A-share Memory Chip Sector Falls Five Straight Days; GigaDevice Limit-Down Wipes Out Over RMB 350 Billion
On August 3, 2026, the A-share memory chip sector extended its losing streak to a fifth session. Longsys (301308. SZ) fell 7.84%, Biwin Storage (688525. SH) dropped 8.49%, and GigaDevice (603986. SH) hit the daily limit-down. ChangXin Technology (688825. SH) bucked the trend, rising 1.89% and staying more than 500% above its IPO price. GigaDevice closed at RMB 340.74, down nearly 60% from its June 29 intraday record of RMB 846.66, with market value down over RMB 350 billion from the peak.
On August 3, 2026, the A-share memory chip sector continued its decline from previous trading sessions. Longsys (301308. SZ) closed down 7.84%, Biwin Storage (688525. SH) fell 8.49%, and GigaDevice (603986. SH) hit the limit-down. ChangXin Technology (688825. SH) rose 1.89% against the trend, up more than 500% from its IPO price.
GigaDevice fell 10% in the afternoon and touched the limit-down, closing at RMB 340.74 per share, a pullback of nearly 60% from its intraday record of RMB 846.66 on June 29. Its market value has shed over RMB 350 billion from the historical peak. Main capital saw a net outflow of more than RMB 4.8 billion on the day, the largest among A-share stocks, while over RMB 30 billion in main capital has exited over the past 20 sessions.