Stocks in China, Hong Kong slip as investors eye Jackson Hole, Mideast tensions

China and Hong Kong stocks slipped on Tuesday as investors kept a close eye on Middle East tensions and anticipated fresh policy hints from the upcoming Jackson Hole symposium. The Shanghai Composite index edged down 0.1%, while the blue-chip CSI300 index dropped 0.5%. The Shenzhen index fell 0.3%, and the ChiNext Composite index saw a 1.43% decline, with the tech-focused STAR50 index easing 0.64%.

Among the losers were non-ferrous metal shares, which plunged 3.5% after gold prices retreated. Federal Reserve Chairman Kevin Warsh's maiden speech at the Jackson Hole conference this week, emphasizing the choice between near-term policy or broader principles, has gained significance as traders and analysts seek guidance on the recent surge in bond yields and reassurance of his independence from the Trump administration.

Iran's promise to retaliate against expanded US sanctions, asserting that major trading partners would resist Washington's pressure campaign, added to geopolitical tensions. A significant 45% drop in shares of Unitree, China's leading humanoid robot maker, since its Shanghai debut has sparked concerns about bubble risks, retail investor losses, and flaws in China's IPO system.

Morgan Stanley analysts noted that potential catalysts may emerge in mid-September, citing improving US-China ties ahead of President Xi's US visit, expectations of further fiscal stimulus in China, and upcoming AI-related updates from major Chinese tech firms.