US stock markets are nearing the end of a volatile year, marked by trade tensions, geopolitical concerns, and AI stock surges. Despite fluctuations, the S&P 500 is poised for double-digit gains. The upcoming week, with a shortened trading schedule due to New Year's Day, anticipates low volume and a light economic calendar. Key releases include pending home sales, S&P Case-Shiller home price index data, and weekly jobless claims, alongside the Federal Reserve's December meeting minutes.