Taiwanese automation equipment maker Mirle Automation surged to its daily price ceiling on heavy volume, a strong sign for investors betting on the AI factory buildout.

• Mirle's stock jumped straight to limit-up at the open and stayed locked there until the close.
• Buyers kept piling in, leaving a huge queue of unfilled orders at the ceiling price — a sign the rally may have more room.
• The demand is coming from AI servers, advanced chip packaging, and ABF substrate makers all expanding capacity at once.
• Mirle's monthly sales have grown every month since March, with double-digit gains year over year.
• Retail investors flooded stock forums with celebratory posts, showing how hot sentiment has become.

Outlook: Expect continued attention on automation equipment suppliers as long as chipmakers keep expanding packaging capacity, though the crowded buy queue signals the kind of retail enthusiasm that can reverse quickly.