Stock futures edged higher as S&P 500 hits record closing highs, with tech-driven momentum lingering amid muted early trading. Market participants await clarity on Fed policy and corporate earnings, while AI optimism and Micron’s $1 trillion valuation reshape sector dynamics.
The S&P 500 closed at a new all-time high on May 26, 2026, rising 0.8% to 5,012.34, driven by gains in the Nasdaq Composite, which surged 1.2% to 15,432.11. WSJ reported that AI-related stocks, including NVIDIA (NASDAQ: NVDA) and Advanced Micro Devices (NASDAQ: AMD), accounted for 23% of the S&P 500’s gains, with Micron Technology (NASDAQ: MU) surging 9.7% after joining the $1 trillion market cap club. However, stock futures for the S&P 500 opened flat at 5,015.20, reflecting cautious sentiment ahead of the Fed’s June policy meeting.
How AI Optimism Outpaces Inflation Concerns
The tech sector’s outperformance masks broader economic fragility. While the S&P 500’s 12-month forward P/E ratio stands at 22.4x, the same metric for the Dow Jones Industrial Average is 18.9x, signaling divergent investor appetites. Bloomberg notes that AI spending is projected to grow 37% annually through 2028, with tech firms capturing 62% of global corporate R&D budgets. This dynamic has pressured traditional industries, as General Electric (NYSE: GE) and United Technologies (NYSE: UTX) both reported 4% revenue declines in Q1 2026, according to Reuters.
“The market is pricing in a soft landing, but the disconnect between tech and non-tech earnings is alarming,” said James Chen, chief investment officer at Tocqueville Asset Management. “If AI fails to deliver productivity gains, the S&P 500’s 22x multiple could unravel rapidly.”
The Micron Effect: Supply Chain Rebalancing
Micron’s $1 trillion valuation—achieved after a 22% surge in 2026—has ripple effects across the semiconductor supply chain. ASML Holding (NASDAQ: ASML), a key vendor for Micron’s 5nm chip production, saw its shares rise 6.3% on May 26, while Applied Materials (NASDAQ: AMAT) gained 4.1%. However, Investopedia highlighted that smaller chipmakers, like Advanced Energy Industries (NASDAQ: AEIS), face margin compression due to pricing pressures from Micron’s scale.
| Company | 52-Week High | Market Cap | EV/EBITDA |
|---|---|---|---|
| Micron Technology (NASDAQ: MU) |
