Should you always be fully invested?

Or should you keep some cash back in case of a crash?

The content of this article was relevant at the time of publishing. Circumstances change continuously and caution should therefore be exercised when relying upon any content contained within this article.

You’re reading a free article with opinions that may differ from The Motley Fool’s Premium Investing Services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn More.

Have you looked at the shares that crashed in the wake of the EU referendum and thought “ooh, I’d love to snap up some of those bargains, but I haven’t got the cash because I’m already fully invested?” I have. I’d have loved to have bought banks, insurers and housebuilders in the days following the vote — but my investing cash was already fully employed and I had to watch others enjoying the bargain hunt.

If you were fully invested in the FTSE 100 a year ago, you’d be up around 11% today, with dividends probably taking you to around 14%-15%.

But if you’d kept the cash and piled in during late June to early July, you could today be sitting on a 38% profit on Barclays, 54% from Aviva, and 34% with Taylor Wimpey. That’s just picking one from each of the three punished sectors, but other combinations would yield similar results. You’d be way ahead.

Which is really better?

So should you keep some of your cash reserved and ready for the next big crash? I say no, for a number of very good reasons.

The Brexit vote took us by surprise, but at least one thing we knew about it for sure was the date — you really could reserve your cash in advance and then snap up the bargains should the Leave camp win the day.

But when was the previous opportunity to have done the same? I’d say it was the banking crisis, but that started back in 2007. Banking shares didn’t bottom out for another two years — and we had no advance notification of the dates.

If you’d been watching Barclays back then, you’d have seen a slow and steady share price slide for all that time. Could you have called the bottom? You would only have had to miss it by a little bit either way for your strategy to have failed.

But the bigger long-term downside is that by sitting on cash and waiting for a crash, you’ll probably forfeit dividends for decades. Even if you get your timings spot on, you’ll probably only dive into shares around once every 10 years, and pull out of them again very quickly — and your timing is simply not going to be that good anyway.

Time is better than timing

Just think of all that lovely dividend cash you’d be turning your nose up at, taking a pittance in savings interest when there are solid shares out there offering 5%, 6% and more in annual yields.

Back to today, what would you do next had you timed the Brexit opportunity just right? Would you sell now and keep the cash for the next stock market dive? If not, when would you sell and how would you decide? And how long do you think it might be before your next boot-filling opportunity?

Couple all of that uncertainty with a decades-long lifetime of investing, and I reckon you’d be making a serious mistake keeping cash out of the market just because you’re hoping for a crash. It’s time that makes investing in shares the great long-term success it is, and you surely owe it to yourself to give your investments the longest time in the market that you can.

Alan Oscroft owns shares of Aviva. The Motley Fool UK has recommended Barclays. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors.

More on Investing Articles

DIVIDEND YIELD text written on a notebook with chart
Investing Articles

8.97%! Why do Taylor Wimpey shares always have such a high dividend yield?

Taylor Wimpey shares come with a huge dividend yield. But investors collecting passive income have ended up paying for it…

Read more »

Mature black woman at home texting on her cell phone while sitting on the couch
Investing Articles

5 years ago £10,000 bought Rolls-Royce shares. How many would it buy today?

Harvey Jones shows just how far and fast Rolls-Royce shares have climbed, and examines whether there's scope for more excitement…

Read more »

Young woman carrying bottle of Energise Sport to the gym
Investing Articles

Want to start investing in the stock market? Have a spare £200 or £300?

Just how much does someone need to start investing? Not very much, explains Christopher Ruane, as he weighs some pros…

Read more »

Man hanging in the balance over a log at seaside in Scotland
Investing Articles

Lloyds shares just dipped below the £1 mark!

Lloyds shares are trading for pennies again! But is this a golden opportunity to pick up shares in the FTSE…

Read more »

ISA coins
Investing Articles

£10,000 put in a Cash ISA a decade ago is now worth…

What would have made someone the most money over the past 10 years -- a Cash ISA or Stocks and…

Read more »

A man with Down's syndrome serves a customer a pint of beer in a pub.
Investing Articles

Are Diageo shares about to pull a Rolls-Royce?

On many metrics, Diageo shares are looking somewhat similar to Rolls-Royce shares a few years back. Could history repeat itself?

Read more »

Warren Buffett at a Berkshire Hathaway AGM
Investing Articles

1 big question to ask when thinking about what Nvidia stock could be worth

Christopher Ruane likes the look of the Nvidia business. But when it comes to its stock price, he's taking a…

Read more »

Night Takeoff Of The American Space Shuttle
Investing Articles

How has the Scottish Mortgage Investment Trust share price risen 57% in a year?

The Scottish Mortgage share price has soared over the last 12 months. After this kind of gain, investors might be…

Read more »