Analysis of the Influence of Exchange Rates, Interest Rates, and Inflation on Stock Price Index (Empirical Study on the LQ45 Index at the IDX 2019-2023)

This study aims to determine and analyze the effect of exchange rates, interest rates, and inflation on the stock price index of empirical studies on the LQ45 Index. The research method used is quantitative using secondary data. The sample in this study was 60 samples from time series data in the period 2019 to 2023. Data analysis techniques used in this study include classical assumption tests, multiple linear regression, t-tests, F-tests, and coefficients of determination. Based on multiple linear analysis, it was found that Y = 1597.532 - 0.058X1 + 12.362X2 + 45.009X3 + e. From the results of the t-test conducted on the exchange rate and inflation variables, they partially have a significant effect on the LQ45 stock price index, while the interest rate variable partially does not have a significant effect on the LQ45 stock price index in 2019 2023. From the results of the F test conducted on the exchangerate, interest rate and inflation variables together or simultaneously have a significant effect on the LQ45 stock price index in 2019-2023. Based on the results of the determination coefficient, the exchange rate, interest rate, and inflation have an effect of 37.8%, and the remaining 62.2% is explained by other variables not included in this study, such as gross domestic product, economic growth, and company financial performance.