Shares of Wan Run, a maker of advanced semiconductor packaging equipment, rose against a weakening broader market — good news for investors betting on the AI supply chain.

• Wan Run jumped more than 7% at one point during the session before paring gains, ending back above its 5-day moving average.
• The gains were driven by the AI advanced packaging theme, particularly demand for silicon photonics and CPO (co-packaged optics).
• Foreign investors have been net buyers for five consecutive trading sessions, but investment trusts and proprietary dealers turned net sellers, showing a split among institutional investors.
• Wan Run supplies coupling equipment for fiber arrays and optical engines as well as automated optical inspection equipment; its CPO equipment developed with a leading industry player is scheduled for delivery in the fourth quarter.

Outlook: Volume shipments of CPO equipment in the first quarter of next year will be the key to whether the stock can extend its gains.