● IndustryOct 30, 2026 · 21:078 sources
China's CSI 300 Completes 12 Week Losing Streak as Losses Reach $3.4T
From marketbrief.now
AI;DR
China's CSI 300 Index fell for a 12th consecutive week, marking its longest losing streak in history, with total losses since the June peak reaching $3.4 trillion and the index down more than 20% in a bear market. Technology and artificial intelligence shares led the selloff, with the STAR 50 Index sinking 5.48% and listed AI model developers MiniMax and Zhipu down 85% from their highs, while chipmakers SMIC, Cambricon and CXMT fell 49%, 43% and 36% respectively. The declines persisted despite roughly $25 billion in equity purchases by state-backed funds this month and an average of $2.5 billion a day in state ETF buying since July.
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- SUPPORT@business“China’s state-led funds stepped into the market with the heaviest buying since the April 2025 rout, as authorities ramped up efforts to stem a market freefall”x.com
- SUPPORT@ericbalchunas“China's gov't has been buying $2.5b/day in equity ETFs since July to try and prop up market after AI slump. What's wild is China typically only sees about $218m/day in ETF flows = the govt is 10x the average.”x.com
- SUPPORT@haohong_cfa“China’s STAR50 index plunged 45% in 120 days, while the NASDAQ plunged 45% in 360 days in the 2008 financial crisis.”x.com
- SUPPORT@niubi“China’s national team may need to accelerate stock purchases after the benchmark notched a record losing streak, but state-backed buying alone may not be enough to put the market on a sustained recovery, according to Bloomberg Intelligence”x.com
- SUPPORT@visegrad24“China’s AI market has entered a severe crash, with the tech-heavy STAR50 Index dropping 40% from its July high in less than four months.”x.com
- SUPPORT@barchart“Chinese Stock Market has now traded red for 10 consecutive weeks, its longest losing streak in history”x.com
#chinaMarkdownScore 0.13.7k tokens
Content history (2)
- 2026-10-30 · Summary · vi · Replaced stored textChỉ số chuẩn CSI 300 của Trung Quốc giảm trong tuần thứ 12 liên tiếp, hoàn thành chuỗi tu…Chỉ số benchmark CSI 300 của Trung Quốc giảm trong tuần thứ 12 liên tiếp, hoàn thành chuỗ…
- 2026-10-30 · Title · vi · Replaced stored textChỉ số CSI 300 của Trung Quốc hoàn thành chuỗi tuần giảm 12 tuần khi mất mát đạt 3,4 nghì…Chỉ số CSI 300 của Trung Quốc kết thúc chuỗi tuần giảm 12 tuần liên tiếp khi mất giá lên …