Are You A Lump Or A Drip?

Published in Investing Strategy on 15 September 2009

With shares rising strongly, is it best to lump it all in or drip it in slowly?

As we all know only too painfully, the banking crisis and subsequent recession caused investors to flee the stock market in droves, driving the index of the UK's 100 biggest companies, the FTSE 100, down as low as 3,500 in March this year -- a level that, 18 months ago, most of us would have found unbelievable. Many invested the money they took from the market in shiny things instead, helping to push the price of gold to the $1,000 an ounce mark.

The FTSE has since rebounded, and the press has made much of its breaking the "psychologically important" 5,000 level (which is nonsense really, and is simply a reflection of our having 10 fingers rather than signifying anything important -- if we were binary creatures, like computers, they'd no doubt be waiting with baited breath to announce that the "psychologically important" 5,120 resistance level had been broken).

But even at 5,000, the FTSE-100 today is still a long way short of the its record high of a shade under 7,000 at the peak of the dot com bubble. And the economy is not out of the recessionary woods yet, with people still arguing about what shape the it will turn out to be and whether there's going to be a double-dip (possibly exacerbated by the world's banking system, which really hasn't yet rectified its fundamental structural problems).

Back into shares?

So, if you're now thinking of selling the glittery stuff (or extracting the readies from under the mattress, or wherever your stash is) and putting your cash back into shares, should you invest it all in a lump sum to take full advantage of any new bull market that we may have entered, or should you drip feed it in small amounts to minimise the risk of any new downturn losing you a packet? Depending on how the market turns out, it could make quite a difference.

If you had been investing some money for, say, a year, at any time during the last bull run, you'd almost certainly have been better off with a lump sum at the beginning of the year -- various figures suggest that if you'd invested your lump sum into a FTSE 100 index tracker at the start of, say, 2004, or 2005, you'd have ended the year better off than if you'd drip-fed monthly instalments instead.

But look at the 12 months just gone and you'll see a completely different picture. Had you put your cash down in a lump sum investment exactly a year ago, when the FTSE hadn't quite dropped below the 5,000 level yet (but was shortly about to), you'd still be sitting on a slight loss today, with the index not yet having regained its level of mid-September 2008. 

But if, instead, you'd drip-fed money into your tracker monthly, you'd be laughing today. You'd have bought more shares in months when the market was down, and eleven out of your twelve monthly instalments would now be in profit -- some, like your March 2009 instalment, which you'd have bought when the FTSE was barely above 3,500, handsomely so. In fact, only one of your investment instalments, your initial one a year ago, would be in the red.

How do you do it?

So, knowing the difference your strategy can make depending one how the market moves in the next year, how do you get your timing right? The simply answer is you can't. One approach suggests that, since, historically, there have been far more years in which the markets have risen than fallen, you should favour a strategy that works best in the bull years, and so get your lump sums invested as soon as possible -- but that might not help your peace of mind if you plonk it all down now and next year turns out to be a stinker.

I'd personally recommend a two-pronged strategy that ignores the short-term movements of the market altogether. Prong one is to make regular monthly investments from your salary into an index tracker, stashing it away and forgetting about it, and hoovering up lots of cheap shares during market dips.

The second prong is for lump sums, and I'd go for individual shares, paying no attention to the overall market whatsoever. If I think a share is currently a bargain, because the price is significantly lower than I think it should be in comparison to the company's actual business performance (which has got nothing to do with the wiggly lines on the FTSE charts), then it goes on my list of potential purchases. Then whenever I have a lump sum, if there are cheap shares on my list, I'll buy some. And if not, I'll sit on the cash.

And in ten or fifteen years' time, the up years and the down years will have evened things our much more beneficially than any attempts at market timing on my part would have done.

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Comments

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theRealGrinch 15 Sep 2009 , 4:46pm

looking back into the 2008 archives you guys made some dog tips for buys!!

read the archives. why should anyone believe you guys now?

theRealGrinch 15 Sep 2009 , 4:49pm

in fact let me make it easy...

http://www.fool.co.uk/news/investing/company-comment/2008/05/28/speedy-looks-good.aspx

speedy hire....tipped at about 700p today 45p!!

ok it wasnt this particular author but it was the fool.

lotontech 15 Sep 2009 , 9:08pm

The drip-feed approach that you describe is called pound-cost-averaging, but there is another way:

* You buy at 75p-per-share with at stop-loss at 50p, thus risking 25p.
* When the price moves to 150p you buy again with a stop loss on this position at 125 (thus risking 25p) and stop loss on your original position at 125 (thus risking minus 50p). Secured profit = 25p if you get stopped-out.
* When the price moves to 200p you buy again and move all your stops to 175p, thus securing a total profit of 100p if you get stopped-out.

