Historically, most stocks start to trend higher into the holiday season, starting in mid-to-late November, regardless of what is happening. Even during the financial crisis of 2008, Garner found that the S&P 500 managed to stop the selling during the holidays and achieved a 200 point rally from late November into early January.
So if it could work back then, why would this year be any different?
Garner took a look at the seasonal chart of the S&P 500, and found that there tends to be a big dip in October, followed by a strong bullish move into the New Year. This pattern has repeated itself year in and year out, to the point where Garner thinks it would be downright silly to try to buck this powerful seasonal trend.
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More importantly, Garner found that the Wednesday before Thanksgiving and the Friday afterwards — Black Friday — tend to produce fantastic gains in the market. Of the past 62 years, there were only 13 years that those two sessions produced a combined loss.
As for the holidays, Garner added that if investors bought the S&P 500 on Dec. 17 and held it through Jan. 3; they would have made money for the last 14 of 15 years.
Garner believes that the S&P will continue to climb until it tests its early November highs around 2,109, which is very close to where it closed on Tuesday. If it can break above 2,109, Garner expects it to roar up to 2,150 — or even 2,180.
If Garner turns out to be wrong, she thinks the S&P could pull back down to its floor of support around 2,040 or even 2,000 if the Fed meeting throws a wrench into everything.
Ultimately the charts suggested to Garner that the S&P 500 could be ready to roar going into the holiday season, which aligns nicely with the historical data.
"Hey, I'll take it, and a happy Thanksgiving to all," Cramer said.