At the Oct 13 close, 1 rose and 3 fell, with a median move of −1.3%. Of the 4 stocks with a prior-session comparison, 3 improved relative strength and 3 improved momentum.
Compare 4 tracked South Korean companies in ess & energy storage: what they do, where they fit in the industry, and their local share prices.
Large-scale battery and PCS-based energy storage systems
Prices are in South Korean won (KRW). Stock codes identify local KOSPI or KOSDAQ listings, not US ADRs. These are closing-price observations, not a real-time feed.
Highest composite score in this tracked group: LG ENERGY SOLUTION, LTD.. This is a multi-factor score, not relative strength alone.
| Company / listing | Close (KRW) | Change | Market cap (KRW) | Composite score |
|---|---|---|---|---|
| LG ENERGY SOLUTION, LTD.KOSPI · 373220 | 410,0002026-10-13 | +3.02% | 95.9T | 75.92026-10-13 |
| SAMSUNG SDI CO.,LTDKOSPI · 006400 | 560,0002026-10-13 | -0.18% | 45.1T | 73.22026-10-13 |
| LS ELECTRIC CO., LTDKOSPI · 010120 | 179,2002026-10-13 | -2.40% | 26.9T | 67.62026-10-13 |
| Hyosung Heavy Industries CorporationKOSPI · 298040 | 2,152,0002026-10-13 | -4.01% | 20.1T | 40.72026-10-13 |
The 0–100 composite combines relative strength (30%), momentum (20%), volume (15%), ETF weight (15%), node correlation (5%), new inclusion (5%) and short-squeeze positioning (10%). It is not a return forecast or a pure relative-strength ranking. A dash means data is unavailable, not zero.
Business roles are separate from the site's screening rules. ETF inclusion or pension-fund ownership does not establish a company's product mix. Source-backed notes below explain our classification; they do not quantify revenue exposure or recommend a trade.
LG Energy Solution lists energy-storage batteries and ESS system integration among its offerings. This is a battery-and-system supplier exposure, not ownership of a grid operator.
Company source: LG Energy Solution — ESS & ESS SI · Reviewed 2026-09-17
Samsung SDI supplies batteries for grid-scale and commercial energy-storage systems. It provides the cells inside storage systems; it does not operate a grid.
Company source: SAMSUNG SDI CO.,LTD — ESS products · Reviewed 2026-09-18
LS ELECTRIC supplies power-conversion systems and grid-tie equipment for energy storage. Its role is the electrical hardware that connects storage to the grid, not the battery cells.
Company source: LS ELECTRIC CO., LTD — Products · Reviewed 2026-09-18
Hyosung Heavy Industries supplies power-conversion and grid-stabilisation equipment for energy storage. Its part is the electrical hardware linking storage to the grid, not the cells.
Company source: DART company overview — Hyosung Heavy Industries Corporation · Reviewed 2026-09-18