Betavexity

Betavexity is a measure of how risky an investment is. It tells you how much a stock is expected to go up or down in response to changes in the overall stock market. The higher the betavexity, the more the stock will move when the market moves, and the more risky the investment is. A betavexity of 1 means that the stock should move as much as the stock market. A betavexity of 0 means that the stock should not move with the stock market at all.