World Equity Allocations: Global in Name Only?

Acadian

Research

6 Pages

Acadian Asset Management examines how global equity benchmarks have evolved into portfolios dominated by United States large cap and technology exposure. The piece questions whether investors should accept that concentration given rich valuations, elevated macro risk, and the availability of broader non United States opportunities.

Date published: November 2025

Key Takeaways

Benchmark concentration: World equity benchmarks now resemble a United States centric growth portfolio, leaving many investors less diversified than they assume.
Valuation and risk: Rich United States valuations and persistent uncertainty challenge the idea that current regional weights reflect neutral expectations.
Rebalancing opportunity: Tilting toward developed markets outside the United States with active managers can improve diversification and fundamental tradeoffs.
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