Implied volatility (IV) is how much of an “expected move” is implied in the current options price. Add up the price of the ATM call and ATM put, and this is how much of a move the market has priced in. Naturally, after the earnings report is released there will be a much smaller expectation of movement over the remainder of the week, so the expected move will go down no matter which way the stock goes. This is another way of saying IV is going down, that is, IV crush.












