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Citi Downgrades United Microelectronics (UMC) to Sell

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StreetInsider.com Top Tickers, 10/21/2026

1. SPCX
2. NVDA
3. NFLX
4. ISRG
5. RTX

6. COF
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Top News Most Read Special Reports

• Nasdaq leads gains as SpaceX, Super Micro results improve AI appetite
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• AI bubble about to burst? Not yet, Yardeni says

• Abbott plans to spin off its nutrition unit as a standalone public company
• Supermicro raises Q1 FY2027 revenue outlook on AI demand
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• After-Hours Movers: NFLX, SPCX, SMCI, ISRG, COF, UAL, PEGA
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