Shares for Tokyo Electron have dropped by a tenth since early April 2023, while Towa shares have experienced a similar fall since last Thursday. Advantest, specializing in chip testing equipment, has seen its shares fall by a quarter since a March high. Screen Holdings, which produces wafer cleaning and etching materials, has also registered a decline.
The decreases are attributed to missed optimistic estimates in the March quarter and steep valuations. Rapid gains before the sell-off had pushed stocks like Advantest to 48 times forward earnings, considerably higher than global peers. An additional boost came from foreign investor interest after the Tokyo Stock Exchange urged companies to improve capital efficiency, pushing the Nikkei 225 index up significantly since the previous year.
Despite weaker-than-expected demand and falling memory chip prices resulting from last year’s chip supply glut, long-term demand for chipmaking equipment and materials is anticipated to rise with increasing capital investment in servers globally. While investors often overlook companies making silicon wafers and chemicals compared to AI chip designers, these suppliers benefit from limited rivalry. Notably, four local companies dominate nearly three-quarters of the world’s photoresist supply, used in the chip manufacturing process, ensuring stable margins and protection against market fluctuations.