Despite persistent worries about AI bubble and overvaluation, global funds flooded into US stocks at an unusual scale in Q2 2026. According to Bloomberg data, net inflows exceeded $120 billion, the highest since Q1 2023. This stands out amid economic divergence between Europe and the US and rising geopolitical risks. Why do investors still stick with US stocks? This article provides an in-depth analysis from three dimensions: fund flows, earnings support, and policy environment.
Structural Characteristics of Inflows: Tech Stocks Still the Main Magnet
From breakdown data, about 70% of funds flowing into US stock funds in Q2 went to tech-themed funds represented by the Nasdaq 100. The combined market cap of the five tech giants—Apple (AAPL), Microsoft (MSFT), Google (GOOGL), Amazon (AMZN), and Nvidia (NVDA)—exceeded $12 trillion, accounting for over 25% of the S&P 500 total. Despite regulatory pressures, the high growth driven by AI commercialization remains irresistible to global capital. For example, Nvidia's Q2 FY2026 revenue is expected to grow 65% YoY, with data center business consistently beating expectations; Microsoft Azure cloud revenue growth remains above 30%. These numbers make the 'overvaluation' argument pale in the face of earnings.
Chinese Concept Stock Rebound: A Reversal Signal?
Notably, Q2 also saw a significant rebound in inflows into Chinese concept stock ETFs. For example, KWEB (China Internet ETF) had net inflows exceeding $4 billion in Q2, a near two-year high. This contrasts sharply with 2025, when such stocks faced massive sell-offs due to US-China audit standoffs. The backdrop for the rebound: a new audit cooperation agreement reached in spring 2026, plus large share buybacks and dividends by Chinese internet giants (Alibaba, Pinduoduo, etc.) to boost shareholder returns, re-attracting global capital. This also confirms the inclusiveness of the US stock market—investors of all styles can find suitable targets.
Why Not Europe or Emerging Markets?
From a global cross-section, the US stock advantage lies in the balance between 'certainty' and 'growth.' In H1 2026, European stocks were dragged by energy crisis and recurring inflation, with the Stoxx 600 up only 2.3%; the MSCI Emerging Markets index returned less than 4% due to currency volatility and capital controls in some countries. In contrast, the S&P 500 rose 8.7% in H1, and the Nasdaq rose 12.1%. More importantly, the VIX has remained below 20 for an extended period, offering pension and sovereign funds low-volatility environments with excess return opportunities.
Fed Policy: From Tightening to Tolerance
Another key variable is the Fed's monetary policy path. Although the June 2026 FOMC meeting kept rates at 5.25%-5.5%, the dot plot showed the probability of a rate cut within the year dropping from 40% at the start to 15%. This 'higher for longer' expectation actually stabilized the market: investors realized that the Fed's tolerance for high rates presupposes no recession risk. Indeed, US Q2 2026 GDP annualized growth was 2.8%, unemployment remained low at 3.6%, and consumer spending remained strong. Earnings resilience gradually faded the 'recession narrative,' while high rates accelerated capital concentration in quality leaders—precisely the biggest allure of US stocks.
Sector Rotation: From AI to 'AI in Everything'
Fund inflows were not blindly chasing highs. Clear sector rotation emerged within US stocks in Q2: besides AI hardware stocks (e.g., Nvidia, AMD), AI-enabled application software, healthcare, and fintech also attracted substantial capital. For instance, Schrödinger (SDGR), an AI-driven drug discovery platform, saw its stock rise 80% in Q2; Upstart (UPST), which uses AI for credit risk assessment, rose over 60%. This shows investors moving from 'buying concepts' to 'buying implementation,' seeking companies where AI truly enhances efficiency and profits. This broad tech-driven rally also brought more balanced returns for index fund investors.
Risk Warning: Don't Ignore Black Swans
Of course, no investment can ignore risks. The biggest threats to US stocks currently are geopolitical tensions (e.g., Taiwan Strait issues, US-EU trade frictions) and policy uncertainties from the November midterm elections. Additionally, implied tail-risk premiums in the options market quietly rose at the end of Q2, indicating some institutions hedging against extreme declines. Therefore, we recommend investors maintain moderate diversification in US stock positions, adding some defensive sectors (e.g., utilities, healthcare) and gold ETFs to balance volatility.
Conclusion: US Stocks Remain the Cornerstone of Global Assets
In summary, Q2 2026 fund flows clearly show that among global investment choices, US stocks remain the core option for global asset allocation due to their market size, liquidity, corporate earnings capacity, and institutional robustness. Whether pursuing growth tech stocks, stable dividend value stocks, or high-beta Chinese concept stocks, the US market offers rich layers. For investors in Hong Kong and Taiwan, participating in this market via US stock accounts or cross-border ETFs not only shares in the growth dividends of the world's best companies but also effectively diversifies single-market risk. That is why—even amid ongoing global economic uncertainty—the reasons to buy US stocks remain strong.
(The views in this article are for reference only and do not constitute investment advice. Investment carries risk. Enter the market with caution.)
