CSI 300 Index — Level, Chart & Constituents

What the CSI 300 measures

The CSI 300 is a stock market index that tracks the performance of the 300 largest and most actively traded A-shares and B-shares listed on the Shanghai and Shenzhen stock exchanges. It is widely regarded as a barometer of the overall health of the Chinese mainland equity market. Because it spans a broad range of large-cap companies across multiple sectors, the CSI 300 is often used by investors to gauge the direction of the Chinese economy. Within the broader landscape of Asian-Pacific markets, it sits alongside regional peers such as the SET Index (Thailand), the S&P/ASX 200, and the Nikkei 225, offering a distinct lens on mainland Chinese corporate performance.

Key numbers explained

• 4,439.14 points is the current index level, representing the aggregate weighted value of all 300 constituent stocks at this moment.
• The -1.73% price change today shows the percentage decline from the previous trading session's close.
• Today's trading range of 4,439.14 – 4,500.2 points indicates the lowest and highest levels reached during the session.
• The 52-week range of 3,458.44 – 4,500.2 points shows the lowest and highest levels the index has reached over the past year.
• The index is denominated in CNY, meaning its level reflects the value of its components measured in Chinese yuan.
• The index is part of the Hang Seng TECH Index ecosystem of Asian tech-focused benchmarks, though it covers a broader set of large-cap stocks.

What to watch

When interpreting the CSI 300, investors typically monitor macroeconomic data releases from China, such as manufacturing PMI and trade figures, which can drive broad sector moves. Policy decisions by the People's Bank of China regarding interest rates and reserve requirements are also relevant, as they influence liquidity conditions for the large-cap companies in the index. Global risk sentiment, particularly shifts in the Straits Times Index (STI) or SET50, can spill over into Chinese equities. Sector rotation within the index, especially between financials and consumer discretionary stocks, is another factor to observe. For those tracking the wider Asian-Pacific region, comparing the CSI 300's movements with the IDX LQ45 can provide additional context on regional capital flows.