Dispersion Trade
Dispersion Trade A dispersion trade is an options strategy that takes opposite positions in the volatility of a stock index and the volatility of its individual stocks. The goal is to profit from a gap between how much the index moves and how much its components move. The basic idea: Index volatility is not just about how volatile each stock is. It is also heavily influenced by correlation , which is how much the stocks move together. When correlations rise, the index tends to swing more as a group. When correlations fall, individual stocks can move a lot while the index looks calmer because gains and losses offset. Real-world example: A trader might buy options (volatility) on several large S&P 500 stocks and sell options on the S&P 500 index. This position can work when single stocks move a lot, but they do not all move in the same direction at the same time. Two common ways to structure it: 1) The Straddle Approach (the “unit” t...