— Know what they know.
Not Investment Advice
Also trades as: 5019.T (JPX) · $vol 45M · IDKOY (OTC) · $vol 0M

IDKOF OTC

Idemitsu Kosan Co.,Ltd.
1W: -5.7% 1M: +29.1% 3M: +31.7% YTD: +30.7% 1Y: +41.1% 3Y: +139.2% 5Y: +143.3%
$9.88
-0.71 (-6.70%)
 
OTC · Energy · Oil & Gas Refining & Marketing · Tech Score Buy · Power 70 · $11.8B mcap · 709M float · 0.0000% daily turnover · Short 100% of daily vol
Oct Typical
☀️
Sunny
+8.6% YTD avg
Midterm Year
☀️
Sunny
+24.2% YTD avg
2026 Now
☀️
Sunny
Above typical
20yr Avg YTD
+8.6%
Day 178 of 252
Midterm Year YTD
+24.2%
Presidential cycle avg
2026 YTD
+30.7%
Above 20yr avg
Typical Vol
11%
Annualized
Monthly Weather Forecast
Jan
20yr
💨
+2.5%
Midterm
☀️
+11.7%
8% win 40% vol
Feb
20yr
☀️
+3.4%
Midterm
☀️
+11.7%
17% win 26% vol
Mar
20yr
⛅
+5.4%
Midterm
☀️
+15.9%
67% win 32% vol
Apr
20yr
☁️
+5.8%
Midterm
☀️
+15.9%
8% win 22% vol
May
20yr
💨
+10.3%
Midterm
☀️
+22.6%
25% win 64% vol
Jun
20yr
🌧️
+7.7%
Midterm
☀️
+22.6%
0% win 26% vol
Jul
20yr
☁️
+6.7%
Midterm
☀️
+25.2%
33% win 26% vol
Aug
20yr
☁️
+6.6%
Midterm
☀️
+24.2%
25% win 22% vol
Sep
20yr
💨
+6.1%
Midterm
☀️
+14.9%
69% win 71% vol
Oct
20yr
🌧️
+5.6%
Midterm
☀️
+17.0%
8% win 11% vol
Now: -6.7%
Nov
20yr
💨
+10.5%
Midterm
☀️
+17.0%
25% win 36% vol
Dec
20yr
☀️
+1.7%
Midterm
☁️
-0.3%
33% win 13% vol
Seasonality (20yr)
Updated: 2026-10-02
YTD: +30.7%

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For informational purposes only. Not investment advice. Data sourced from SEC filings. Privacy Terms