SUMCO Corp. Hits Day High with Strong 5.02% Intraday Surge

SUMCO Corp., a midcap player in the industrial manufacturing sector, has experienced a notable uptick in its stock performance today, gaining 5.02% as of October 3, 2025. The stock reached an intraday high of JPY 1,759.50, reflecting a strong day of trading activity.
In terms of performance metrics, SUMCO Corp. has shown significant gains over various time frames. Over the past week, the stock has surged by 18.67%, and it has delivered a remarkable 37.17% increase over the past month. Year-to-date, the stock has risen by 43.2%, outperforming the Japan Nikkei 225, which has seen a 14.73% increase in the same period.

Despite these short-term gains, the company has faced challenges, including negative results for the last eight consecutive quarters. Key financial indicators show a return on equity (ROE) of 2.63% and a price-to-book ratio of 0.75, suggesting a valuation that may be attractive compared to its peers. However, the stock's performance over the last year remains below the market average, with a return of just 3.67% compared to the Japan Nikkei 225's 18.72%.