Santa Claus may or may not have a rally in store for this high-flying AI stock.Nvidia (NVDA 0.56%) appears to be about to do it again. The chipmaker has delivered big gains in all but two years since 2014. Its shares are up more than 35% year-to-date, with only three and a half weeks remaining in 2025.Should you buy Nvidia stock hand over fist before the end of the year? Here's what history suggests.NASDAQ : NVDANvidiaToday's Change( -0.56 %) $-1.03Current Price$ 182.35Key Data PointsMarket Cap$4433BDay's ...