The January Effect was first noticed by investment banker Sidney Wachtel in 1942 and the theory proposes that a pattern existed in the price of stocks in the last few trading days of December and the first few weeks of January. During this period, particularly starting in January, the theory is that stocks – especially smaller cap stocks – tended to rise.
Studies Confirmed - Sort Of
One study of historical data from 1904 through 1974 discovered that the average return during January was five times larger than the average return for other months. Another study showed that small cap stocks (as represented by the Russell 2000) outperformed large cap stocks (as represented by the Russell 1000) by 0.8% in January, but lagged behind large caps for the rest of the year.
Starting with the year 2000, however, the results have been mixed: in the 21 Januarys since 2000, almost half the time the market lost ground during the month of January.
Reasons for the January Effect
One theory behind the historical January Effect is a consequence of tax-loss selling, in which investors sell stocks that lost money at the end of December, in order to take losses as tax deductions. Because so many of these stocks that lost value were sold in late December, they were – in theory – available at a discount in early January. Another theory of the January Effect was the payment of year-end employee bonuses, which employees then dutifully invested in the stock market, making the market more active and causing prices to rise. That one sounds suspect.
January Effect Becomes Less Effective
In recent years, the January Effect has become much less pronounced – to the point of not really existing. The reason is pretty straightforward: once everyone knew about it, the “smart” investors started buying in December instead of waiting for January. In other words, the markets adjusted.
In addition, since so many investors use tax-sheltered retirement plans, like IRAs and 401(k) plans, there is no special reason to sell a stock for the purpose of deducting losses.
The Santa Rally
Back in 1972, Yale Hirsch of the Stock Trader's Almanac proposed the existence of the Santa Rally - and it's been a constant source of eggnog-fueled debate for decades.
The Santa Rally refers to the general tendency of the U.S. equity markets to post gains in trading days between Christmas and the first two days after New Year’s. The Stock Trader’s Almanac found that since 1950, the average movement in the S&P 500 Index during this period of seven trading days has been a gain of approximately 1.4%.
The December Effect
Since 1950, we have had a lot of Decembers and Januarys. Consider this:
- 53 of those Decembers brought positive gains for investors while 18 produced negative returns – with an average return of 1.53%.
- We have seen 42 positive Januarys and 29 negative ones – with an average return of 0.80%.
In other words, December has historically been a better month when compared to January. Interesting.
Monkeys Throwing Darts?
If you incorporate the January Effect, or the Santa Rally or the December Effect into your investment theory, then you may also want to make a trip to the zoo and visit the monkey cages.
Because in 1973, Princeton University Professor Burton Malkiel claimed in his best-selling book, A Random Walk Down Wall Street, that “a blindfolded monkey throwing darts at a newspaper's financial pages could select a portfolio that would do just as well as one carefully selected by experts.” And guess what?
According to a 2013 publication from Research Affiliates, with 100 monkeys throwing darts at the stock pages in a newspaper, the average monkey outperformed the index by an average of 1.7% per year since 1964.
Advice from a Financial Advisor
Having a monkey throwing darts might work just as well as using December or January data to predict the following year’s market performance. But a bad day, bad week, or bad month simply do not tell us much about how the market will perform over the course of the next year. So many different economic, political, weather, and other factors will pop up at some point during the year. Current concerns about inflation, interest rates, tax reform, the price of oil and currencies will be replaced by other concerns, and new economic news will gain prominence.
The market results for 2021 matter. Investors should not ignore poor or great market performance for individual stocks or market segments. And investors should learn the reasons behind poor and great market performances.
But when it comes to predicting how markets will perform for the next year, however, results in December or January appear to be no more important than results at any other time.
And as always, past performance is no guarantee of future results.
With help from our financial advisor, Dallas Lee Whittaker, you can manage your finances and achieve your goals.
Dallas Lee Whittaker CMFC, CLU
Senior Vice President
Dallas has over 20 years of experience in all areas of wealth management and financial services. He is passionate about adding value to the lives of his clients through education and addressing their financial goals in a collaborative manner. With a deep knowledge of insurance which is an added benefit when doing financial planning, Dallas is an asset to our clients and the Marine Bank Wealth Management team.
Dallas currently holds a Chartered Mutual Fund Counselor (CMFC) designation awarded through the College for Financial Planning and a Chartered Life Underwriter (CLU) designation through the American College. As Senior Vice President of the Marine Bank Wealth Management Department, Dallas focuses on comprehensive financial planning to help individuals and businesses achieve peace of mind in their financial lives with an emphasis on retirement strategies, legacy planning, and generational wealth management.
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