Big move · South Korea stocks
Samsung SDI Co., Ltd. (006400) surges 11.7% to KRW 592,000.00
Its biggest one-day rise in 4 months, on 2.4 times its 20-day average volume.
- Close
- KRW 592,000.00
- On the day
- +11.7%
- Volume
- 2.4× average
- vs 52-week high
- −16.9%
Samsung SDI Co., Ltd. closing prices
The last 90 closes up to 19 October 2026. The live chart is on the 006400 page.
What happened
Samsung SDI Co., Ltd. (006400) closed at KRW 592,000.00 on 19 October 2026, up 11.7% from KRW 530,000.00 the session before.
It was 006400's biggest one-day rise in 4 months. Over 5 sessions the price is up 5.5%, and over 20 sessions it is up 8.2%.
The close is 16.9% below the highest close of the past year (KRW 712,000.00 on 29 Apr 2026) and 186.0% above the lowest (KRW 207,000.00 on 10 Oct 2025).
Trading was heavy: volume was 2.4 times its average of the sessions before.
Across the 21 KSE stocks we track, 12 closed higher and 8 closed lower that day, with a median change of +1.69%. 006400's change was +11.7%.
This page reports what the price and volume data show. It does not say why the price moved.
The numbers
| Previous close | KRW 530,000.00 |
|---|---|
| Close | KRW 592,000.00 |
| Change on the day | +11.70% |
| Change over 5 sessions | +5.53% |
| Change over 20 sessions | +8.23% |
| Volume | 1.04 Million |
| Average volume, up to 20 sessions before | 434,759 |
| Volume against that average | 2.4 times |
| Highest close in the past year | KRW 712,000.00 (29 Apr 2026) |
| Lowest close in the past year | KRW 207,000.00 (10 Oct 2025) |
The full chart and history are on Samsung SDI Co., Ltd. (006400). More from this market: KSE news today.