Core Viewpoint - UBS has downgraded the rating of U.S. stocks in a fully invested global equity portfolio to "benchmark" due to concerns over a weakening dollar, high valuations, and increasing risks from Washington's policy instability [1][2]. Group 1: Dollar Risks - The primary concern highlighted by UBS is the risk associated with the dollar [1][2]. - UBS forecasts that by the end of the first quarter, the euro will rise to 1 euro = 1.22 USD, indicating a significant shift in currency dynamics [1][2]. - The bank notes that historically, when the trade-weighted dollar index declines by 10%, U.S. equities tend to underperform by approximately 4% on a non-hedged basis [1][2]. Group 2: Market Performance - Due to the weakening dollar and lower valuations attracting capital overseas, foreign markets have significantly outperformed the U.S. this year [1][2]. - The MSCI World Excluding U.S. Index has increased by about 8% within 2026, while the S&P 500 Index has remained nearly flat [1][2].

Core Insights - The market has seen increased volatility and trading activity on Fridays due to unexpected policy announcements from former President Trump, leading to a shift in trading strategies among investment managers [1][2]. Group 1: Market Activity Changes - Fridays have transformed from a quiet trading day to one of the busiest, as investment managers prepare for potential weekend announcements that could impact markets [1]. - Barclays analysis indicates that the cost of trading high-grade corporate bonds on Fridays is now 31% higher than at other times, reflecting increased demand for portfolio adjustments [1]. - Trading volume of investment-grade corporate bonds on Fridays has risen to 18% of weekly trading volume, up from 16% in 2023 and 2024 [1]. Group 2: Impact of Policy Announcements - Since Trump's return to the White House, market activity has become more unpredictable, with significant fluctuations in stock trading volumes, particularly a 42% increase in Friday trading [2]. - Recent policy announcements regarding trade have led to substantial market movements, including a 3.3% rise in the S&P 500 and a return of the Nasdaq 100 to a bull market [2]. - Investment managers are increasingly focused on reducing portfolio risk before weekends, as evidenced by strategies to sell credit and buy government bonds [2]. Group 3: Trading Dynamics - The rise of electronic and portfolio trading has accelerated trading patterns, allowing investors to execute trades more quickly on Fridays [3]. - Despite increased trading speed, transaction costs have not decreased, leading to a frantic trading environment as managers are forced to sell what they can rather than what they want [3]. - The Trump administration has announced over 50 new or revised tariff policies since January 20, contributing to market uncertainty and volatility [4].