A Comparative Statistical Analysis of Bse Sensex and Nasdaq Index" (With Reference to India and United States)

The study is based on secondary data. The main and primary objective of this study is to determine and compares BSE Sensex and NASDAQ Index performance during the period between February 2022 and September 2025. Monthly historical closing data of the BSE Sensex and NASDAQ Index were collected from respective official websites of BSE and NASDAQ. Monthly return of BSE and NASDAQ is calculated by using Mathematical formula i.e. R=(P1 – PO)/PO where R = Monthly Return, PO = Previous Month’s Closing Price, P1=Current Month’s Closing Price. Computed Descriptive statistics, including mean, standard deviation, Skewness and kurtosis to understand the distribution of returns, calculate the Pearson correlation coefficient to measure the linear relationship between BSE Sensex and NASDAQ Returns, a paired t-test were used to compare the mean returns of BSE Sensex and NASDAQ Returns, The Normality assumption was checked based on the Shapiro-Wilk Test, For the analysis and visualization tools like Microsoft Excel and SPSS were used. Concluded that The Nasdaq index returns have significant positive impact on BSE Sensex returns during the period between February 2022 and September 2025. The strong correlation and high R square value indicate that the NASDAQ index is a good predictor of BSE sensex returns, This makes sense, given the global nature of markets on Indian markets.