December Seasonality Key Points
- Historically, December has been a strong month for US stocks, with the broad S&P 500 index sporting an average (price-only) return of +1.3% over the last 35 years.
- December has historically been a month where stock market volatility edges higher, with the VIX index rising by an average of 1.2% since 1990.
- After a breakout from consolidation to start the month, the technical, fundamental and seasonal biases all point to the potential for more upside.
The beginning of a new month marks a good opportunity to review the seasonal patterns that have influenced the markets since 1990.
As always, these seasonal tendencies are just historical averages, and any individual month or year may vary from the historic average, so it’s important to complement these seasonal leans with alternative forms of analysis to create a long-term successful trading strategy. In other words, past performance is not necessarily indicative of future results.
S&P 500 Seasonality – S&P 500 (Price-Only) Chart
Source: TradingView, StoneX. Please note that past performance is not necessarily indicative of future results.
Historically, December has been a strong month for US stocks, with the broad S&P 500 index sporting an average (price-only) return of +1.3% over the last 35 years. After a mid-month swoon, November finished essentially flat, keeping the post-Liberation Day uptrend intact heading into December. With little on the earnings front this month, the focus will be on (delayed) macroeconomic data and the FOMC meeting on December 10, where a 25bps interest rate cut is widely expected. One other factor to monitor is the potential for a “Santa Claus Rally,” a topic I recently discussed on the Trading Global Macro podcast with John Kicklighter.
Nasdaq 100 Seasonality – NDX (Price-Only) Chart

Source: TradingView, StoneX. Please note that past performance is not necessarily indicative of future results.
Looking at the above chart, the Nasdaq 100 has historically seen solid performance in December, to the tune of an average gain of +1.5% since 1990. Like the S&P 500, the Nasdaq 100 saw an intra-month dip in November before rallying to close near unchanged levels. While AI standard bearer Nvidia pulled back sharply last month, other Magnificent 7 stocks like Apple and Google/Alphabet have picked up the slack in a leadership rotation within the same AI theme.
Volatility Index Seasonality – VIX Chart

Source: TradingView, StoneX. Please note that past performance is not necessarily indicative of future results.
December has historically been a month where stock market volatility edges higher, with the VIX index rising by an average of +1.2% since 1990. Similar to October, the VIX spiked to nearly 30 midway through November but quickly fell back toward its recent average in the mid-teens by the start of December. Looking ahead, the potential for a geopolitical-related spike in volatility remains ever-present, but markets have shown resilience in driving volatility back lower on any near-term surges, and until that dynamic changes, the VIX may remain at a generally low level.
Gold Seasonality – XAU/USD Chart

Source: TradingView, StoneX. Please note that past performance is not necessarily indicative of future results.
Turning our attention to commodities, December has historically been a solid month for gold performance, with an average gain of +0.9% going back to 1990. Gold broke out of a symmetrical triangle consolidation pattern to start December, providing clear alignment between the technical, fundamental (central bank buying, “debasement” theme), and seasonal biases heading into the end of the year.
WTI Crude Oil Seasonality – WTI Chart

Source: TradingView, StoneX. Please note that past performance is not necessarily indicative of future results.
Last but not least, WTI Crude Oil has historically seen neutral performance in December, with an average gain of +0.1% over the last 35 years. Following its seasonal tendency, WTI fell meaningfully in November, leaving it just above the multi-year lows near the $57 handle. With oversupply expected throughout 2026, expect that level to be retested and potentially broken this month unless we see some substantial changes in the long-term supply/demand dynamics.
As always, we want to close this article by reminding readers that seasonal tendencies are not gospel so it’s important to complement this analysis with an examination of the current fundamental and technical backdrops for the major markets and the global economy.
-- Written by Matt Weller, Global Head of Research
Check out Matt’s Daily Market Update videos on YouTube and be sure to follow Matt on Twitter: @MWellerFX
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