On July 17 afternoon the Shanghai Composite Index briefly fell below 3,800; the
ChiNext Index and Shenzhen Composite Index were down over 8% at the session low
before staging a rebound, with ChiNext’s decline narrowing to about 4%. Market
participants described the move as a high‑volatility episode within a slow bull
rather than a structural trend reversal. Factors cited as providing support
include the Shanghai Composite trading near its annual moving average, a partial
reduction in margin‑finance leverage, and continued inflows into growth ETFs
tracking STAR 50, ChiNext and CSI 1000.