This study aims to examine the effect of the Covid 19 pandemic on the performance of LQ45 stocks in Indonesia. The Indonesian Stock Exchange's (IDX) monthly share price of LQ45 is taken into account in this study. Using a quantitative approach, this study compares pre-pandemic and post-pandemic Indonesian COVID 19 epidemic data and hypotheses based on these two sets of data. A causal link comparison study was used to assess the study's validity. According to the results of this study, it can be concluded that the performance of LQ45 shares in Indonesian companies before and after the Covid 19 epidemic was statistically significant. Based on the results of this study, which show that the t-count value is 4.347, with a sig value of 0.000, it is concluded that Ha is accepted and Ho is rejected. During the Covid 19 epidemic, performance of LQ45 share on Indonesia Stock Exchange fell, resulting in the financial losses of several companies. 

This article analyzes the movement of the Composite Stock Price Index (IHSG) in Indonesia during the Implementation of Restrictions on Community Activities (PPKM) in 2021. PPKM is a government regulation to deal with the Covid-19 pandemic. Before the implementation of PPKM, the government had implemented large-scale social restrictions implemented in several regions in Indonesia. The policy implemented by the government is considered to have an impact on the decline in people's purchasing power, which has just shown recovery and has an impact on several sectors of the stock market in Indonesia. It is necessary to analyze to determine the effect of implementing community activities on the joint-stock price index in 2021. This study uses an exploratory descriptive type of research. Observations were made by analyzing the composite stock price index (IHSG). Based on the results of the discussion that has been analyzed, it can be concluded that during the implementation of restrictions on community activities (PPKM) the IHSG value tends to experience a difference every month but shows a positive trend which closed at the level of 6,600.68, which was an increase of 10.4 percent compared to the 2020 closing position. which is at 5,979.07.