Taiwanese glass fiber cloth maker Fu Chau is surging to record highs as big investors buy in, good news for shareholders riding the AI hardware boom.

• Fu Chau shares hit an all-time high, jumping close to 9% at one point after locking limit-up the day before.
• Big institutional buyers, both local and foreign, snapped up huge blocks of the stock.
• The driver is a shortage of high-grade glass fiber cloth, a key material for circuit boards, which is pushing prices up.
• Demand comes from AI servers, high-speed switches and fast networking gear, all of which need better materials.
• The company is shifting production toward its advanced low-loss products, aiming for those to be 70% of capacity this year.

Outlook: Tight supply and rising prices should keep lifting sales and profits quarter by quarter, though the stock is already swinging hard after its fast run-up.