Shin-Etsu Chemical Industry's first-half earnings announcement was viewed as a catalyst, and SUMCO continued to indicate a buy. Growth in the electronic materials business attracted investor attention.
SUMCO began trading with buy orders indicated, as Shin-Etsu Chemical Industry's earnings announcement was viewed as a catalyst. The rise in technology stocks in the US market the previous day was also cited as a market factor.
On the 27th, Shin-Etsu Chemical Industry announced consolidated operating profit of ¥385.9 billion for the first half of the fiscal year ending March 2027, up 15.6% year on year. Revenue in the electronic materials business, including semiconductor silicon wafers, rose 16% year on year, while operating profit increased 28%.
Following the earnings announcement, Shin-Etsu Chemical Industry started with buy orders indicated, and buying spread to related stocks including SUMCO on expectations for the company's performance as a leading silicon wafer specialist. Tokuyama, a major semiconductor silicon producer, also traded higher.