Intraday analyses on weather-induced sentiment and stock market behavior

Abstract

We examine the intraday relationship between weather conditions and investor sentiment in the Korean equity market. By uncovering the intermediary role of weather-induced sentiment in affecting market variables, we suggest a potential link between weather conditions, sentiment, and market dynamics. High temperatures, humidity, and cloud coverage negatively affect investors’ moods, while strong winds and long sunshine durations have a positive impact. Although only cloud coverage marginally impacts stock returns, weather factors significantly affect market turnover, volatility, and illiquidity, especially when they alter sentiment dynamics.