Idemitsu Kosan (5019) Stock Price, Fundamentals & Analysis

What 5019 does

Idemitsu Kosan (5019) is a Japanese energy company listed on the Tokyo Stock Exchange. It operates across fuel oil, basic chemicals, functional materials, and renewable energy, with activities spanning Japan, Singapore, Asia, Oceania, North America, and beyond. Its Fuel Oil segment refines and trades petroleum products, including sustainable aviation fuel and biofuels, and runs service stations offering refueling, car wash, and vehicle maintenance. The Basic Chemicals segment produces olefins and aromatics such as ethylene, propylene, and styrene monomer. The Functional Materials segment supplies lubricants, electronic materials, bitumen, and agri-bio products, while the Renewable Energy segment generates power from thermal, solar, and wind sources. As a large-cap energy stock, it is sometimes compared with peers like Eneos Holdings (5020), INPEX (1605), and international names such as Repsol (REP) and Hellenic Petroleum (ELPE).

Key numbers explained

• 1,663 JPY is the latest price per share, reflecting what investors currently pay for one unit of ownership.
• +0.76% is the price change today, a short-term move that can be influenced by market sentiment and sector news.
• 1.99T JPY is the market capitalization, the total value of all outstanding shares; it places the company in the large-cap range.
• The trailing P/E ratio of 11.9 divides the current share price by the last 12 months of earnings, showing how much investors pay per unit of recent profit.
• The forward P/E ratio of 12.6 uses expected future earnings, giving a sense of valuation relative to analyst expectations.
• 140.29 JPY is the trailing 12-month earnings per share, a measure of the company's profit attributable to each share.
• The dividend yield of 2.16% shows the annual dividend as a percentage of the share price, a common way to compare income returns across stocks.
• 0.29 is the beta, indicating the stock's historical sensitivity to market movements; a value below 1 suggests lower volatility than the market average.
• 136.9% is the debt-to-equity ratio, comparing total debt to shareholders' equity and giving a sense of financial leverage.
• 22.5% is the return on equity, showing how effectively the company generates profit from shareholders' capital.

What to watch

• Revenue growth of 23.3% year over year and 8.54T JPY in trailing 12-month revenue suggest strong top-line expansion, but margins remain modest at 4.2% profit and 13.5% operating margin.
• The 60% price change over the last 52 weeks, against a range of 987.5 – 1,708.5, highlights significant volatility over the past year.
• The 26% share of earnings paid out as dividends and the Sep 29, 2026 ex-dividend date are key dates for income-focused investors.
• The Nov 11, 2026 next earnings date is a common catalyst for price moves, as markets react to updated profit and outlook figures.
• As an energy stock, Idemitsu Kosan is exposed to commodity price cycles, refining margins, and the global energy transition, factors that also affect peers like Ampol (ALD) and Nexgen Energy (NXG).