Could a single market event significantly impact your portfolio?
If one market event can materially damage your investments, your portfolio is not well diversified.
Even strong businesses can be affected by factors like changing regulations, interest rates or economic pressure. When those exposures are shared across your holdings, your whole portfolio can be affected by a single external shift.
While you could get back less than you invested with any arrangement, diversification spreads exposure across different companies, sectors, asset classes and geographies to reduce the likelihood of any single setback dominating the overall outcome.
What are the risks of a concentrated portfolio?
Company-specific risk
Investing in only one company means factors like management decisions, competitive pressure, debt levels and trading performance could impact your overall position.
Sector risk
If several holdings are exposed to multiple companies within the same industry, they could all be affected by the same shift in regulation, pricing, costs or demand.
For example, a portfolio made up only of motor finance companies would be vulnerable if tighter regulation were to be introduced that made lending more difficult or less profitable.
A broader mix of sectors gives you exposure to different drivers of performance. As with any investment, a degree of risk is still involved and values can fluctuate, meaning you could get back less than you invested.
Considerations when investing overseas
Geographic risk
Investing globally exposes you to different markets, economies and regulatory environments. The opportunities found here are also balanced with risk, especially when market conditions change quickly and access to assets could become harder.
Political risk
Political events can affect investments just as much as economic ones. Policy changes, instability, sanctions or restrictions on capital flows can all disrupt markets and limit access to certain assets.
Currency risk
When you invest in another currency, your return is affected by exchange rate movements as well as investment performance. A weaker pound can improve overseas returns when converted back into sterling, while a stronger pound can reduce them.
The same point applies to UK-listed companies that generate a large share of their revenue overseas.
Diversifying beyond shares
Diversification doesn’t only apply to equities. Bonds, property, cash and other asset classes can all play a role, depending on the portfolio’s objective.
As these assets don’t move in the same way as shares, they can help maintain balance when equity markets are under pressure, but they aren’t immune from risk either.
Bonds can fall in value, particularly when interest rates rise. Property can also come under pressure from borrowing costs, tenant demand and broader market sentiment.
Can a portfolio be too diverse?
There is a point where diversification stops reducing risk and starts diluting conviction. A portfolio with dozens of funds, shares or strategies can end up behaving much like the market itself, growing into a complex and hard-to-manage system.
Some areas may overlap and cancel each other out, meaning growth is slow or stalled. Over-diversification can also make it more difficult to identify what’s driving portfolio performance, as the impact of individual holdings becomes less visible.
Some investors unknowingly hold multiple funds with similar underlying exposures, leading to a portfolio that’s harder to monitor and manage, and less aligned with its intended objectives.
Understanding your portfolio’s exposure
If you’re uncertain whether you’re concentrated, diversified or over-diversified, it can be useful to step back and review how your investments are structured across companies, sectors, asset classes and regions.
A short conversation can help clarify where your current exposure sits and whether any adjustments may be worth considering.
You can book a 30-minute, no-obligation chat with our Practice Principal Alex Wilkins to talk through your position and find out where you stand.
