24H | Memory-Chip, Optical Communications Stocks Extend Gains; SK hynix and Applied Optoelectronics Jump 6%

TigerSep 8, 2026 3:45 AM

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Memory-chip stocks extended gains in overnight trading. SK hynix rose 6%; Roundhill Memory ETF rose 5%; SanDisk snd Micron rose 4%; Western Digital and Seagate rose 3%.

Optical communications stocks also rallied in overnight trading. AXT rose 7%; Applied Optoelectronics rose 6%; Credo Technology, Lumentum, Semtech, POET Technologies, Ciena, and Coherent rose 3%.

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