Global Semiconductor Sell-off Dragged Down Indexes In China

Li Chen
19 Aug, 2026
Hong Kong

China's indexes faced significant challenges as a widespread selloff in semiconductor stocks heavily impacted investor sentiment. 

The Hang Seng Index edged up 0.2%, and the mainland-focused CSI 300 Index decreased 2.4% as elevated bond yields and rising oil prices further dampened mood. 

Global bond yields advanced amid worries of prolonged disruptions in energy supply in the Middle East, adding fears that inflation and borrowing costs may remain elevated for an extended period. 

Bond yields in New York, Europe, and Japan advanced on mounting concerns over massive government spending and persistent inflationary pressures. 

Japan's 10-year government bond yield advanced to 2.95%, the highest in three decades amid fiscal deficit worries and growing expectations of an imminent rate hike from the Bank of Japan. 

Germany’s 10-year Bund yield climbed above 3.25%, reaching its highest level since March 2011, and the UK gilt yield rose above 5.0%, reaching a high not seen since April 2008.  

The U.S. federal government debt crossed $40 trillion, a new record high, as lawmakers overlook the long-term consequences of rapidly rising overall debt and its impact on borrowing costs and pressure on the U.S. dollar. 

The yield on 10-year Chinese government bonds hovered near 1.67%, a multi-year low amid expectations that the weakening domestic demand growth may prompt Beijing and the People's Bank of China to enact new stimulus measures. 

 

China Indexes and Stocks 

The Hang Seng Index edged up 0.2% to 25,523.18, and the mainland-focused CSI 300 Index decreased 2.4% to 4,611.77. 

Tech stocks in Shenzhen and Shanghai led decliners, tracking losses in overnight trading in New York and overlooking strong earnings results. 

GigaDevice dropped 7.8% to HK $476.80 after the semiconductor company reported strong results in the first half. 

Revenue in the first half soared 178.7% to 11.6 billion yuan, while net income attributable to shareholders surged more than tenfold to 6.9 billion yuan. 

SMIC decreased 5.4% to HK $71.65, Hygon Information Technology declined 6.4% to ¥262.07, and Hua Hong Grace Semiconductor dropped 12.7% to HK $112.50.