Artificial Intelligence (AI) Asset Allocation Emerging Markets Equities Chart

Equity Market Rotation Reveals a Wider World of Return Potential

May 19 2026
2 min read
How Have Global Equity Return Patterns Changed in the Past 16 Months?
Left chart shows cumulative returns of major US and global equity markets over the past 16 years in US-dollar terms. Right chart shows the same markets’ returns over the past 16 months.

Past performance does not guarantee future results.
US Large-Cap Growth represented by Russell 1000 Growth, US Large-Caps by S&P 500, US Large-Cap Value by Russell 1000 Value, Europe by MSCI Europe, non-US stocks by MSCI EAFE, Japan by MSCI Japan and emerging markets by MSCI Emerging Markets. 
Past 16-year returns from May 1, 2010, through April 30, 2026. Past 16-month returns from January 1, 2025, through April 30, 2026.
Source: FactSet, FTSE Russell, MSCI, S&P and AllianceBernstein (AB)

It’s human nature to allow familiar patterns to guide our decision-making processes. But it’s just as important to recognize when changing conditions warrant a rethink. Return patterns in global equity markets appear to be shifting in ways that should prompt investors to revisit their allocations.

For the past 16 years, US stocks have dominated global returns (Display). Since 2010, US large-cap growth stocks have risen well above the pack, returning a cumulative 1,011%, as investors rewarded high-quality businesses and technological innovation. Returns across the US equity markets dwarfed those of European, Japanese and emerging-market stocks.

Markets Have Flipped in 16 Months

Recent return patterns look markedly different. In the 16 months since January 2025, emerging-market equities surged by 53.8%, followed by European stocks with a 42.2% gain. US stocks have been left behind.

Why have markets shifted? Investors are asking more questions about whether artificial intelligence (AI) will deliver the profitability required to justify the high prices of technology stocks. AI is also fuelling capital intensity, with massive spending on technology infrastructure. Geopolitical tensions have intensified supply chain weaknesses, as the Middle East conflict triggered higher energy prices with cascading effects through industries and economies.

Taken together, these trends have supported equity markets outside the US, as well as value stocks, which have more exposure to physical world industries such as industrials, materials and energy. These “shorter-duration” market segments offer investors more exposure to near-term visible cash flows and earnings.

Capturing a Broader Equity Opportunity Set

No one can say with certainty that this reversal will last. Indeed, US growth stocks posted a strong month in April, and still have an important role to play in long-term allocations. But when market leadership narrows for long enough, investors can easily become overexposed to yesterday’s winners. With valuations elevated and US market concentration still extreme, we believe this may be the right moment to rebalance toward a broader opportunity set that includes value equities as well as non-US developed markets and emerging markets.

The views expressed herein do not constitute research, investment advice or trade recommendations, do not necessarily represent the views of all AB portfolio-management teams and are subject to change over time.

MSCI makes no express or implied warranties or representations, and shall have no liability whatsoever with respect to any MSCI data contained herein. The MSCI data may not be further redistributed or used as a basis for other indices or any securities or financial products. This report is not approved, reviewed or produced by MSCI.