China PCB stocks rebound from lows; Mingyang Circuits hits 20% limit-up

The reversal matters more than the rebound itself: a sector-wide snapback after an intraday slide suggests buyers are still willing to step in on PCB names tied to the AI hardware supply chain, even after a sharp run. The breadth is notable, with gains spreading beyond the limit-up leader into smaller components players. Whether this holds as a durable rotation or is just dip-buying in an extended group remains the open question, and follow-through in the laggards will be the tell.