U.S. stocks have underperformed global rivals this year — 3 reasons why fortunes could reverse

Barclays says the S&P 500 has lagged Europe and Asia in 2026, but sees three tailwinds for U.S. equities: stronger ability to absorb the Strait of Hormuz energy shock, continued earnings momentum, and cheaper valuations. The S&P 500 is up 3% year-to-date versus 15% for Japan's Nikkei 225 and 49% for South Korea's Kospi, while U.S. equity funds have still جذب more than $100 billion in inflows this year. The bank also notes Big Tech looks cheaper versus its own history, suggesting room for a reversal if sentiment improves.

Analysis

The key setup is not that U.S. equities are suddenly cheap in absolute terms, but that the relative underperformance has created a cleaner factor map: crowded non-U.S. cyclicals now face more obvious macro fragility if energy stays elevated and global growth softens. That favors U.S. balance sheets, domestic demand, and firms with pricing power over export-heavy Europe and Asia, where the first-order hit from higher oil tends to transmit faster into margins and revisions.

The more interesting second-order effect is that the market’s prior rotation away from U.S. mega-cap tech may have gone far enough that any stabilization in rates or earnings revisions can trigger an aggressive re-concentration trade. If the top cohort is now cheaper versus its own history while broader U.S. valuations have compressed, the asymmetric move is not broad beta but leadership reassertion—especially in names with durable free cash flow and AI-linked capex optionality.

The biggest counterpoint is timing: this is a reversal trade, not a valuation call, and reversal trades can be early by multiple months. A sustained oil shock or another leg higher in Treasury yields would keep pressure on Europe and APAC first, but also cap U.S. multiples and delay the catch-up. So the highest-conviction expression is not an outright index bet; it is a relative long in U.S. quality/growth versus ex-U.S. cyclicals, with an eye on earnings revision breadth over the next 4-8 weeks.

Consensus is missing how much of the non-U.S. outperformance was driven by a temporary de-rating of U.S. positioning rather than a durable improvement abroad. If U.S. fund inflows remain strong, that creates a reflexive support loop: better flows support the index, which supports sentiment, which narrows the earnings-per-share leadership gap further. That means the risk is less about missing a macro bounce and more about being short the unwind of a positioning extreme.

Key Decisions for Investors

• Go long QQQ vs short EFA for a 1-3 month relative-value rebound trade; target a 4-6% spread move if U.S. earnings revisions stabilize, with stop-loss if ex-U.S. revisions continue to improve for two consecutive earnings cycles.
• Add to SMH on weakness and pair against a basket of Europe industrials/exporters; the setup favors U.S. semi/AI capex beneficiaries if the market rotates back toward growth leadership, with asymmetric upside over 6-12 weeks.
• Buy call spreads in XLF or KBE only on a clear turn higher in U.S. financial revision trends; avoid outright longs until rate volatility settles, because the sector is still a rates-beta expression rather than a pure fundamentals trade.
• Use IWM as a tactical long against SPY only if domestic growth data re-accelerates; small caps have already demonstrated relative strength, but this trade is more vulnerable to funding stress and should be time-boxed to 4-6 weeks.
• For hedging, maintain a small short basket in EWJ/FEZ against U.S. longs if oil spikes again; Europe and Japan remain the most exposed to imported energy pressure, so this hedge should perform in a renewed geopolitical shock.