China's A-share technology sector, after a month-long pullback, stabilized last
week and recorded four consecutive gains. On Aug. 7 PCB and memory-chip
sub-sectors led the rebound: Wind's optical-communications concept index rose
3.21% and the Guozheng storage chip industry index rose 4.12%; both are up
roughly 20% over the past four trading days. The sector bounce pushed heavily
weighted tech mutual funds sharply higher—Wind data show nearly 160 funds gained
more than 20% in that four‑day span, with two funds up over 30%, reflecting
rapid short‑term NAV recovery.