Stock listing
KRX:121890 SD System Co., Ltd. (에스디시스템) 주가
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Share price · KRX:121890
₩2,430.00 KRW -105.00 (-4.1%)
Close on Oct 30, 2026
- Day range
- ₩2,425.00 – ₩2,595.00 KRWOct 30, 2026
- Volume
- 16,564 sharesOct 30, 2026
- Market cap
- ₩32.30B KRWAt the close on Oct 30, 2026 · price × 13.29M shares outstanding
- 52-week range
- ₩1,312.00 – ₩2,995.00 KRWLowest and highest trades, Oct 31, 2025 – Oct 30, 2026
- Traded on an average day
- ₩180.4M KRWMedian day 42,450 shares · last 3 months, Jul 30, 2026 – Oct 30, 2026

Daily closes
Last 3 months, Jul 30, 2026 – Oct 30, 2026 · KRX:121890 · KRW, adjusted for splits
| Day | Close | Change | % | Open | High | Low | Volume |
|---|---|---|---|---|---|---|---|
| ₩2,430.00 | -105.00 | -4.1% | ₩2,590.00 | ₩2,595.00 | ₩2,425.00 | 16,564 | |
| ₩2,535.00 | -55.00 | -2.1% | ₩2,590.00 | ₩2,700.00 | ₩2,495.00 | 38,294 | |
| ₩2,590.00 | +105.00 | +4.2% | ₩2,545.00 | ₩2,750.00 | ₩2,455.00 | 19,569 | |
| ₩2,485.00 | -45.00 | -1.8% | ₩2,530.00 | ₩2,725.00 | ₩2,485.00 | 21,233 | |
| ₩2,530.00 | +130.00 | +5.4% | ₩2,310.00 | ₩2,570.00 | ₩2,310.00 | 23,007 | |
| ₩2,400.00 | -130.00 | -5.1% | ₩2,525.00 | ₩2,700.00 | ₩2,380.00 | 48,726 | |
| ₩2,530.00 | -140.00 | -5.2% | ₩2,665.00 | ₩2,665.00 | ₩2,525.00 | 20,463 | |
| ₩2,670.00 | -25.00 | -0.9% | ₩2,705.00 | ₩2,705.00 | ₩2,615.00 | 31,982 | |
| ₩2,695.00 | -30.00 | -1.1% | ₩2,725.00 | ₩2,725.00 | ₩2,615.00 | 64,102 | |
| ₩2,725.00 | +5.00 | +0.2% | ₩2,780.00 | ₩2,800.00 | ₩2,695.00 | 59,088 | |
| ₩2,720.00 | -100.00 | -3.5% | ₩2,805.00 | ₩2,835.00 | ₩2,720.00 | 58,295 | |
| ₩2,820.00 | +150.00 | +5.6% | ₩2,600.00 | ₩2,995.00 | ₩2,530.00 | 233,531 | |
| ₩2,670.00 | +105.00 | +4.1% | ₩2,705.00 | ₩2,780.00 | ₩2,565.00 | 57,514 | |
| ₩2,565.00 | -115.00 | -4.3% | ₩2,680.00 | ₩2,700.00 | ₩2,480.00 | 91,902 | |
| ₩2,680.00 | -220.00 | -7.6% | ₩2,900.00 | ₩2,990.00 | ₩2,615.00 | 144,513 | |
| ₩2,900.00 | +25.00 | +0.9% | ₩2,860.00 | ₩2,905.00 | ₩2,845.00 | 128,533 | |
| ₩2,875.00 | -5.00 | -0.2% | ₩2,855.00 | ₩2,910.00 | ₩2,845.00 | 81,346 | |
| ₩2,880.00 | +35.00 | +1.2% | ₩2,880.00 | ₩2,900.00 | ₩2,800.00 | 53,922 | |
| ₩2,845.00 | +125.00 | +4.6% | ₩2,735.00 | ₩2,850.00 | ₩2,720.00 | 125,494 | |
| ₩2,720.00 | -10.00 | -0.4% | ₩2,735.00 | ₩2,790.00 | ₩2,690.00 | 69,582 | |
| ₩2,730.00 | +10.00 | +0.4% | ₩2,700.00 | ₩2,795.00 | ₩2,670.00 | 61,981 | |
| ₩2,720.00 | -10.00 | -0.4% | ₩2,725.00 | ₩2,785.00 | ₩2,705.00 | 23,816 | |
| ₩2,730.00 | 0.00 | 0.0% | ₩2,695.00 | ₩2,750.00 | ₩2,690.00 | 27,325 | |
| ₩2,730.00 | -5.00 | -0.2% | ₩2,730.00 | ₩2,750.00 | ₩2,690.00 | 12,525 | |
| ₩2,735.00 | -30.00 | -1.1% | ₩2,740.00 | ₩2,770.00 | ₩2,695.00 | 13,522 | |
