There has always been competition among hedge funds, mutual funds, and other types of investors to perform better than index, meaning, creating alpha. How can you create alpha? Are there any patterns to follow? Any trends? There are many questions one may ask in order to find patterns that are creating. The purpose of this study is to see how CEO departures affect equity value in the short- medium- and long term and its comparison to indices. This study has collected data from a majority of publicly traded Nordiccompanies with a market capitalisation of over 10 billion Swedish crowns. The collected data has been collected within the last 20 years (2003-2023) with market-adjusted return, market capitalisation, volume, and CEO tenure being the prominent variables analysed.As CEOs have the operative responsibility of a company, they thereby are at the top of the company and effectively guide the company towards its goals. The changes in CEOs could thereby be of interest to investors as there is potential for larger structural changes when a new CEO is appointed. Applying this to its equity value, there is potential formispricing. Using mainly Fama’s and Malkiel’s research on the Efficient Market Hypothesis (EMH) and Random Walk as the theoretical framework there are different ways in which equity price could move. EMH states that all markets are efficient by the equity representing all available information. Random Walk instead states that equity price moves randomly and cannot be predicted in accordance with historical movements. The empirical results showed that there were no statistically significant findings in our employed regression analysis. However, on average, the descriptive statistics show thatthe market-adjusted return for a company with a CEO departure is negative compared to its comparable index. The intraday MAR highly deviate from 1 day until 1 quarter and thereafter the deviation becomes less. The conclusion could be drawn that EMH might be contradicted in the short term but holds long term. It is also difficult to deny the theory of random walks in equities.