3 Reasons Why September Is A Horrible Month

Published in Investing Strategy on 2 September 2009

September is historically the worst month for the market. Is it time to sell everything, before it's too late?

Happy September.

The FTSE 100 ushered in the first day of autumn with an 89 point or 1.8% fall to 4,820. Leading the way south were banks like Lloyds Banking Group (LSE: LLOY), HSBC (LSE; HSBA) and Royal Bank of Scotland (LSE: RBS), down 4.8%, 4.2% and 3.7% respectively, and resources stocks like Xstrata (LSE: XTA) and Antofagasta (LSE: ANTO), each off a little over 4%.

When it comes to the stock market, the month of September has a bad reputation. In the US, September is the worst month for shares, with the S&P 500 down 1.3% in that month since 1928. It's a similar story here in the UK.

Oh September…Why We Hate You

It was in September last year that Lehman Brothers collapsed, sending world stock markets into a vicious downward spiral. The FTSE 100 lost 13% in September 2008. In 2001, in the wake of the terrorist attacks on New York, the FTSE 100 finished September down over 8%.

So what's up with September? Obviously it was somewhat random the Lehman Brothers collapse and the US terrorist attacks both happened in September. But apparently there is some substance behind this month's historically poor performance.

Here are 3 potential theories...

1. Summer is over and now is the time to get serious about investing. Investors come back from holidays, take a critical look at the data and the numbers, and decide to take some profits off the table.

2. Investors are in a bad mood, knowing summer is over, the holiday season is over, the days are getting shorter, the tubes and trains are packed again, and it's all downhill until the silly season starts in mid December.

3. It's a self-fulfilling prophecy. Because September has historically been a bad month for shares, investors automatically assume it's going to be a bad month every year, and therefore are more likely to sell than to buy.

The Good Old Fashioned Investing Strategy

As for me, this is not a time to sell shares just because it's September. I'm not one for history repeating, otherwise I'd be bunkered down with a good supply of baked beans and bottled water waiting for the next terrorist attack. Or I'd be selling my whole portfolio at the end of August every year in case the market were to plunge 10% in September.

Instead, I tend to follow good old fashioned investing strategies that have served me well over the years, especially in the months of February, August, November, April, January, November, May, July, March, December, June, October and even September.

In a nutshell, my strategy is…

1. Buy good companies when they are trading at cheap prices.

2. Sell companies when they approach fair value.

3. Wash, rinse and repeat.

Forget The Heady Days Of 2007

It should be no secret to regular readers of my gumf that I'm quite bearish about the valuations of some companies. My caution stems from the economy. Although it is in the process of stabilising, and even recovering, I believe the recovery will be a long and drawn out process, not some V-shaped bounce back to the heady days of early 2007.

Simply put, if you're in agreement with central bankers across the world, including the Bank of England's Mervyn King and US Fed Chief Ben Bernanke, that this is the biggest recession since The Great Depression, I can't possibly see how we can bounce out of it in the relative blink of an eye.

After all, even now, with the recession declared over in the US and on its last legs here in the UK, if all was rosy again, why is the base rate still at 0.5% here and virtually zero in the US, and set to stay that way for some time yet?

Learning A Harsh Lesson

Consumers are in a process of voluntary and forced de-leveraging. People are paying off their debt, probably because they have been taught a harsh lesson in the evils of excessive borrowing, and banks are still reluctant to lend, except for the most credit-worthy of consumers.

As if to prove the point, Bank Of England figures released yesterday showed the amount of consumer debt in the economy fell in July for the first time since they started producing this data in 1993. Whilst it's great news that consumers and businesses are paying down their debt, it's not great news for the economy.

The Good News About A Falling Market

Still, for stock market investors, it's not a time for panic. September has not got off to a good start. But let's put this in some perspective. The market has risen around 40% in the last 6 months. It is due some level of pull-back and/or consolidation. It's normal.

Many people may have quickly forgotten what a down market looks like. September may remind them. Such reminders are healthy, as they can put a stop to any threat of irrational exuberance, and they can also give you an opportunity to pick up some quality companies trading at cheap prices. I hope you're prepared.

More on the economy and the markets:

> If you're in the market for buying and selling shares, consider opening an online broker account with The Motley Fool's Share Dealing Service. You can buy and sell shares in real time for a flat rate of just £10. Click here to find out how you can open an account for free today. There is no obligation to trade.

> Bruce Jackson does not have an interest in any of the companies mentioned in this article.

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Comments

The opinions expressed here are those of the individual writers and are not representative of The Motley Fool. If you spot any comments that are unsuitable hit the flag to alert our moderators.

nikhow 02 Sep 2009 , 11:52am

'September is historically the worst month for the market.'


As a newbie, I wish someone had told me earlier before I invested my 40 grand !!!!!!

lotontech 02 Sep 2009 , 12:06pm

As Mark Twain said...

"OCTOBER: This is one of the peculiarly dangerous months to speculate in stocks. The others are July, January, September, April, November, May, March, June, December, August, and February."

And of course there is also...

"Sell in May and go away, stay away till St Leger's Day"

St Leger's day is mid-September.

pswilletts 02 Sep 2009 , 12:41pm

I love September...Spread Betting...made a nice 70% in 2 days

dugthebug 02 Sep 2009 , 1:56pm

September is not always a bad month for shares, at least according to the experts. From the financial pages of teletext, ch4 page p500+, I read that, historically, if shares are up between september 2nd and september 8th, there is a 50:50 chance the stock market will rise. If it is down however, the news is likely to be all bad. Personally, I'm expecting a good year this year on the stock market, theres been so much doom and gloom in the last 18 months, for me the only way is up. Perhaps i'm just an eternal optimist. Only time will tell.

lotontech 02 Sep 2009 , 5:10pm

To pswilletts:

I wonder, did you make that money long or short?

antwebb 02 Sep 2009 , 9:36pm

You said November twice. I had to count that quite a few times before I found it.
:)

mahdave 02 Sep 2009 , 11:38pm

I think I will follow your views that any month is good for investing in quality shares. If clueless people are selling, the best policy is to sell those shares where you are not certain about their future -don't get crushed in the way of the "herd".
Time to keep some of your "powder dry" and invest the cash after the superstitious have sold out. Come October, the factories will have to manufacture and shops to stock up for the X'mas.
According to my own particular type of "superstitious" theory, 2009 has two peaks - February and November; and a trough in May. So if you have guts, stay strong and buy in Sept./Oct. & sell "forthy ones" in Nov/early Dec.2009.

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