This study examines the association between governance quality at country level and stock market performance. Specifically, the study investigates the influence of control of corruption, government effectiveness, political stability and absence of violence, rule of law, regulatory quality, and voice and accountability on all-share index of the stock markets of the six Gulf Cooperation Council (GCC) countries. This study is anchored on two theories – the Efficient Market Hypothesis (EMH) and Institutional Theory. The study employs panel data spanning from 2006 to 2017. The findings show that political stability and absence of violence and rule of law exhibit a significant positive impact on stock market performance, while regulatory quality and voice and accountability have a significant, but negative relationship with stock market performance. The results imply that quality of governance in terms of rule of law and political stability devoid of violence have strong impact on stock market returns. Similarly, improved stock market returns are largely dependent on the efficiency of the institutional environment of market as investors are always wary of the inherent risks associated with the uncertainty of the market. This study has crucial policy implications for the government of the GCC countries and stock market participants.

Abstract
1. Introduction
2. Literature Review
3. Theoretical Framework
4. Methodology
    4.1. Data Sources
    4.2. Model Specification
5. Results and Discussion
    5.1. Descriptive Statistics
6. Conclusion and Policy Implications
References

• Kennedy Prince MODUGU(Higher Colleges of Technology (HCT) Business School, Ras Al Khaimah Campus, United Arab Emirates) Corresponding Author
• Juan DEMPERE(HCT Business School, Ras Al Khaimah Campus, United Arab Emirates)