This study examines the impact of global COVID-19 cases and oil price shocks on the stock markets in the GCC. Using the Kalman filter to generate the unexpected oil price shocks, we find that, with the exception of Oman, the GCC markets responded to positive and negative oil price shocks before and during the pandemic, with impacts of higher magnitude since March 11, 2020. We also find that the spread of global COVID-19 cases had in itself no meaningful impact on the GCC stock markets.