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A-share optical fiber concept stocks fell in early trading, with Dongshan Precision down more than 9%, Yuanjie Technology, Changguang Huaxin, and Tianfu Communication down more than 8%, and Deco Technology and Guangku Technology following suit.

2026-08-05

A-share optical fiber concept stocks fell in early trading, with Dongshan Precision down more than 9%, Yuanjie Technology, Changguang Huaxin, and Tianfu Communication down more than 8%, and Deco Technology and Guangku Technology following suit.

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2026-08-05

Japan's Nikkei 225 closed Aug 5 up 2,342.91 pts (+3.66%) at 66,300.44; SoftBank +13%, Kioxia +4.8%. South Korea's KOSPI closed Aug 5 up 239.3 pts (+3.76%) at 6,598.25; KOSDAQ +2.41%; SK Hynix +5.77%, Samsung Electronics +2.5%.

Japan's Nikkei 225 closed Aug 5 up 2,342.91 pts (+3.66%) at 66,300.44; SoftBank +13%, Kioxia +4.8%. South Korea's KOSPI closed Aug 5 up 239.3 pts (+3.76%) at 6,598.25; KOSDAQ +2.41%; SK Hynix +5.77%, Samsung Electronics +2.5%.
2026-08-05

At the Future Memory & Storage conference in Santa Clara on Aug. 4, Samsung Electronics introduced a V10 Bonding V‑NAND (BV‑NAND) prototype with more than 400 layers using a new wafer‑bonding architecture. Samsung says BV‑NAND increases storage densi

At the Future Memory & Storage conference in Santa Clara on Aug. 4, Samsung Electronics introduced a V10 Bonding V‑NAND (BV‑NAND) prototype with more than 400 layers using a new wafer‑bonding architecture. Samsung says BV‑NAND increases storage density about 58% versus its V9 NAND while improving read, write and I/O performance to address AI system demand for higher‑capacity, more energy‑efficient memory. The company also presented concept models for zHBM and zNAND‑O that vertically stack memory on top of AI accelerators rather than beside them, shortening data paths, boosting bandwidth and improving power efficiency. Samsung says its wafer‑bonding approach could deliver more than 10x the density of conventional HBM5, roughly 3x the energy efficiency and over 50% lower thermal resistance.
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