The article explores calendar anomalies in Asian stock markets from 2000 to 2006. By analyzing daily and monthly stock returns, the researchers found different patterns in stock markets like negative Monday returns in Indonesia, Singapore, Taiwan, and Malaysia, and a January effect in Taiwan and the Philippines. These findings can help financial managers and investors create trading strategies to manage risk and potentially earn higher profits. Further analysis using specific models could provide more insights for adjusting investment portfolios based on market reactions to positive and negative news.