China PCB Stocks Rally Again; Aohong Electronics Hits Fourth Straight Limit-Up

A fourth consecutive limit-up in a single PCB name, alongside double-digit gains in a peer, points to momentum-driven rather than fundamentals-driven trading. The breadth of the gainers — several distinct companies moving together — suggests a thematic bid on the PCB supply chain rather than stock-specific news. The open question is whether this remains a short-lived rotation or signals a broader re-rating of the sector; the repeated bouts of activity mentioned suggest the theme has staying power, but limit-up streaks of this length typically invite volatility.