Stocks have never had a negative “Santa Claus rally” period for three years in a row. - Agence France-Presse/Getty Images U.S. stocks have never seen three negative “Santa Claus rally” periods in a row. So after two straight misses, history says the odds favor a comeback this year. The historically strong Santa rally period, which includes the final five trading sessions of each year and the first two of the following year, officially kicked off on Wednesday. So far, stocks are doing OK: Despite some mild ...