market performance has no significant effect on gross fixed capital formation in Nigeria.

The study recommended that government should stir up productivity in the economy to boost gross domestic product while keeping the cash reserve ratio high in order to tackle the spate of inflation within the economy. The apex bank should likewise, lower the monetary policy rate which is normally associated with the performance of all-share index. Also, the government should invest more in the capital market so as to improve the value of government stock (VGS) and use it to improve the human development index of Nigerians