Chip Stocks Just Had Their Second-Worst Day on Record
The PHLX Semiconductor Index fell 12.25% on November 5, 2026, its second-worst day on record. iShares Semiconductor ETF (SOXX) and VanEck Semiconductor ETF (SMH) also declined. Micron (MU) dropped 17.46%, Lam Research (LRCX) fell 16.36%, and NVIDIA (NVDA) decreased 9.26%. The selloff was driven by hedge fund profit-taking and regulatory concerns.
How this was made
The 30-second read
Why it matters
Sector‑wide pressure drove steep drops in memory and equipment stocks, while Nvidia’s relative resilience limited the decline of SMH.
Market read
The sharp sell‑off signals heightened risk for the semiconductor sector and may affect related ETFs and broader tech exposure.
What to watch
Regulatory uncertainty after the 2026 midterm elections could prolong the downside beyond pure capex concerns.
Background
The PHLX Semiconductor Index posted its second‑worst one‑day decline on record, falling 12.25% as investors priced in potential capex slowdown and regulatory risk.
Ticker impact
Micron Technology fell 17.46% to $656.39 as chip stocks slumped, indicating strong downside pressure on memory makers.
likely further pressure as investors reassess memory demand
The 17% decline is the largest move of the day and tied to sector‑wide risk, suggesting continued downside.
Lam Research dropped 16.36% to $185.20 after a month‑long slide, showing equipment makers are hit hardest.
downward bias likely to persist pending capex data
Heavy equipment exposure and a 16% fall signal continued weakness.
Nvidia fell 9.26% to $181.60, less than peers, cushioning SMH's decline.
moderate pressure, but less severe than memory/equipment stocks
A smaller drop suggests investors still value Nvidia's AI exposure.
iShares Semiconductor ETF (SOXX) closed down 12.15% at $131.90, the worst day since March 2020.
further downside likely if capex concerns remain
ETF mirrors the steep declines of its constituents.
VanEck Semiconductor ETF (SMH) fell 11.21% to $447.73, outperformed SOXX due to Nvidia weighting.
potentially less severe decline than broader chip index
Nvidia's relative strength cushions SMH, but overall sector risk stays high.
Market effects
Broad semiconductor sector faces heightened capex risk, pressuring equipment and memory makers.
U.S. chip stocks lead the decline, dragging related ETFs and potentially affecting global tech exposure.
The sell‑off may influence overseas chip manufacturers that track U.S. sentiment.
Counterpoint
If AI demand remains strong, the sell‑off could be a short‑term overreaction offering buying opportunities.
Key entities
- companyMicron Technology
Memory chip maker
- companyLam Research
Semiconductor equipment supplier
- companyNvidia
AI chip leader
