Should I invest globally or mostly in my home country’s market?
A global core spreads your money across economies, which matters most when your home market is a small slice of the world. Some tilt to home can make sense, mainly for the currency you will spend.
For most people a broadly global core is the better default, because it spreads your money across economies, industries and currencies rather than tying it to one country’s fortunes. That matters most when your home market is a small part of the world, which for most countries it is. Some tilt towards home can be reasonable — chiefly because you will spend in that currency — but a portfolio held almost entirely at home is a concentrated bet, whatever it feels like.
How big your home market really is
MSCI’s all-country world index covers large and mid-sized companies in 47 countries, through 2,458 constituents. At the end of August 2026 the United States made up 63.6% of it, Japan 5.1%, Taiwan 3.3%, the United Kingdom 3.1% and Canada 3.1%; the other 42 countries shared the remaining 21.9%. Outside the US, any single home market is a few per cent of the index at most.
A home market is often narrower than it looks, too. The Cambridge long-run returns project notes that in 33 of 47 countries, three large industries made up most of the market’s value — so a home-only portfolio is frequently a bet on a few sectors as well as a single economy.
What a single market can do
Japan is the standard warning. Its Nikkei 225 closed at 38,915.87 on 29 December 1989 and did not close above that level again until 22 February 2024. A Japanese saver who held only Japanese shares through those 34 years needed dividends and patience; one with a global portfolio had the rest of the world working while Japan did not.
Reasons for some home bias
- Currency. If you will spend rupees, pounds or ringgit, assets in that currency move with your bills. Foreign assets add an exchange rate to the market risk.
- Cost, access and tax. Domestic funds can be cheaper or simpler to hold, and how your country taxes a foreign fund may differ from a domestic one — check before you buy.
Currency, and whether to hedge it
Currency can swamp a market’s return. Vanguard’s May 2026 paper shows the same global share index returning nearly 22% in 2025 to a US-dollar investor and 6.3% to a Swiss one, purely because of exchange rates. Its rule of thumb: portfolios mainly in bonds usually benefit from hedging more of their currency risk, while equity-heavy investors often gain diversification by leaving it largely unhedged.
Investment Performance
85out of 100
- Return against your plan67 · StrongReturning 12.7% a year against the 11.0% your plan assumes, over 4.3 years.Measured against the 11.0% a year your own plan projects with
- Concentration98 · StrongSovereign Gold Bond is 11.0% of what you have listed — the largest single company you own. Nothing here depends on one company going well.Measured against your largest single-company position, against what you have listed
- Priced daily56 · Sound55.9% of what you hold is priced by a market every day. The rest is a figure you typed, and it moves only when you change it.Measured against how much of your money a market prices — a reading about this page, not about your investing
- Spread across asset classes100 · StrongHeld across 4 of seven classes, weighted as if across 2.5 — and with 17 years left, 2.2 is the spread this reading looks for. Shares and funds is 58.5% of everything you hold.Measured against how many classes your money is spread over, against the 2.2 this reading looks for with 17 years left
- Markets and currencies100 · Strong4 markets, with NYSE carrying 35.3%. 52.5% of it is already in INR.Measured against which markets your listed money is in, against the INR you will be spending
- Regular contributions100 · StrongMoney went in on 24 of the last 24 months, and a SIP is running. This is the one of the six you control every month, and it is the one doing the most work.Measured against how often money actually goes in
Investment Performance’s six readings for the illustrative household. Three are judged against its own plan, years and currency, so the same portfolio can read differently for somebody else.
- Markets and currencies — which markets your listed money is in, against the currency you will be spending.
- Spread across asset classes — how many classes your money is spread over, for your years to independence.
Illustrative figures — not anybody’s real plan.
Common mistakes
- Assuming a home index is diversified because it holds many companies, when a few sectors dominate it.
- Going all-in on whichever country did best last decade.
- Ignoring the currency you will spend in when you choose where to invest.
- Not checking how your country taxes foreign funds before buying them.
What would change the answer
If you will settle somewhere other than where you earn, the “home” that matters is where you will spend — see which currency your savings should be in. In Nivritee, the stress test Your money abroad buys 15% less shows what a currency move at the moment you stop working does to the plan.
Sources
- MSCI ACWI Index (USD) fact sheet — MSCI (figures as of 2026-08-31)
- Global investment returns (Dimson, Marsh and Staunton long-run database) — Cambridge Judge Business School
- Nikkei Stock Average, Nikkei 225 (NIKKEI225), daily close — Federal Reserve Bank of St. Louis (FRED), data from Nikkei Inc. (figures as of 2026-10-01)
- The FX dimension: Evaluating currency hedging for global multi-asset portfolios (May 2026) — Vanguard Research
See this in your own plan.
Open Investment PerformanceLast reviewed 1 October 2026.
This is general information, not advice for your circumstances. Rules and limits change; check the official source for your country, and consult a licensed professional before making financial decisions.