Takeaways
- A positive expectancy for the S&P 500 is apparent in the days leading into Thanksgiving
- There is also a tendency for the S&P 500 to weaken on the Monday and Tuesday following Thanksgiving
- Whilst this data does not provide a roadmap for likely price direction, it does provide statistical comfort of a bias ahead and following Thanksgiving
Using daily data since 1987, I have looked at how the S&P 500 performs in the three days prior and beyond US Thanksgiving. As markets are closed on Thanksgiving, it means we’re looking at the three days up to the close on Thanksgiving eve, and the three following Thanksgiving when the markets are open.
S&P 500 average daily returns around Thanksgiving
T-1 is the day prior to Thanksgiving (or ‘Thanksgiving eve’, if there I such a thing), whereas T+3 is the third business day following Thanksgiving. Each bar represents one day, of the average return for each period.
S&P 500 analysis: Heading into Thanksgiving
Whilst there is a positive average return ahead of Thanksgiving (TG) on T-3 and T-1, we actually see a slight negative average return on T-2. As TG in on Thursday this year, it could suggest that Monday and Wednesday provide better odds of up days then Tuesday.
However, T-3 only has a 47.2% average positive return over the sample, whilst T-1 has the highest average return alongside a 66.7% win rate. Perhaps Wednesday may stand the best chance of an up day this year. And the fact that T-2 has a negative average return with a 64% win rate, it suggests the down days have been considerably larger than the up days over the sample. And that is why the median return is positive for T-2 and the highest for T-1.
S&P 500 analysis: After Thanksgiving
The day following TG (T+1) seems like a coin flip with a minor average positive turn and only a slight increase of up days relative to down. And as many traders take an extra day of vacation on the Friday to achieve a nice 4-day weekend, perhaps this makes sense. It is therefore interesting to note that T+2 (the following Monday) has a clear bearish bias with average return of -0.34% with a down-day rate of nearly 60%. It seems whatever optimism traders expressed heading into the long weekend is truly over when they return to their desks on the Monday.
A smoother way of looking at the data is to use a rate of change between the respective day and TG. And looking at the data this way better shows that my inking was on the right track; traders prefer to buy the S&P 500 heading into S&P 500. It also shows a desire to sell the S&P 500 thereafter. So how does this stack up against current price action?
S&P 500 daily chart:
The main issue I have with simply assuming a rally ahead of Thanksgiving next week is that we have already seen an extended run, and it is near resistance around 4540. The daily chart shows volatility has subsided over the past two days after its 10% rally into Wednesday’s high. But perhaps we’ll be treated to a pullback during the final session of this week later today. In which case, bulls could seek intraday bullish setup on Monday, Tuesday or Wednesday next week if price action respects intraday support levels.
Of course, as these stats are backwards looking and simply show average returns which smooth over the data set and ignore individual stories behind a move on a given day, this data should not be used as a roadmap. But it does at least provide some statistical comfort that the odds favour a rally into Thanksgiving and a slight selloff thereafter, assuming no large macro theme arrives to dominate sentiment.
– Written by Matt Simpson
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