Comparing International Equity Markets — The Global Investor's Overview

Most private investors who claim to invest "globally" are in reality heavily overweight their home market and the United States. This home bias is understandable — familiarity, currency convenience, and the dominance of US companies in everyday life all pull toward the familiar. But a genuinely international investor who understands the distinct characteristics of each major equity market can make more informed allocation decisions and identify opportunities that a domestically focused investor will miss.

This guide examines the world's major equity markets — their size, composition, valuation characteristics, structural risks, and the investment case at each location.

The US equity market: dominant but not irreplaceable

The United States is by far the world's largest equity market by market capitalisation. As of mid-2026, the US market (NYSE + NASDAQ combined) represents approximately $55–60 trillion in market capitalisation — roughly 60–65% of the MSCI All Country World Index. Any globally diversified investor is, by default, heavily weighted to the US.

The S&P 500 has returned approximately 10% per year in nominal terms since 1928, making it the best-performing major equity market over the long term. Over the past 15 years (2011–2026), the outperformance has been even more dramatic — largely driven by the surge in US technology mega-caps (Apple, Microsoft, NVIDIA, Alphabet, Amazon, Meta), which have grown to represent 25–30% of the S&P 500 alone.

The key debates around US equity concentration:

US exceptionalism: the US market's premium valuation (typically 21–23× forward P/E) reflects genuine advantages — the world's deepest capital markets, the strongest innovation ecosystem, the reserve currency, robust property rights, and the ability to attract global talent. This is not pure multiple expansion from thin air.

Concentration risk: the top 10 stocks in the S&P 500 represent approximately 35% of the index. A passive US equity investor has enormous concentration in a small number of technology companies. Their valuations are sensitive to interest rates, regulatory risk (antitrust), and geopolitical tensions (particularly around Taiwan and AI chip supply chains).

Currency risk: for non-US investors, US equity exposure involves US dollar risk. Dollar strength amplifies returns; dollar weakness reduces them. The dollar tends to strengthen in crises (safe haven), which provides some natural hedge, but over very long periods the currency contribution is unpredictable.

The UK equity market: value or value trap?

The FTSE 100 (the UK's 100 largest listed companies) has a market capitalisation of approximately $2.5 trillion — placing it around the 9th largest market globally. The UK market's composition is very different from the US: it is dominated by "old economy" sectors — financial services (banks, insurers), energy (Shell, BP), miners (Rio Tinto, BHP, Glencore), consumer staples (Unilever, Diageo, AstraZeneca) — and has very limited technology representation.

This composition has been a structural headwind for performance relative to the US over the past decade. The FTSE 100 has significantly underperformed the S&P 500 in sterling terms over any trailing 10-year period since 2010.

Yet the UK market has compensating characteristics:

High dividend yield: the FTSE 100 yields approximately 3.5–4.5% in dividends — significantly above the S&P 500's 1.3–1.5%. For income-seeking investors, the UK market provides meaningful natural income without needing to sell holdings.

Valuation discount: UK stocks trade at approximately 10–13× forward P/E — a substantial discount to the US and a modest discount to Europe. Whether this reflects genuine undervaluation or a permanent "UK discount" driven by Brexit structural damage and the market's sector composition is debated.

Global revenues: despite being listed in London, most large FTSE 100 companies generate the majority of their revenues internationally. Shell, BP, HSBC, Rio Tinto, and AstraZeneca are global businesses that happen to be UK-listed. The FTSE 100 is not a "UK economy" play in the way the FTSE 250 is.

European equity markets: quality at a discount

Europe encompasses a wide range of markets with distinct characteristics. The principal indices:

• STOXX Europe 600: the broadest European benchmark; 600 companies across 17 European countries.
• DAX (Germany): export-oriented industrials, chemicals, and auto manufacturers; heavily exposed to China demand and energy costs.
• CAC 40 (France): heavy weighting to luxury goods (LVMH, Hermès, Kering), energy (TotalEnergies), and financial services (BNP Paribas).

European equities trade at approximately 12–14× forward P/E — a significant discount to the US. The case for European equities rests on this valuation gap, the quality of businesses in sectors where Europe leads globally (luxury goods, industrials, pharmaceuticals, financial services), and the potential for the valuation discount to narrow if European earnings growth improves.

