Understanding stock market correlations is essential for gauging financial integration, identifying risk diversification potential, and supporting investment management especially during economic downturns in a globally connected landscape. This paper presents a comprehensive correlation analysis among India (S&P BSE SENSEX) and ten prominent Asia-Pacific countries— China (SSE Composite), Israel (TA-125), Japan (Nikkei), Hong Kong (Hang Seng), Taiwan (TSEC), Indonesia (Jakarta Composite), South Korea (KOSPI), Australia (S&P/ASX 00), Singapore (FTSE), and Russia (MOEX Russia)—across two pivotal phases: the global financial crisis period, spanning from August 7, 2007, to April 16, 2009 and post-financial crisis period, from April 20, 2009, to December 30, 2019. Using a combination of descriptive statistics and correlation analysis on the calculated returns from daily adjusted market closing series of these indices, the study assesses the degree of association among the indices of India and the ten economies, with normality diagnostics guiding the selection of the appropriate correlation methodology. The normality tests indicate that none of the return series follow normal distribution and validate the use of the non-parametric Spearman Rank Correlation method. Results reveal persistently weak correlations among the S&P BSE SENSEX and other indices, suggesting scope for minimal co-movement across the indices in both periods. Although correlation among returns from Indian and ten Asia-Pacific indices grew from the crisis to the post-crisis period, no strong association emerged, showing only modest inter-market linkages in both intervals.
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