耐心点，先看清定义：
A Santa Claus rally is a rise in stock prices in the month of December,
generally seen over the final week of trading prior to the new year. It is a
type of calendar effect. There is no generally accepted explanation for the
phenomenon.
不过历史上有很多年份是没有的哈，比如前两年，既没拉力，也没拉稀。牛牛们看着办
，呵呵
