I doubt I’m casting aspersions on Fool UK readers if I suggest most of us know what it’s like to have a hangover.
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Probably all too well!
For the benefit of the virtuous, a hangover is an all-over bodily unpleasantness that ranges from a mild tiredness through general squiffiness and right up to a dreadful doomed sensation that you’re right at death’s door.
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And what makes it worse â or at least poetic â is that hangovers result from hedonism.
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Perhaps that’s why we silently vow “never again” when nursing a hangover. It’s like the petition of a religious person atoning for their sins.
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Yet the miraculous thing about hangovers â to me anyway â is how quickly they pass.
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Mostly when you feel that sick â with flu or a stomach bug, say, let alone more serious ailments â you’re in for days or weeks of misery.
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But with a hangover it can feel like your repentant prayers were answered.
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You can feel awful in the morning and be up for it, Lazarus-like, by dinnertime. It’s remarkable. No reason to pursue the dire health consequences of drinking to excess, we can all agree, but a transformation that has to be lived in order to be believed.
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Which brings me (isn’t it obvious?) to the stock market.
Ouch my head!
For investors, the past six months has followed the euphoria-to-excess-to-never-again-to-unexpected-recovery template of a hangover I’ve just described to a total tea.
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Shrugging off an early wobble in 2018, shares spent most of the summer near all-time highs. The sun was out and life was good. It was time to party â or more prosaically to be tempted into taking excessive risks in your portfolio.
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But then came the morning after the night before.
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From October to the end of December shares slumped. Was the long bull market over? It felt that way, and as markets declined by 20% or more they gave investors a hangover few could ignore.
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I heard some say they’d had enough â it was time to get defensive. They didn’t quite say “never again” but they sold their shares and took refuge in cash.
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It seemed a good move, for about five minutes.
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Yet in 2019 global equities have soared, racing back towards their old highs.
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And just like an evaporating hangover, the reversal was as unexpected as glorious.
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Even the Brexit-blighted British market has barely looked back this year. On a total return basis the FTSE All-Share is up 14%. Most of us would be delighted with that as an annual return. This has been achieved in barely four months.
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It’s enough to send even the most abstemious investor off looking for a tipple, whether to celebrate or to calm their nerves.
A marathon session
Talking of drinking, let’s get back to my metaphor.
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Over time, hardened drinkers can become accustomed to the effects of alcohol and blunt the misery of a terrible hangover, albeit at the cost of rarely feeling very good.
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And it’s here that my comparison starts to fall apart.
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Because unless you’re engaged in a very few exotic professions â you’re a 17th Century pirate, perhaps, or maybe you’re a Russian soldier in the 1940s Red Army desperate to drink your comrades under the table â there’s no sensible reason to get accustomed to consuming more alcohol.
While many of us enjoy the odd glass or two â and that includes me â alcohol is a poison that does us no good. A hangover seems to be nature’s way of reminding us!
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In contrast, becoming better at riding out the swings from high to low in the stock market is a skill worth mastering. The more accustomed â and at peace â you are with volatility in share prices, the better you’re set for reaching your investing goals.
Make my portfolio a double
To return to my tortured metaphor one last time, you don’t want to use your growing volatility tolerance to take things to excess.
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It’s good to be able to sit through a period like last autumn with equanimity, to keep regularly saving new money into your portfolio â and to not sell the shares you own.
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That’s the kind of pain tolerance that can make you rich in the long run.
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But start monitoring your portfolio too often â just because you can take the pain â and you may usher in destructive behaviours, such as market timing or even day trading.
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Moderation and steadfastness won’t make you the most exciting person in the pub â you won’t pick fights, end up on or under the table, or have exciting investing war stories to tell at the bar â but it will be best for your health and wealth in the long term.