October 07, 2026
Markets fall. That sentence shouldn't be a surprise, yet it lands like one every time. Drops of 10% or 20% are a recurring feature of investing, not evidence that the whole system has broken. The hard part isn't accepting that in the abstract. It's sitting still while it happens to your money. When the headlines darken and the red numbers stack up, selling can feel like prudence. More often, it turns out to be the most expensive decision an investor makes.
Market cycles are ordinary, and nobody sends a warning
A market cycle moves through four broad phases: expansion, peak, contraction and recovery. The labels are tidy; the reality is not. Some cycles last a couple of years, others a decade. There is no schedule, no announcement and no clean signal that a peak has passed. By the time falling prices are obvious, they have already fallen.
That is why the phrase "the market is due a correction" tells you almost nothing. Markets do not owe anyone anything. They reprice when expectations, interest rates, earnings or sentiment shift, and they often overshoot in both directions — up on optimism, down on fear. Recovery, awkwardly, tends to begin while the news is still bad. Waiting for reassurance usually means waiting until prices have already moved.
If you are adding money regularly and your horizon is measured in decades, falling prices are not purely bad news. Your monthly contribution buys more units than it did last quarter. That is the mechanism working in your favour, even when it doesn't feel like it.
Timing the market means getting two decisions right
Selling in a downturn is not one decision. It is two: when to get out, and when to get back in. The first is emotionally easy in the moment. The second is where most people come unstuck, because buying back in means committing while the same frightening headlines are still running.
The best days cluster near the worst ones
Large single-day gains have a habit of arriving in the middle of volatile stretches, often shortly after heavy losses. Miss a handful of those days and your long-run outcome can look very different. There is no reliable way to know in advance which days they will be — which is precisely the point.
You also have to be right about your own nerve
A plan that says "I'll sell at the top and buy at the bottom" assumes you will feel brave while prices are still falling and confident when the outlook is dire. Almost nobody does. A plan that survives contact with your own behaviour beats a clever one that does not.
What selling actually does
When you sell into a fall, you convert a temporary paper loss into a permanent one. The loss was already on the screen; the sale makes it final, and removes any chance of taking part in the recovery.
There are practical consequences too. Selling inside an ISA or pension does not create a capital gains tax bill, but selling investments held outside a tax wrapper can realise gains you did not need to realise — and buying the same investment back within 30 days brings its own matching rules that can affect how gains are calculated. If your situation is at all complicated, a conversation with an FCA-regulated adviser before you act is money well spent.
Then there is the cash problem. Money sitting on the sidelines earns little, and it has to be reinvested at some point. Every month out of the market is a month your money is not working.
Why long-term investing still does the work
Long-term investing is not a slogan; it describes how returns are actually generated. Companies earn profits, reinvest them and pay dividends, and those dividends compound when they are reinvested. That process unfolds over years, not quarters, and it does not stop because one quarter was ugly.
Your own portfolio is usually duller than the headlines. A diversified global fund holds hundreds or thousands of companies across sectors and countries. When one area struggles, another may hold up. Your job is not to guess which one wins next. It is to stay diversified, keep costs low, and let time do the heavy lifting.
A practical plan for the next bad week
Write this down now, while markets are calm:
- Set a target allocation and stick to it. Decide your split between shares, bonds and cash, then rebalance once or twice a year rather than in reaction to headlines.
- Match your money to your horizon. Money you need within three to five years does not belong in volatile assets. If it is there, the problem is not the market but the mismatch.
- Build a cash buffer. Three to six months of essential spending in an easy-access account means a downturn never forces you to sell.
- Keep contributing. Automate it so the decision is not made by your mood on a Tuesday morning.
- Check less often. Watching prices daily raises the odds you will act on noise. Weekly or monthly is plenty.
- Write down your reasons. A short note explaining why you own each holding is surprisingly effective at preventing a panic sale.
Staying invested is a decision you keep making
Nobody enjoys watching a portfolio fall. The trick is not to feel nothing; it is to have decided in advance what you will do before the feeling arrives. Write your plan down this week, confirm you have enough cash outside the market, and set a reminder to review in six months. Then leave it alone.
If you are close to retirement, or already drawing an income from your investments, the calculation is different and the stakes are higher. A regulated adviser can look at your circumstances, including tax and the order in which you take withdrawals. For everyone else, the arithmetic is simple: selling during a downturn is the only way a temporary fall becomes a permanent one.
Photo: sakibmia24 / Pixabay
