Heavy-Tailed Returns

Analysis

Heavy-tailed returns represent a statistical phenomenon where extreme values occur with greater frequency than predicted by a normal distribution, a critical consideration within cryptocurrency markets due to their inherent volatility. This characteristic impacts risk models, as standard deviation underestimates potential losses, necessitating alternative approaches like Expected Shortfall. In options trading, the presence of heavy tails influences pricing models, particularly for out-of-the-money options, where the probability of large payoffs is significantly higher than a normal distribution suggests. Consequently, accurate valuation requires adjustments to account for these non-normal return distributions, often employing techniques like implied volatility smiles and skews.