Mainland stocks posted their biggest one-day gain in three months on Thursday as chip shares sharply rebounded from a recent selloff, with anticipation building around a memory chip major's listing.

In Hong Kong, the benchmark Hang Seng Index dropped 169 points, or 0.7 percent, to end the day at 24,030 on turnover of HK$377.25 billion.

The tech index was virtually unchanged at 4,731 while the China Enterprises Index fell 86 points, or 1.1 percent, to 7,997.

Up north, the benchmark Shanghai Composite Index closed up 65 points, or 1.65 percent, at 4,036 points. The blue-chip CSI300 Index ended 2.5 percent higher, its largest one-day jump since April 8.

The Shenzhen Component Index was 459 points, or 3.07 percent, higher at 15,398 while the ChiNext surged 172 points, or 4.49 percent, to 4,018.

Semiconductor shares closed 8.8 percent up, after memory-chip maker Changxin Memory Technologies said it would start book-building on July 15 for its planned Shanghai IPO, which aims to raise 29.5 billion yuan. It is the world's fourth-largest dynamic random access memory maker with approximately 7.7 percent market share in 2025.

GigaDevice, a shareholder of Changxin Memory, jumped 10 percent, snapping a seven-session losing streak, while graphic processing unit designer Moore Threads surged 14 percent.

The tech-focused Star50 index jumped 8.4 percent, its steepest one-day gain in nearly a year.

In Tokyo, the Nikkei share average rebounded almost 925 points, or 1.38 percent, to 67,743 after a three-day losing streak, as AI-related shares such as Kioxia, Advantest and Tokyo Electron surged in tracking gains in the US technology sector.

The broader Topix rose nearly 14 points, or 0.4 percent, to 4,020.

In Seoul, the Kospi too rebounded with a rise of 45 points, or 0.62 percent, to 7,291 from a seven-week low hit in a volatile session that saw the benchmark swing between gains of 4.1 percent and losses of 2.5 percent. (Reuters & Xinhua)


Edited by Aaron Tam