There is a nice chart to illustrate this in my 'pyramiding' article at http://www.stockbrokers.barclays.co.uk/content/misc/landing72.htm

The point is that as your amount invested increases (hence bigger dividend payouts) you are actually de-risking and locking in capital profits. Your maximum risk was 33% of your initial 'limited' investment; not 100% of your entire capital nor even 100% of your first drip-feed contribution.

This money management technique can be practised on any stock, index, or other financial instrument that has a wiggly line -- no fundamental analysis required ;-)

k8r4u 16 Sep 2009 , 10:10am

Ehh, if we were binary-digited, we'd have celebrated the psychologically important 4,096 resistance level. Dunno how many fingers you'd need to find 5,120 of much interest, but it would not be an integer number :-)

TMFBoing 16 Sep 2009 , 12:53pm

Ehh, if we were binary-digited, we'd have celebrated the psychologically important 4,096 resistance level. Dunno how many fingers you'd need to find 5,120 of much interest, but it would not be an integer number :-)

Well, I wanted something close to 5,000, and at least it's 5 x 1024 :-)

Cheers,
Alan O

Iniq 16 Sep 2009 , 1:02pm

I'm a big believer in pound-cost-averaging and drip-feeding money in even when I've got a lump sum to invest.

If you do the arithmetic, you'l find that if a fund varies randomly in price over any given period but ends up back at the price it started at, then provided it spends as much time below the starting price as above it, you will still have made a profit provided you drip-fed the money in.

OK, only a small profit, but still a profit, and the more wildly the price varies, the greater the profit from pound-cost-averaging.

OK, it may be a dull way of investing, but that suits me fine. If I want excitement, I'll go sky diving.

gordonbanks42 16 Sep 2009 , 1:57pm

@k8r4u:

5120 *is* an integer in binary. We would need thirteen digits to represent it. The most significant digit of the thirteen would be set to represent "1", as would the next-but-one digit. All the other digits would be set to represent "0". That gives you binary 101 x 2^10, which is 5 x 1024, which is 5120.

No mutilation required.

Given the need of market participants to have exciting things happening (or in prospect) often enough to keep them interested, and that the gap between 4096 and 5120 is about the same as that between 4000 and 5000, I expect that we would indeed now be eagerly awaiting FTSE 5120, having completely missed the "psychological importance" of FTSE 5000.

Just as we poor decimal types have in fact completely overlooked the recent breaching of the "psychologically important" level of FTSE 4992.

Fingered 16 Sep 2009 , 3:28pm

This numbers stuff - you are on the wrong track guys. Here's a bunny rabbit clue: 1,2,3,5,8 ........

Fingered 16 Sep 2009 , 5:22pm

To clue you in further, it's over 800 years old.

Fingered 16 Sep 2009 , 8:21pm

Lotontech, stop losses are but a small part of the overall equation and fraught with difficulty if the technique is not used right. ... I wouldn't even dream of entering a trade as you describe as buying at 75p-per-share with at stop-loss at 50p, thus risking 25p.
Scaled up are you seriously suggesting entering a trade opened for £750,000 and let it ride on a stop loss setup toonly let me lose £250,000 ??? Erm I don't thinks so!!

CheckeredBuffoon 17 Sep 2009 , 1:32am

How about an article on the "pyramiding method" noted above? I'm pretty new to all this and as a first pass it looks like a good way to minimize the risks - especially for a novice. Then I read Fingered's comments and realized that, as usual, there is more to it. I assume there are costs involved with setting these up stop losses, so would appreciate a no-nonsense analysis of the method with some worked examples. Thanks

lotontech 17 Sep 2009 , 8:55am

Hi Fingered,

The minus-33% stop loss was just an example to demonstrate the principle.

You're right that it's not only about Stop Orders, and I think you missed the important Position Sizing element; that you only commit a proportion of funds initially, and then commit more only when you can do so at no additional risk.

So you might commit £75,000 initially and accept (but not expect) a loss of say £15,000 in the unlikely event that a minus-20% stop order triggers.

In a nutshell, you might be risking only ever 2% of your £750,000 nest egg rather than the 33% you assume :-)

CheckeredBuffoon: there was a link to a free pyramiding article in my original message, and I'm sure this will feature in a book soon.

Yes, Fingered is right to urge caution if you don't really understand how it works. It works for me; it might not work for you.

Tony Loton

RobinnBanks 19 Sep 2009 , 7:07pm

We used to count in dozens - did we have twelve fingers in our early evolution? Bakers must have been an odd lot!
If you have some cash, get it in when the market is down to get the best return. If it's not down, wait until it is!

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