与“只追逐美国巨头”相比，多位顾问建议更强调分散化。文章给出的关键对比是，自2010年至今，S&P 500（含红利）累计上涨超过700%，科技股权重更高的Nasdaq 100接近1500%，而MSCI World ex-US指数约涨240%。与此同时，2026年前几周显示区域轮动：截至周四，S&P 500约涨1%，MSCI ex-US约涨9%。美元走弱增强了美国投资者对海外市场回报的吸引力。James Mayo（IronFjord Wealth Management）建议通过海外暴露分散政策、估值和监管差异，并提到可采用跟踪FTSE Global All Cap ex US指数的基金。文章还举例了Vanguard Total International Stock Index Fund（VXUS），其规模约为1450亿美元。
面对AI下的波动，顾问还提到“小盘与中盘补位”与固定收益双路线。Matt Sheers（Sheer Empowerment Financial）认为，小盘价值股历史上长期回报更高，往往在市场领导权扩散时受益；He建议参考CRSP US Small-Cap Value Index。Andrew Almeida（XY Planning Network）则偏好S&P MidCap 400中的更大盘企业，认为其盈利能力与资本获取能力优于小盘，并受益于AI基础设施支出增长。固定收益方面，2月美国国债上涨1.5%（含周内），而S&P 500同期下跌约0.3%（含红利），显示其防御价值。高评级美国公司债基金也持续获净流入（单文提及又有约40亿美元），而Jason McWilliams（JRM Tax & Wealth Management）指出，核心债券仓位在股票市场过于集中或投机化时具有关键支撑作用。
In both Chinese and global contexts, AI-related speculation has once again tested investor confidence: a dystopian scenario circulated by Citrini Research portraying mass unemployment from AI agents and an economic death spiral pushed the S&P 500 down 1% on Monday, with some cited firms falling even more. The move reflected growing unease toward the benchmark’s largest, AI-exposed constituents and broader questions on whether mega-cap tech can sustain current valuations. Despite criticism from major institutions, many retail investors are still reconsidering whether to reduce holdings in AI-sensitive equities or trim stocks more generally.
Advisors propose diversification across geography, size, and asset class. Since 2010, the S&P 500 is up more than 700% including dividends, and the tech-heavy Nasdaq 100 is up almost 1500%, while MSCI World ex-US is up only about 240%, indicating strong U.S. concentration. In early 2026, however, S&P 500 gains were about 1% through Thursday versus roughly 9% for the MSCI ex-US index (normalized to December 31, 2025 baseline), and a falling dollar has improved U.S. investors’ returns from foreign markets. James Mayo of IronFjord Wealth Management argues that international exposure reduces concentration risk from one cycle and cited the FTSE Global All Cap ex US Index approach. A practical vehicle highlighted was the Vanguard Total International Stock Index Fund ETF (VXUS), with about $145 billion in assets.
For those concentrated in mega-cap AI names, advisers also highlighted small- and mid-cap equities and fixed income. Small-cap value stocks are argued to offer stronger long-term return potential, while mid-cap firms in the S&P Midcap 400 are viewed as more profitable and better capitalized, with higher industrial exposure that could benefit from AI infrastructure spending. On the defensive side, bonds have shown resilience: Treasuries reportedly had their best month in a year, up 1.5% in February through Thursday, while the S&P 500 was down about 0.3% including dividends. High-grade U.S. corporate-bond funds have seen sizable inflows (around $4 billion mentioned), and Jason McWilliams of JRM Tax & Wealth Management says core fixed-income holdings matter when equity markets become over-concentrated or speculative.