Idemitsu Kosan Co. LT has returned +82.3% from $4.80 since 2021, outpacing SPY's +76.5% over the same period. The stock hit an all-time high of $9.65 in Mar 2026 and is currently 9.3% below that level. 3 news events tracked with market reaction data.
Expand to read Wikipedia-sourced background on the company. Click any linked term to explore it inline — no page reload.
Common questions answered from real data: performance vs SPY, market cap, profitability, CEO, dividends, and more.
Every dot on the chart is a news event. The return shown is market-adjusted (vs SPY). Green = stock outperformed. Red = underperformed. Dot size = magnitude of reaction.
Want the full written briefing?
The chart shows what moved — the briefing shows why. Sourced, dated, no hot takes.
| Date | Return | Category | Source | Headline |
|---|---|---|---|---|
| 2026-03-18 | +1.6% | news | Offshore Technology | EIG-backed LNG company MidOcean Energy raises $1.2bn in new funding |
| 2026-03-17 | +1.1% | news | Business Wire | EIG’s MidOcean Energy Announces Initial Equity Raise of $1.2 billion Versus $1.0 billion Cover |
| 2026-04-03 | -0.5% | news | Simply Wall St. | Assessing Idemitsu Kosan (TSE:5019) Valuation After Recent Mixed Share Price Performance |