ChiNext Index Extends Gain to 1% as PCB, CPO, Media and Aerospace Lead; About 3,500 Stocks Rise

The breadth here matters more than the headline index move: roughly 3,500 advancers points to a broad-based session rather than a narrow, single-theme rally. The leadership cluster — PCB, CPO, media and aerospace — spans both AI-adjacent hardware supply chains and non-tech sectors, which suggests the bid is not confined to one narrative. Whether that dispersion persists or narrows back to the usual growth complex is the open question worth watching.