Is the January stock market effect real? | Hargreaves Lansdown (2024)

Investing insights

It’s long been a theory that stock markets rise in the first few weeks of the year, but is it true and what does the data tell us?

Important information - This article isn’t personal advice. If you’re not sure whether an investment is right for you please seek advice. If you choose to invest the value of your investment will rise and fall, so you could get back less than you put in.

The January effect is based on the idea that January tends to be a good month forstock markets. It goes back as far as the early 1940s to investment banker Sidney Wachtel. He was the first person to suggest that American stock prices go up more in the opening weeks of the year than in any other month.

Later research looked to confirm this seasonal investment theory and said that this especially affected smaller-cap companies.

A lot of investors have had a great start to 2024 with global stock markets soaring.

US markets hit an all-time high after a strong month for US-listed companies. Netflix had impressive quarterly results and Microsoft became the world’s most valuable company with amarket capitalisationof more than $3tn.

$3tn

Microsoft's market capitalisation

As always though, remember, past performance isn’t a guide to the future.

So, is this proof that markets rise sharply in the first month of the year or is it a myth that doesn’t stand up to scrutiny?

Is there evidence of a January effect?

Schroders looked at 130 years of data and found that January does tend to be a good month for investors.

Its research, going up to the end of January 2020 – just a few weeks before the first COVID-19 lockdowns – showed the US stock market rising 85 times out of 130.

Schroders also found figures were higher in other markets. January was a positive month 78% of the time in Australia, 74% in Japan, and 71% in the UK.

Of course, you can read pretty much anything into a set of data – and there are plenty of Januarys where stock markets have struggled. For example, some UK markets have gone through a lacklustre start to 2024 as stickyinflationhas made it less likely that the Bank of England will cutinterest ratesearlier.

This article isn’t personal advice. If you’re not sure whether a course of action is right for you, ask forfinancial advice.

Why are markets better in January?

There are a few theories as to why markets are often stronger in January.

One of the most common is investors selling loss-making shares to offset gains elsewhere and lower capital gains tax liabilities. They then buy them back in January, pushing up the prices.

Other ideas include people putting Christmas bonuses to use in the stock market.

Optimistic investors starting the new year with a rush of enthusiasm is another potential reason. It could also be possible that the January effect has become a self-fulfilling prophecy.

But the big question is how should investors react? What will happen to stocks heading into February? Are there certain stocks and sectors that should be bought each December?

The reality is that such short-term strategies are rarely a good idea. Investing should be for the long term, in assets that are likely to deliver growth over longer periods (at least five years).

The best course of action is focusing on your investment objectives and base buying decisions on your attitude to risk and the fundamental qualities of the assets chosen.

Rob Griffin is the Managing Director of Senlac Communications. Hargreaves Lansdown may not share the views of the author.

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Article history

Published:

7th February 2024

Is the January stock market effect real? | Hargreaves Lansdown (2024)

FAQs

Does the January effect still exist? ›

The effect was most pronounced among small-company stocks from 1940 to the mid-1970s. But it seemed to shrink through around 2000 and hasn't been as reliable since. Today, many investors are skeptical of a January effect occurring in 2024 because of a run-up in stocks in the last two months of 2023.

Does stock market usually dip in January? ›

Summary. The January Effect is a tendency for increases in stock prices during the beginning of the year, particularly in the month of January. The cause behind the January Effect is attributed to tax-loss harvesting, consumer sentiment, year-end bonuses, raising year-end report performances, and more.

Is January the worst month for the stock market? ›

Granted, the average returns for the S&P 500 during June and September have been lower than those in January. Still, it's indisputable that January has been one of the worst months for the S&P 500 over the last 20 years.

Why is Hargreaves Lansdown being shorted? ›

If the share price falls, short sellers pocket the difference when they return the shares to their original owner. The increased shorts against Hargreaves Lansdown suggest that investors believe shares in the wealth manager will further decline.

What month is historically the best month for stocks? ›

According to Reuters, since 1945, April and December are tied as the best-performing months of the year for stocks, with an average return of 1.6%. (September is notoriously the worst, with an average loss of -0.6%.) During recessions, April's positive performances can be even more pronounced.

What is the January trifecta in the stock market? ›

The stock market could see supercharged gains in 2024 if the "January Trifecta" materializes. The indicator tracks the performance of the Santa Claus rally, the first five trading days of January, and the month of January.

How accurate is the January barometer? ›

Proponents of this view will cite data showing that the January Barometer has registered only 11 errors between 1950 and 2021, giving the indicator an accuracy ratio of 84.5%. 1 However, this phenomenon may be largely illusory.

What is the amazing January effect? ›

The January effect is the name given to the belief in a seasonal increase in stock prices in the first month of each year. People have generally attributed a supposed rally each January to the rise in buying that follows the price drop that typically happens each December.

Is it better to sell stocks in December or January? ›

According to this hypothesis, investors sell off underperforming stocks in December to lock in a capital loss for the year, thereby reducing their tax bill, which causes a temporary dip in prices. In January, prices recover when buying picks up again.

What is the 10 am rule in stocks? ›

Some traders follow something called the "10 a.m. rule." The stock market opens for trading at 9:30 a.m., and the time between 9:30 a.m. and 10 a.m. often has significant trading volume. Traders that follow the 10 a.m. rule think a stock's price trajectory is relatively set for the day by the end of that half-hour.

What are the two worst months for stocks? ›

NYSE Composite Seasonal Patterns
  • Best Months: April, July, October, November, and December.
  • Worst Months: January, February, June, August, September.

Why is January a bad month for stocks? ›

The most common theory explaining this phenomenon is that individual investors, who are income tax-sensitive and who disproportionately hold small stocks, sell stocks for tax reasons at year end (such as to claim a capital loss) and reinvest after the first of the year.

Can I trust Hargreaves Lansdown? ›

Ranked the UK's no 1 investment platform on Newsweek's most Trustworthy Global Companies List 2023. Access to all the main pension income options - You have the freedom to choose a flexible or secure income at retirement.

How stable is Hargreaves Lansdown? ›

The founders and staff own approximately 26% of the equity and this means that they have a very significant interest in protecting the company and can take a long-term view. The business is managed conservatively, with a long-serving employee base.

What happens to my shares if Hargreaves Lansdown goes bust? ›

Stocks held with Hargreaves Lansdown come with a guarantee of full liability in case of any default by the nominee company. Hargreaves Lansdown also maintains ample capital to cover administration costs in the unlikely event of cessation of trading, offering investors further protection.

What is the January effect in the US? ›

The January effect is a hypothesis that there is a seasonal anomaly in the financial market where securities' prices increase in the month of January more than in any other month.

Why does January effect exist? ›

The January effect is the supposed seasonal tendency for stocks to rise in the first month of the year. The January effect is said to occur when investors sell losing stocks in December for tax-loss harvesting and repurchase them after the New Year.

What is the January effect on the calendar? ›

The January Effect is a calendar anomaly sometimes observed in the market where stock prices, especially those of small-cap companies, tend to increase slightly more (on average) during the month of January than in any other month of the year.

What is the December January effect? ›

With tax-loss selling, the idea is that U.S. investors sell a lot of losing stocks in December to generate losses they can use to reduce their taxable income, and therefore lower their tax bills. That generates abnormal downward pressure on the market in December, subsiding in January, giving stocks a bit of a bounce.

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