exposure to changes in the price of the underlying stock (delta), and exposure to changes in implied volatility (vega) are …-known market, size, book-to-market, momentum, and short-term reversal factors. Additional volatility, stock, and option market …

exposure to changes in the underlying stock price (delta), and exposure to changes in implied volatility (vega) are removed …-to-market, momentum, short-term reversal, volatility, or option market factors …