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Report published August 17, 2026

Why Investors Should Diversify Beyond US Equities: UBS Portfolio Strategy

Source and citation context

Issuer
UBS
Report date
August 17, 2026
Analysis as of
Not stated in source

Authors / editors: Ulrike Hoffmann-Burchardi (Chief Investment Officer Americas and Global Head of Equities), Matthew Gilman (Head, CIO Europe Equity Strategy), Suresh Tantia (Head CIO Asia Equity Strategy), Laura Smith (Analyst), Vincent Heaney (Strategist)

Finvaulta summarizes UBS's analysis. Attribute opinions, forecasts, time-sensitive values, and chronology to the issuer and report date; do not treat this page as an independent verification or a current market-data source.

Portfolio PositioningEquitiesStructured ProductsConsumer DiscretionaryFinancials

While US equities account for over 60% of global indices, UBS advises investors to diversify globally as earnings growth broadens beyond US mega-cap AI leaders. Regions including Europe, Asia ex-Japan, Japan, and emerging markets offer strong profit growth potential and help mitigate severe portfolio concentration risks.

Key Takeaways

  • 1.Investors are heavily concentrated in US equities, but earnings growth is broadening beyond US mega-cap tech and AI themes to international regions.
  • 2.Eurozone profits are expected to exit stagnation with ~25% cumulative earnings growth over 2026–2027, and MSCI Asia ex-Japan earnings are projected to rise 72% in 2026.
  • 3.Concentration risk is elevated, with nearly 40% of platform self-managed equity investors holding over half their portfolio in 10 or fewer stocks; investors should diversify across preferred regions, sectors, and structured strategies.

Table of Contents

  • Key message
  • 01 Investors may focus chiefly on US stocks given their importance and the pace of earnings growth.
  • 02 But we believe the earnings story extends beyond the US and AI.
  • 03 So, investors should diversify stock allocations across preferred regions, sectors, and return drivers.
  • New this week
  • One liner
  • Did you know?
  • Investment view
  • Non-Traditional Assets
  • Disclaimer

Report data

Key figures extracted from this report

MetricEstimateContext
US share of global equity index60%The US accounts for over 60% of global stocks based on MSCI AC World data.
S&P 500 Q2 earnings growth estimate28%S&P 500 second-quarter earnings growth estimate may be surpassed.
Semiconductor contribution to S&P 500 Q2 earnings growth40%Semis earnings contribute roughly 40% to S&P 500 Q2 profit growth.
Eurozone earnings growth forecast25%Total expected cumulative earnings growth over 2026 and 2027 as profits exit a 3-year stagnation.
MSCI Asia ex-Japan earnings growth forecast72%Forecast earnings growth for MSCI Asia ex-Japan this year.
Source: MSCI AC World data; UBS. This is a dated model snapshot, not a live forecast.

Reports in this series

UBS House View Briefcase is shown in chronological order through this edition, published on August 17, 2026.

Part of the UBS House View Briefcase series — view all 20 editions

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Authors / Editors

Ulrike Hoffmann-Burchardi · Chief Investment Officer Americas and Global Head of EquitiesMatthew Gilman · Head, CIO Europe Equity StrategySuresh Tantia · Head CIO Asia Equity StrategyLaura Smith · AnalystVincent Heaney · Strategist

Reported Data Context

  • US share of global equity index: 60 % (2026) · Source: MSCI AC World data
  • S&P 500 Q2 earnings growth estimate: 28 % (Q2 2026) · Source: UBS
  • Semiconductor contribution to S&P 500 Q2 earnings growth: 40 % (Q2 2026) · Source: UBS
  • Eurozone earnings growth forecast: 25 % (2026-2027) · Source: UBS
  • MSCI Asia ex-Japan earnings growth forecast: 72 % (2026) · Source: UBS

Securities

SPXMSCI AC World IndexSXXPMSCI Asia ex-Japan Index

Themes

Equity Market Broadening and Global DiversificationUS Market Concentration RiskEuropean and Asian Earnings Recovery

Regions

North AmericaEuropeAsia PacificUnited StatesJapanIndia