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Dollar-cost average or go all in?

Everything you need to know about dollar-cost averaging, what it is and how it works.

In this blog, we uncover all you need to know about dollar-cost averaging, what it is and how it could help you gain more of life’s most valuable asset – time.

Dollar-cost averaging sounds quite technical doesn’t it? As with most things finance related it’s another jargony term for quite a simple investment strategy that involves making small, regular, contributions to your investments.

The sophistication doesn’t come from the strategy itself, but how it could help you gain more time, sleep and peace of mind. Whether you’re new to investing or a professional, the decision of when to invest your money can be a challenging one.

Should you invest everything at once or dip your toes in by investing smaller amounts over time? Often we get caught on the hamster wheel trying to work out which is better. This procrastination can paralyse us from making any decision – which is the worst decision of all.

The truth is, both strategies have their own merits and limitations, but often our choice of one over the other is linked to our desire to reduce our sense of short-term regret.

So, what is the best approach?

In this blog we’ll cover:

Dollar cost averaging: How it works

Let’s say you have a lazy $24,000 in your bank account earning a low interest rate. In the back of your mind you’re thinking “I should really be doing more with my money”.

Now let’s assume you’ve taken the next step and decided to invest that money. What next? You broadly have two choices:

  • Lump sum: invest the whole $24,000 in one go; or

  • Dollar-cost average: Divide the $24,000 into smaller amounts and drip-feed it into the market over a period of time. Say $2,000 per month over 12 months or $1,000 per fortnight.

When you dollar cost average you purchase some investments at higher prices when markets are up and at a lower price when markets are down. The aim is to ‘average’ out the purchase price for your investments over a set period and calm your nerves along the way.

Lump sum (all-in) or dollar cost averaging?

The chart shows how much you have invested in markets each month based on investing $2,000 over 12 months compared to investing $24,000 upfront. A good question to ask yourself is how comfortable you’d feel investing the full $24,000 straight away compared to small, regular amounts each month.

How would you feel if the market kept going up? How would you feel if markets fell? These questions can help you decide where you’d feel the biggest regret and if it’s better for you to dollar cost average.

Lump sum vs dollar-cost average

Which strategy works better for Australian investors (1984 – 2011)?

Vanguard found that Australian investors achieve better returns investing as a lump sum 66% of the time.

This makes sense because markets tend to go up most of the time, so you’ll usually be better off investing now rather than leaving money on the sidelines. Dollar cost averaging really just delays when you start to take investing risk and earn investing returns.

So why would you dollar-cost average if research shows investing as a lump sum leads to better results most of the time?

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Having some money waiting on the sidelines can be appealing because it helps us avoid regret on the small chance the market has a temporary fall.

If markets fall and you’re dollar cost averaging you get to top-up up at the lower prices. Investing smaller amounts regularly can help you feel less nervous, even if it can also mean buying at higher prices.

One reason for this is because humans feel the impact of losses about twice as much as gains. The real appeal of dollar cost averaging is it helps you spend less time procrastinating about investing and can help you sleep better at night as you get started.

Pros and cons of lump sum vs dollar-cost averaging

  Pros Cons
Lump sum Most of the time you’ll be better off since markets trend up. Occasionally if markets fall you’ll have to stomach an initial fall in your portfolio.
Dollar-cost averaging May help you sleep better and minimise regret along the way. On the chance markets fall you’ll be better off. Most of the time worse off since you’ll be buying at higher prices later on.

Is Dollar Cost Averaging a good idea?

What kind of investor are you? If your emotions make you nervous about what markets may do over the short-term then a dollar-cost averaging plan could be right for you.

It will help keep you disciplined, patient, and reduce any anxiety along the way – everything you need to be masterful investor!

On the flipside, if you’re confident to invest it all today, then go for it! Just try not to lose sleep at night over your decision and make sure you plan to invest for at least a few years to give you the best chance of success.

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Advice & Client Care

Sarah has over 13 years experience in the financial services sector. She has spent most of her career working in financial advisory, operations and administrative roles. She holds a B.Business/BA International Studies and Graduate Diploma in Financial Planning.

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