Our paper investigates the impact of COVID-19 on stock markets across G7 countries (the US, the UK, Canada, France, Germany, Italy and Japan) and sectors (Consumer Goods, Consumer Services, Financials, Healthcare, Industrials, Materials, Oil & Gas, Technology, Telecommunications and Utilities)...

In this paper, we investigate the intraday behavior of the General index of the Athens Stock Exchange. We find evidence for a U shape pattern for both returns and volatility. Returns are positive at the opening and closing phases of a trading session, with the pattern being more pronounced in...