Shares of MGM Resorts International moved higher alongside the wider equity market in the first three trading days following the December 17 low, mirroring a pattern that veteran market observers often describe as a classic mid-December bottom. The advance places the casino and hospitality company’s stock within a broader discussion about well-known calendar effects that historically influence U.S. equities at year-end.
One of the best-documented patterns is the Santa Claus Rally (SCR), a seven-session stretch covering the final five trading days of December and the first two sessions of January. According to data dating back to 1950, the S&P 500 has posted gains during this window 77 percent of the time, delivering an average increase of 1.26 percent. The current SCR period is scheduled to begin on Wednesday, making the recent uptick in prices a precursor to what many investors consider a seasonally favorable phase.
The mid-December low itself has long been labeled “The Only Free Lunch on Wall Street,” a coinage attributed to Yale Hirsch, founder of the Stock Trader’s Almanac. Hirsch’s work cataloged a series of market axioms that tend to surface near year-end, including the January Barometer, the First Five Days rule, and the familiar rhyme, “If Santa Claus should fail to call, bears may come to Broad and Wall.” All of these sayings highlight statistical tendencies rather than certainties, but they remain a point of reference for traders looking to position portfolios around the turn of the calendar.



