机构警告：2026年美股前景乐观，仍需警惕八大关键风险

Core Viewpoint - Wolfe Research analysts express a positive outlook for economic growth and stock market returns in 2026, while highlighting several key risks that could disrupt current market momentum [1] Group 1: Key Risks - Increased retail investor participation since the COVID-19 pandemic may lead to greater market volatility and a higher likelihood of rapid pullbacks [1] - The current low spreads in high-yield bonds could make investors complacent about risk, and a return of volatility might disrupt capital market activities [1] - The potential for a bubble in the AI sector is noted, driven by significant AI spending and reliance on external capital through debt, which raises long-term concerns [1] - The unsustainable trajectory of the U.S. fiscal deficit is alarming, with debt-to-GDP ratios expected to exceed historical highs, and policymakers may underestimate future interest cost impacts [1] - Credit issues and the spread of bankruptcies could act as catalysts for economic and stock market downturns, especially following notable bankruptcies in 2025 [1] - Increased leverage among multi-strategy hedge funds, combined with relaxed financial regulations, may exacerbate market declines during downturns [1] - A significant weakening in the labor market, indicated by negative non-farm payroll data or soaring unemployment rates, could lead investors to believe the Federal Reserve is lagging in policy adjustments, negatively impacting the stock market [1] - Geopolitical tensions and global monetary policy divergences, such as U.S. military actions in Venezuela and unexpected policy changes from the Bank of Japan, could trigger chain reactions in global markets [1]