Your home market is only a small part of the picture
Home bias - concentrating investments in your home country - is one of the most common patterns in investing. The problem is that your home market represents only a small slice of the global economy.
The risk of staying too close to home
Concentrating on one country ties your returns to that country's economic performance, currency, politics, and a relatively small group of companies. The UK stock market, for example, represents only a fraction of global markets. Investing only at home means missing exposure to many of the world's largest and fastest-growing businesses.
Why global investing changes the picture
Different regions perform differently at different times. When one market struggles, another may be growing. Global investing reduces reliance on any single economy and opens up a broader set of opportunities.
Developed vs emerging markets
Developed markets - the UK, US, Japan, much of Western Europe - tend to be more stable, with established companies and mature economies. Emerging markets offer higher growth potential but tend to be more volatile. Both play different roles in a well-diversified portfolio.
If your portfolio is heavily weighted towards UK companies, you may be missing a significant portion of global growth. Consider whether a more globally diversified fund better reflects your long-term goals.
Summary
Investing close to home feels comfortable, but it concentrates your risk. Global investing spreads it across countries, industries, and economies - reducing dependence on any single market and giving you exposure to a wider range of long-term growth.
Global diversification is one of the most effective ways to reduce concentration risk without reducing your growth potential. Make sure your investments reflect the breadth of the opportunity available.