December is here, bringing hope that this historically strong month for stocks will close out the year on a high note. 2024 has already seen indexes setting and breaking record highs, leaving investors eager for a festive flourish to finish the year. Historically, December has earned its reputation as a strong performer, thanks in part to the “Santa Claus rally.” This phenomenon often lifts markets during the last week of December and the first few trading days of January. While the rally is not guaranteed, several factors help explain why December tends to shine.