Taiwan's memory chip maker Nanya Technology is booming as the AI buildout drains supply of ordinary memory chips — great news for its shareholders, painful for anyone buying memory.

• Nanya's quarterly profit jumped sharply, with profit margins climbing above 85% as chip prices soared.
• Big global memory makers are shifting production to high-end AI chips, leaving Nanya as a main supplier of older DDR4 memory and giving it strong pricing power.
• Long-term supply contracts were renegotiated at much higher prices, locking in profits for several quarters.
• Analysts expect the memory shortage to last into 2027 or early 2028, and see Nanya's earnings roughly doubling again next year.
• Taiwan's broader market fell hard the same day, dropping over 800 points as AI-related stocks pulled back and TSMC slipped.

Outlook: Memory prices look set to keep rising, so Nanya's earnings should stay strong even as the wider Taiwan market swings.