24H | Storage Chip, Optical Stocks Fall with DRAM Down 6%; SanDisk Down 4%, Corning Down 3%. South Korean-Related ETFs Sink with KORU Down 14%

TigerJul 13, 2026 1:38 AM

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Storage chip, optical stocks fell in overnight trading. DRAM down nearly 6%; SanDisk down over 4%; Western Digital down over 3%.

Corning down nearly 3%; AAOI, Coherent, Astera Labs, Lumen Technologies, Lumentum down around 2%.

South Korean-related ETFs sank in overnight trading. Direxion Daily MSCI South Korea Bull 3x Shares plunged 13.7%; iShares MSCI South Korea ETF, Franklin FTSE South Korea ETF down over 4%.

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