On Friday June 12 more than a dozen A‑share broad indices including the CSI 300, CSI A500 and STAR 50 will implement sample changes. As of June 10, index funds tracking these benchmarks hold about 900 billion yuan; CSI 300 ETFs exceed 400 billion yuan and CSI A500 and STAR 50 ETFs each exceed 100 billion yuan. Some indices will replace up to around 10% of constituents. Additions of several semiconductor and other technology names have materially increased the tech weighting of major broad A‑shar

On Friday June 12 more than a dozen A‑share broad indices including the CSI 300, CSI A500 and STAR 50 will implement sample changes. As of June 10, index funds tracking these benchmarks hold about 900 billion yuan; CSI 300 ETFs exceed 400 billion yuan and CSI A500 and STAR 50 ETFs each exceed 100 billion yuan. Some indices will replace up to around 10% of constituents. Additions of several semiconductor and other technology names have materially increased the tech weighting of major broad A‑share indices. Fund managers say the shift from traditional core assets toward hard tech and high‑end manufacturing improves index efficacy and better reflects China’s industrial upgrading and high‑quality growth.