Purpose – The purpose of this thesis is to assess if natural disasters impact the volatility of 19 property-liability insurers in the United States of America (USA) and 3 stock indices over a 10-year period using GARCH (1,1), IGARCH (1,1), EGARCH (1,1) and GJR-GARCH (1,1). Additionally, we implement the Value at Risk (VaR) and Extreme Value Theory (EVT) method to generate the worst loss over a target horizon that will not be exceeded with a given level of confidence. In this regard, this thesis will be a pioneer in examining the performance of capital markets in a context of unusually high ...