China's A-Share Three Major Indices All Drop Over 1%, STAR 50 Plunges Over 3%
N.R. Finch
On July 21 all three A-share benchmarks fell more than 1%, with the STAR 50 sliding over 3% as computing-power and chip stocks led losses — financials and baijiu rose, marking a clear style rotation.
A morning rally reversed — what happened?
A-shares opened higher; the ChiNext briefly gained over 1%, then the move fully unwound.
At time of writing, the Shanghai Composite was down 1.11%, the Shenzhen Component 1.38%, and ChiNext 1.44%.
The STAR 50 fell more than 3%, the deepest drop among broad-based indices. This means → capital is pulling out of tech-growth names in a concentrated way.
Why did tech stocks take the hardest hit?
Computing-hardware and chip-semiconductor sectors led the decline, dragging the broader indices down.
Fiber-optic names fell the most: Yangtze Optical Fibre and Tongding Interconnection hit the daily limit down; Changyingtong dropped over 10%; Hengtong Optic-Electric and Zhongtian Technology followed.
Semiconductor-materials stocks fell in tandem: YouYan Silicon briefly hit the 20 cm limit down; Zhengguang and CSSC Gas each dropped over 10%. In plain terms = the selling ran from fiber optics to chip materials — the entire tech-hardware chain moved down together, not just isolated names.
Who bucked the trend?
Financials, autos, and baijiu rose against the tape, sharply diverging from tech. This reflects a clear structural split — money rotating from high-valuation tech into lower-valuation defensive sectors.
The computing-power-leasing theme rebounded from lows; Zhongjia Bochuang posted its third limit-up in five days; Litong Electronics and Yangdian Tech followed.
Multiple catalysts on the news side: Kimi suspended new consumer subscriptions due to tight compute; Meta reportedly plans to lease computing power to Anthropic under a contract worth up to $10 billion; China's MIIT said it will issue guidelines for a computing-power standards framework.
How did Hong Kong and bonds trade?
Hong Kong stocks leaned higher: the Hang Seng rose 0.15% and the Hang Seng Tech Index gained 0.51%; AI large-model names rebounded, with Zhipu up 7%.
Chip stocks, however, fell in step with their A-share counterparts. This means → selling pressure on chips is cross-market, not just an A-share sentiment issue.
Treasury futures mostly rose — the 10-year benchmark gained 0.01%, while the 30-year dipped 0.02% — a modest tilt toward safe-haven assets.
What signal is the commodity market sending?
China commodity futures fell broadly: lithium carbonate plunged over 6%, coke and coking coal dropped over 2%, rebar and iron ore each fell more than 1%.
Precious metals held firm; Shanghai silver rose over 1%. In plain terms = industrial commodities down, precious metals up — the market is pricing in weaker growth expectations and rising risk aversion.
Whether the tech theme can stabilize during the upcoming wave of interim-result disclosures will be the key checkpoint for gauging the depth of this correction.
Content is for reference only, not financial advice.