This study was aimed at examining the impact of entrepreneurial proclivity on business performance of SMEs in West Sumatera, Indonesia. The moderating variables of this study were role of market and technology turbulence. Data was collected from survey of selected managers or owners of SMEs and later analysed using Moderated Regression Analysis (MRA). Findings show dimensions of entrepreneurial proclivity have significant effects on business performance. There is no significant moderating effect of the role market and technology turbulence on entrepreneurial proclivity of SMEs. Therefore, this study contributes to literature by highlighting the relationship between entrepreneurial proclivity and business performance. Managerial implications are discussed as well.