This thesis is written during what we hope is the end of the pandemic of covid-19. With the increasing rate of death across the globe and the increase demand on healthcare and pharmaceutical accomplishments. The virus is causing the society to handle a crisis that is affecting the economy, with an increase of unemployment, decrease in consumption and unstable future. The stock market is one of the interesting topics of the outbreak of corona causing the market to change for all the investors. This thesis attempt is to analyse how the event of coronavirus has affected the stock market with the narrow view of the healthcare and pharmaceutical sector- HPS on the Swedish stock market true the event analysis with the timeline from 2014-01-01 to 2022-04-01 with the calculations and financial index model the result will be produced. The result shows that the event of covid-19 had a positive effect onthe HPS sector of the stock market in Sweden. Although some of the investigated stocks was given an negative result, the sector overperformed during the period.