高盛闭门会-全球市场26展望，牛市广度扩大地区因子行业，有利于主动选股和多元化策略

Investment Rating - The report indicates a positive outlook for global markets, suggesting that investors should maintain stock allocations while diversifying to hedge against high valuation risks [6][13]. Core Insights - Global stock markets are experiencing broad gains, with the Spanish market up nearly 70% in USD terms, indicating a significant geographical and sectoral expansion in market performance [1][2]. - The current high valuation levels, particularly in the US market with a P/E ratio exceeding 22, suggest that future returns will primarily stem from earnings growth rather than valuation expansion [3][4]. - Earnings growth expectations for 2026 are optimistic, with the US projected to achieve a 12% increase in earnings, driven by margin improvements and the growth of the technology sector [5][7]. Summary by Sections Market Performance - The report highlights that 2025 has seen a more diversified market performance, with technology and AI sectors standing out, and for the first time since the financial crisis, most major stock markets have outperformed the US [2][8]. - The geographical breadth of market performance is expanding, with value stocks in Europe outperforming the market while US growth stocks regain dominance [3][10]. Earnings Growth Expectations - The report anticipates strong earnings growth across regions in 2026, with the US expected to benefit from margin improvements and a robust technology sector [5][7]. - European markets, despite current profit weaknesses, are expected to improve as the euro strengthens against the dollar and energy sector impacts diminish [5]. Investment Strategies - Investors are advised to diversify their portfolios to mitigate high valuation risks while maintaining stock allocations, as global markets are catching up to the US, presenting new opportunities [6][13]. - The report emphasizes the importance of diversification across geography, factors, and sectors to optimize risk-adjusted returns, especially in light of the concentration risk posed by a few leading companies in the US market [12][13].