UBS Downgrades U.S. Stocks to "Benchmark" Amidst Growing Dollar, Valuation, and Policy Risks

UBS’ top equity strategist has significantly tempered his outlook on U.S. stocks, downgrading American equities to a "benchmark" weighting within a fully invested global portfolio. Andrew Garthwaite, head of global equity strategy at the investment bank, cited a confluence of mounting risks, including a weakening dollar, stretched valuations, and persistent policy turbulence emanating from Washington, as factors contributing to the erosion of the long-standing outperformance of U.S. equities.

A central tenet of Garthwaite’s revised view is the increasing risk posed by the U.S. dollar. UBS forecasts the euro to appreciate to $1.22 by the close of the first quarter, indicating a belief in significant "asymmetric structural downside risks" to the greenback. Historically, the investment bank’s analysis indicates that a 10% decline in the dollar’s trade-weighted index has typically resulted in U.S. equities underperforming their global counterparts by approximately 4% when unhedged. This currency dynamic is already manifesting in the current market, with foreign markets outperforming the U.S. in 2026. Capital is reportedly flowing overseas, drawn by both a weaker dollar and more attractive valuations abroad.

The performance disparity is stark. The MSCI World ex-US index has registered gains of roughly 8% year-to-date in 2026, a stark contrast to the largely stagnant performance of the S&P 500, which has remained little changed. This trend is further underscored by the robust rallies seen in other major international indices. Japan’s Nikkei 225 has surged by an impressive 17% year-to-date, while the Stoxx Europe 600 has climbed 7%. This sharp rotation away from American equities highlights a significant shift in investor sentiment and capital allocation. U.S. stocks continued to face headwinds on Friday, as investors grappled with concerns surrounding the potential downsides of widespread artificial intelligence adoption and the persistent challenge of inflation within the domestic economy.

Beyond currency headwinds, UBS points to the diminishing impact of corporate buybacks as another factor contributing to the weakening support for U.S. stocks. The buyback yield in the U.S. is now reportedly on par with global peers, a significant departure from its previous role as a key driver of earnings per share growth and investor inflows. The combined shareholder yield, encompassing both dividends and buybacks, in the U.S. is now estimated to be approximately half that of Europe. Garthwaite articulated this shift, stating, "The buybacks yield is no longer exceptional and this had been an important driver of funds flow, EPS and valuation." This diminishing attractiveness of U.S. corporate capital return strategies removes a crucial pillar that had supported the equity market for years.

Valuations also present a significant concern, adding to the overall unease surrounding U.S. equities. UBS’ calculations reveal that the sector-adjusted price-to-earnings ratio for U.S. stocks currently stands at a substantial 35% above that of international peers. This premium is considerably wider than the average premium of approximately 4% observed since 2010. The strategist further noted that roughly 60% of U.S. sectors are trading not only at higher multiples than their global counterparts but also above their own historical valuation premiums. This suggests that a significant portion of the U.S. market may be overvalued relative to both international markets and its own historical norms.

Adding another layer of complexity and uncertainty, policy volatility under the current administration has emerged as a notable headwind. This year has witnessed a series of policy shifts, including adjustments to tariff policies, proposals aimed at capping credit-card interest rates, potential limitations on private equity investment in the housing sector, renewed scrutiny of drug pricing, and suggestions to curb dividends and buybacks specifically for defense companies. This unpredictable policy environment creates an atmosphere of uncertainty that can deter investment and dampen market sentiment.

Despite these considerable headwinds, the strategist stopped short of advocating for an outright bearish stance on U.S. equities. Garthwaite acknowledged that the U.S. economy and its stock market historically tend to benefit more than their global peers during the nascent stages of a potential bubble formation. Furthermore, UBS anticipates that the adoption of artificial intelligence will outpace most other major regions, with the potential exception of China. This projected AI surge is expected to provide a tailwind for sustained earnings growth across key industries within the U.S.

In terms of specific market outlooks, UBS strategist Sean Simonds has set a year-end target of 7,500 for the S&P 500. This forecast falls slightly below the average forecast of 7,629 compiled from 14 top strategists, as reported in CNBC Pro’s recent strategist survey. This indicates that while UBS has tempered its view, its target remains within the broader consensus range, albeit on the more conservative side. The confluence of a weakening dollar, less attractive buyback yields, stretched valuations, and policy uncertainty presents a complex landscape for U.S. equities, prompting a reassessment of their previously dominant position in global portfolios.