Key facts
- Zhongji Innolight is now the largest constituent of China's CSI 300 Index.
- The company supplies optical modules to US hyperscalers.
- Its weighting on the CSI 300 Index reached 5% on Friday.
The artificial intelligence boom has propelled Zhongji Innolight, a key supplier of optical modules to major US technology companies, to become the largest component of China's CSI 300 Index. As of Friday, the company held a 5% weighting in the benchmark, which tracks the 300 most valuable stocks listed on the Shanghai and Shenzhen exchanges. This development underscores the substantial influence of AI on the Chinese stock market, the world's second-largest. The northern Shandong province-based company's increased weighting highlights AI's profound impact on the world's second-largest equity market.