Idemitsu Kosan Stock Hits Day Low at JPY 987.50 Amid Price Pressure

Idemitsu Kosan Co., a prominent player in the oil industry, experienced a notable decline of 3.7% on October 14, 2025, reaching an intraday low of JPY 987.50. This performance stands in contrast to the Japan Nikkei 225, which fell by only 1.01% on the same day. Over the past week, Idemitsu Kosan has seen a slight decrease of 0.69%, while its monthly performance remains positive at 0.91%. However, the stock has faced significant challenges over the past year, with a decline of 8.63%, compared to a robust 22.11% increase in the Nikkei 225.
Financial metrics indicate that Idemitsu Kosan has a market capitalization of JPY 1,302,924 million and a price-to-earnings ratio of 8.00. The company has demonstrated high management efficiency with a return on capital employed (ROCE) of 5.90%. However, it also carries a debt-to-equity ratio of 0.65, reflecting a high debt level. Despite some healthy long-term growth in net sales, the company has struggled with profitability, reporting a significant drop in profits over the past year.