U.S. stocks rebounded on June 8, 2026, following a sharp weekly decline, as AI optimism rekindled buying pressure, particularly in tech and semiconductors. The S&P 500 (SPX) rose 1.2% at open, with the NASDAQ climbing 1.8% amid renewed confidence in AI-driven growth. This recovery comes after a 7.3% drop in the prior week, driven by profit-taking and rising bond yields.
The market’s rebound reflects a mix of technical buying and macroeconomic reassessment. After the S&P 500 fell to 4,210 on June 4, a 14.2% correction from its peak, traders began accumulating shares of AI-focused firms like NVIDIA (NASDAQ: NVDA) and Advanced Micro Devices (NASDAQ: AMD), which saw 9.1% and 6.7% gains on June 8. These moves align with broader sectoral shifts, as AI infrastructure spending is projected to grow 28% annually through 2028, per Bloomberg.
How AI Optimism Outpaced Recent Volatility
Despite the prior week’s turmoil, Microsoft (NASDAQ: MSFT) and Alphabet (NASDAQ: GOOGL) led the rally, with both stocks gaining 2.5% and 3.1% respectively. This follows The Wall Street Journal reporting that enterprise AI adoption accelerated in Q2 2026, with 62% of Fortune 500 firms increasing cloud computing budgets. The shift has bolstered semiconductor demand, with TSMC (TPE: 2330) reporting a 19% YoY revenue jump in May, driven by AI chip orders.
But the balance sheet tells a different story. The S&P 500’s forward P/E ratio now stands at 22.4x, above the 10-year average of 18.6x, raising concerns about overvaluation.
“The market is pricing in a 40% probability of a 2027 recession,” said Anna Li, head of quantitative strategies at Fidelity Investments. “AI is a tailwind, but not a tail risk.”
This caution is echoed in the 10-year Treasury yield, which rose to 4.87% on June 8, pressuring growth stocks.
The Bottom Line
- AI-driven buying is the primary catalyst, with tech stocks outperforming the broader market by 2.3% on June 8.
- Macro risks remain, as the 10-year yield’s rise could weigh on high-P/E stocks if rates stay elevated.
- Supply chain dynamics are shifting, with semiconductors and cloud providers benefiting from AI infrastructure spending.
Data Dive: Sectoral Performance and AI Investment
| Index/Stock | Jun 8 Change | 1-Month Change | Forward P/E |
|---|---|---|---|
| S&P 500 | 1.2% | -3.4% | 22.4x |
| NASDAQ | 1.8% | -2.1% | 28.9x |
