Turkey Day has a way of increasing investors’ appetite for U.S. stocks. In fact, investors tend to gobble up stocks and push prices higher from the end of Thanksgiving week through year’s end, according to data compiled by Bespoke Investment Group. Going back to 1945, the broad Standard & Poor’s 500-stock index has posted has average gains of 1.8%, with positive returns 71% of the time in the period from Thanksgiving to year’s end