US Stock Market: S&P 500 Near Record as SanDisk and Chipmakers Surge Up to 8%

The Quick Take

• S&P 500 traded near record highs and Nasdaq gained as chipmakers including SanDisk surged up to 8%.
• Dow Jones Industrial Average lagged slightly while semiconductor stocks drove the broad technology advance.
• The chipmaker rally reflects continued AI infrastructure spending confidence and improving semiconductor supply dynamics.

US equity markets maintained momentum near record territory as semiconductor stocks — led by SanDisk and other chipmakers posting gains of up to 8% — powered the Nasdaq higher while the Dow Jones Industrial Average marginally underperformed. The divergence between the Nasdaq's semiconductor-driven gains and the Dow's slight lag reflects the ongoing rotation dynamic in US equities: AI and semiconductor supply chain beneficiaries continue to attract institutional flows as the data center buildout cycle sustains elevated chip demand, while more economically sensitive Dow components face margin pressure from inflation and mixed consumer spending data.

The chipmaker rally carries specific implications for the semiconductor value chain. An 8% single-session move in SanDisk points to either a specific catalyst — earnings beat, analyst upgrade, or product announcement — or a sector-level re-rating triggered by positive data center capex signals from major cloud providers. Flash memory and NAND storage, where SanDisk is a major player, has been in recovery from an oversupply cycle that drove prices to multi-year lows in 2024-2025. A return to pricing power in NAND benefits the entire memory segment and positively impacts companies like SK Hynix, Samsung, and Micron whose memory revenue has been recovering on similar supply rationalization.

Indian investor interest in US market moves is particularly acute around semiconductor developments given Indian IT services companies' exposure to technology sector spending and the relevance of global chip supply chains to India's own semiconductor manufacturing ambitions. Forward signals include quarterly guidance from major cloud providers — Amazon, Microsoft, Google — on data center capital expenditure, which would provide visibility into sustained chip demand. NAND pricing trends in the spot market and contract negotiations for Q4 will determine whether the current chip stock rally has multi-quarter fundamental backing or is an anticipatory move subject to pricing reality check.

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