Toto shares hit five-year high on AI semiconductor optimism

4 articles · Updated · MarketWatch · May 7

The stock climbed as much as 9.1% in Tokyo on Thursday after holidays, and was last up 6.7%, its highest since March 2021, after Toto outlined a $192 million ceramics expansion.
Investors are recasting the Japanese toilet maker as a key chip-supply-chain player because its precision ceramics, including electrostatic chucks and aerosol deposition parts, are used in semiconductor manufacturing equipment.
Ceramics helped lift fiscal-year net profit more than threefold and chip-related operating profit 42%, offsetting weak housing sales; Toto forecasts 14% net profit growth this year despite near-term memory-chip softness.

How did Japan's toilet king become a secret weapon in the high-stakes semiconductor supply chain?

As AI chips get hotter, can Toto's ceramic tech solve the industry's next billion-dollar problem?