📊 Daily Gainers & Losers — Sep 18, 2026

📚 Past 3 days: 16 Sep · 15 Sep · 14 Sep

83/83 tickers with data

• 🟢 SNDK (Memory) +10.99% — $1,791.82 — S&P 100 index inclusion effective Sep 21 drove index-buying demand; storage sector momentum
• 🟢 AAOI (Networking/Optical) +7.25% — $105.17 — Record Q2 revenue (+86% YoY); China manufacturing expansion; pre-ECOC optical networking catalyst
• 🟢 COHR (Networking/Optical) +7.22% — $317.36 — Expanded pluggable optical line system portfolio for AI datacenter networks
• 🟢 LRCX (Semi Equipment) +6.98% — $288.11 — Announced 27% dividend increase + $3B global lab network expansion; AI wafer-fab equipment demand
• 🟢 STX (Memory) +6.93% — $858.79 — Storage sector surge alongside SNDK; analyst target raised to $900

• 🔴 QCOM (Mobile/Wireless) -5.82% — $177.72 — Profit-taking unwinds past month's 12% rally; positioning-driven selling while AI-chip stocks rallied
• 🔴 BE (Industrial/Heavy Equipment) -5.39% — $265.63 — Continued pullback from June highs; securities class-action lawsuit overhang; valuation reassessment after 40%+ YTD run
• 🔴 NFLX (Consumer/Media) -4.67% — $71.79 — Wells Fargo downgrade citing "worrying" engagement trends; fourth straight session of losses; -30% YTD
• 🔴 SPOT (Consumer/Media) -3.67% — $509.45 — Broad consumer/media weakness; $98.9M insider selling over past 12 months; -30.6% over past year
• 🔴 DELL (Hardware/OEM) -3.46% — $568.06 — Profit-taking after 30%+ single-session AI-earnings rally; AI server margin concerns resurface ahead of fiscal Q2 report