The 2019 COVID-19 pandemic led to an economic slowdown worldwide and shook the investment world. Pharmaceutical … employed for vaccine news announcements between 2 January 2020 and 4 March 2022. Stock returns and volatility were analyzed … volatility was observed for Pfizer, Moderna, and the S&P 500 index stocks immediately before positive vaccine development …

This study investigates the volatility and external shock persistence within the financial and alternative assets … experienced an increase in volatility, except Bitcoin, across all observation periods. Islamic stock and ESG indexes exhibited … high volatility before the Covid-19 outbreak. During the pandemic, all assets became more volatile. In addition, Islamic …

with the US stock market volatility during the pandemic period. Using the wavelet coherence analysis, we first find that … there is a positive relationship between the volatility and death tolls. Second, while in the short term the sizable … volatility have a negative relationship. Finally, the monetary policy and the volatility have much stronger coherency than the …