The case against: Europe has structurally lower economic growth than the US; energy prices remain higher (impairing competitiveness); defence spending requirements are rising (a fiscal burden); and political fragmentation across member states constrains coordinated policy response.

Japan: the corporate governance revolution

The Nikkei 225 — Japan's premier equity index — finally broke through its 1989 all-time high in 2024, ending a 35-year bear market that became synonymous with the consequences of asset bubble excess. The recovery reflects a genuine structural shift in Japanese corporate governance.

In 2023, the Tokyo Stock Exchange issued guidance to all companies trading below book value (price/book < 1.0) — meaning the market valued them at less than their net asset value — to develop and disclose plans for improving capital efficiency. The response has been a wave of share buybacks, special dividends, and restructuring announcements that has delivered meaningful value to shareholders.

Warren Buffett's investment in the five major Japanese trading companies (Itochu, Marubeni, Mitsubishi, Mitsui, and Sumitomo) — disclosed in 2020 and substantially expanded since — provided a high-profile endorsement of the Japanese equity investment case and helped catalyse broader international interest.

Japan's investable universe includes: globally competitive companies in robotics, semiconductors, precision engineering, and consumer electronics; a domestic economy with improving corporate returns; and a currency (yen) that has provided additional return for foreign investors when it strengthens. The risks include: currency volatility; the Bank of Japan's unpredictable policy shifts (the 2024 rate rise triggered significant global market volatility); and the structural challenge of a declining and ageing domestic population.

Emerging markets: growth with genuine risk

The MSCI Emerging Markets Index covers 24 countries, with China (approximately 30–35% of the index), India (approximately 20%), Taiwan (approximately 17%), and Brazil and South Korea as the other major constituents.

China presents the greatest EM complexity. The world's second-largest economy hosts some of its most sophisticated technology companies — Alibaba, Tencent, BYD — but also faces: regulatory risk (the 2021 tech crackdown that wiped 50%+ from major Chinese tech stocks); geopolitical risk (Taiwan tensions; US technology export restrictions); and a property sector crisis that has inflicted substantial losses on domestic wealth. China's EM weight has fallen from approximately 40% to 30% as its market has underperformed.

India is the EM growth story of the 2020s. With its demographic dividend, improving digital infrastructure, growing middle class, and government-led infrastructure investment, India's equity market has performed strongly. The MSCI India is one of the few major markets that has outperformed the S&P 500 over some recent periods. The risk: valuations are no longer cheap (20+ × forward P/E for the broad market), and the history of EM growth stories disappointing is long.

Other EM markets: Vietnam, Indonesia, and Mexico represent smaller but increasingly interesting markets where manufacturing supply chain diversification from China is driving investment. Each requires specific local knowledge and comfort with political risk.

Building a global equity allocation

Most investors benefit from starting with a broad global equity index fund (MSCI World or MSCI All Country World), which provides automatic exposure to all major markets weighted by market capitalisation. Active tilts — toward the UK for income, Europe for value, Japan for the governance revolution, or specific EM countries — can be layered on top as satellite positions for investors with strong views.

The critical discipline is avoiding both pure home bias (over-concentration in one market) and pure trend-chasing (overweighting whatever has recently outperformed). Each market cycle tends to produce a different winner; the diversified portfolio captures the best performers without requiring the investor to correctly predict which market will lead next.

Compliance note

This guide is for informational purposes only and does not constitute personal financial or investment advice. International investments involve currency risk, political risk, and other risks in addition to market risk. Market valuations, compositions, and returns change over time. Past performance does not guarantee future results. Specific index levels and market statistics are approximate and change constantly. Always seek qualified independent financial advice before making investment decisions.

How Global Investments can help

International equity allocation is at the heart of what we do for HNW clients. Our team has direct market knowledge across the UK, UAE, Europe, and Asia — markets where we are also active in property investment — providing a grounded view of local economic conditions and equity market prospects that goes beyond desk research. Whether you are reviewing the geographic balance of an existing equity portfolio or building a new international allocation strategy, contact us to discuss the approach.