Asian markets rally as Wall Street records lift tech stocks

Stock markets across Japan and South Korea surged on August 5, as investors responded to a record-setting session on Wall Street the previous day. South Korea's Kospi climbed 4.51% to trade at 6,645.71 points, while Japan's Nikkei 225 rose 2.66% to 65,657.03 points, according to TradingKey.tradingkey

The rally followed a powerful session in the United States on Tuesday, August 4, when the S&P 500 surged 1.79% to close at a record high of 7,737 points and the Dow Jones Industrial Average soared more than 900 points to close above 54,000 for the first time, according to CNN. The Nasdaq Composite rose 2.6% during the session, though it remained about 2% below its early June record.cnn

Semiconductor Stocks Lead the Charge

The gains in Asia were driven by tech and memory chip stocks. SK Hynix ↗ 8.17% rose 7.10% to 1,689,000 won, Samsung Electronics climbed 4.17%, while Japan's Kioxia jumped 7.03% and SoftBank surged 9.22%.tradingkey

In the U.S. overnight session, semiconductor stocks had rallied broadly, with Arm ↗ 17.36% surging over 17%, Intel ↗ 10.84% and SanDisk Western Digital Corporation ↗ 4.05% rising over 10%, and Micron Technology ↗ 7.62% gaining 7.62%.tradingkey

Memory Industry Catalysts

The sector's momentum was reinforced by industry developments announced on August 4. SK Hynix and SanDisk jointly released the first set of High Bandwidth Flash standard specifications through the Open Compute Project, establishing a unified framework for next-generation AI server memory. The specification supports capacities up to 512 gigabytes with bandwidth grades ranging from 0.4 to 3 terabits per second.eetasia+1

Separately, Kioxia and SanDisk announced a new generation of quad-level cell 3D NAND flash memory technology with bit density improvements of up to 60% over their previous generation. These announcements collectively strengthened expectations for memory industry upgrades and fueled risk appetite across Asian semiconductor equities.tradingkey