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Thanksgiving Turmoil: Holiday Week’s Market Mayhem or Magic

AJ Monte CMT's Photo
by AJ Monte CMT
Monday, Nov 24, 2025 - 13:20

As the aroma of turkey and pumpkin pie fills the air, Wall Street braces for a truncated trading week that could deliver feasts of gains or famines of volatility. The shortened Thanksgiving schedule, featuring a full market closure on Thursday and an early 1:00 p.m. ET close on Black Friday, often transforms the U.S. stock markets into a high-stakes holiday gamble. Drawing from historical trends and seasonal quirks, here is a deep dive into how this festive interruption might rattle or rally indices like the S&P 500, Nasdaq, and Dow Jones this week.

Thinner Crowds, Wilder Swings: The Liquidity Crunch

With institutional heavyweights and traders opting for family time over frantic trades, expect a significant dip in activity. Average daily trading volumes typically plummet 25-30% below normal levels. This scarcity of liquidity can inflate bid-ask spreads, turning minor news blips or order imbalances into dramatic price gyrations. Sectors like tech, consumer goods, and small caps may feel the brunt, amplifying volatility in an already jittery market. This could dovetail with recent patterns of concentrated volatility, where a handful of pivotal days have dictated yearly flows. Traders beware: in a low-volume arena, even whispers can echo like thunder.

Holiday Cheer or Market Beer: The Bullish Legacy

Thanksgiving week is not all doom and gloom. Historically, it is a beacon of optimism, buoyed by the “holiday effect’ where pre-festive positivity curbs selling and fosters buying sprees. Over the last half-century, the S&P 500 has notched an average +.54% gain during this period, closing in the green about 68% of the time. Zooming in on data from 1950-2024, the days flanking the holiday shine with elevated returns and muted volatility, averaging above the market’s daily .036%. Yet, watch for post-holiday hangover: the second day after (often Tuesday) frequently flips to weakness. In my last weekly market report, I forecasted a rally up to the 20-day simple moving averages for the broad-based markets with a downturn to follow in the week after the Thanksgiving holiday. Many experts believe this upbeat streak will persist, but I would disagree based on weaknesses showing up in the technical signals, especially in the S&P 500, with a possible head & shoulders topping pattern.

A screenshot of a graph

AI-generated content may be incorrect.

Data Deluge in a Desert: Volatility from Economic Surprises

Even with fewer trading hours, the week packs a punch with economic releases; think housing stats, jobless claims, PMIs, or even delayed reports like September employment amid government shutdown drama. In a volume-starved setup, these can trigger wild swings. With the VIX hovering around 23.50 and risk-averse shifts in play, as well as a shortened session on Black Friday, these might contribute to a chaotic trading week. The bottom line is the mix of sparse liquidity and surprise catalysts can brew exaggerated outcomes. History offers no ironclad promises, and recent decades show these effects fading in strength. Savvy investors and traders might play it safe, cherry-picking positions and avoiding overcommitment in this holiday haze. Whether it is market magic or mayhem, one thing is certain: this shortened week will keep traders thankful for any edge they can find.

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