| ₩2,765.00 | +65.00 | +2.4% | ₩2,710.00 | ₩2,770.00 | ₩2,675.00 | 22,400 | |
| ₩2,700.00 | 0.00 | 0.0% | ₩2,700.00 | ₩2,770.00 | ₩2,660.00 | 16,396 | |
| ₩2,700.00 | +40.00 | +1.5% | ₩2,650.00 | ₩2,730.00 | ₩2,610.00 | 69,039 | |
| ₩2,660.00 | -35.00 | -1.3% | ₩2,685.00 | ₩2,690.00 | ₩2,610.00 | 7,046 | |
| ₩2,695.00 | +70.00 | +2.7% | ₩2,625.00 | ₩2,695.00 | ₩2,550.00 | 108,072 | |
| ₩2,625.00 | -45.00 | -1.7% | ₩2,670.00 | ₩2,670.00 | ₩2,605.00 | 41,716 | |
| ₩2,670.00 | +10.00 | +0.4% | ₩2,695.00 | ₩2,695.00 | ₩2,570.00 | 10,313 | |
| ₩2,660.00 | +60.00 | +2.3% | ₩2,580.00 | ₩2,725.00 | ₩2,580.00 | 24,778 | |
| ₩2,600.00 | +5.00 | +0.2% | ₩2,665.00 | ₩2,665.00 | ₩2,600.00 | 90,606 | |
| ₩2,595.00 | -255.00 | -8.9% | ₩2,850.00 | ₩2,850.00 | ₩2,490.00 | 224,826 | |
| ₩2,850.00 | +170.00 | +6.3% | ₩2,685.00 | ₩2,895.00 | ₩2,685.00 | 199,201 | |
| ₩2,680.00 | +50.00 | +1.9% | ₩2,630.00 | ₩2,795.00 | ₩2,615.00 | 72,351 | |
| ₩2,630.00 | -60.00 | -2.2% | ₩2,690.00 | ₩2,700.00 | ₩2,575.00 | 35,854 | |
| ₩2,690.00 | -25.00 | -0.9% | ₩2,715.00 | ₩2,745.00 | ₩2,565.00 | 43,184 | |
| ₩2,715.00 | -75.00 | -2.7% | ₩2,795.00 | ₩2,857.00 | ₩2,650.00 | 112,431 | |
| ₩2,790.00 | +230.00 | +9.0% | ₩2,560.00 | ₩2,830.00 | ₩2,555.00 | 179,812 | |
| ₩2,560.00 | -185.00 | -6.7% | ₩2,715.00 | ₩2,715.00 | ₩2,510.00 | 192,107 | |
| ₩2,745.00 | 0.00 | 0.0% | ₩2,690.00 | ₩2,770.00 | ₩2,515.00 | 301,305 | |
| ₩2,745.00 | +310.00 | +12.7% | ₩2,430.00 | ₩2,790.00 | ₩2,430.00 | 111,333 | |
| ₩2,435.00 | +5.00 | +0.2% | ₩2,340.00 | ₩2,470.00 | ₩2,340.00 | 18,463 | |
| ₩2,430.00 | +30.00 | +1.3% | ₩2,285.00 | ₩2,485.00 | ₩2,260.00 | 33,123 | |
| ₩2,400.00 | -250.00 | -9.4% | ₩2,650.00 | ₩2,700.00 | ₩2,400.00 | 123,708 | |
| ₩2,650.00 | +290.00 | +12.3% | ₩2,360.00 | ₩2,690.00 | ₩2,350.00 | 222,085 | |
| ₩2,360.00 | +75.00 | +3.3% | ₩2,270.00 | ₩2,385.00 | ₩2,220.00 | 103,076 | |
| ₩2,285.00 | +150.00 | +7.0% | ₩2,175.00 | ₩2,285.00 | ₩2,100.00 | 81,062 | |
| ₩2,135.00 | +5.00 | +0.2% | ₩2,130.00 | ₩2,175.00 | ₩2,110.00 | 11,604 | |
| ₩2,130.00 | +110.00 | +5.4% | ₩2,060.00 | ₩2,175.00 | ₩2,020.00 | 22,658 | |
| ₩2,020.00 | +10.00 | +0.5% | ₩2,120.00 | ₩2,160.00 | ₩2,005.00 | 30,949 | |
| ₩2,010.00 | +63.00 | +3.2% | ₩1,970.00 | ₩2,070.00 | ₩1,956.00 | 76,230 | |
| ₩1,947.00 | +31.00 | +1.6% | ₩1,916.00 | ₩1,990.00 | ₩1,916.00 | 8,398 | |
| ₩1,916.00 | +25.00 | +1.3% | ₩1,892.00 | ₩1,930.00 | ₩1,860.00 | 5,266 | |
| ₩1,891.00 | -54.00 | -2.8% | ₩1,943.00 | ₩1,969.00 | ₩1,805.00 | 32,881 | |
| ₩1,945.00 | -42.00 | -2.1% | ₩2,100.00 | ₩2,100.00 | ₩1,935.00 | 9,518 | |
| ₩1,987.00 | +30.00 | +1.5% | ₩1,954.00 | ₩1,987.00 | ₩1,926.00 | 21,200 | |
| ₩1,957.00 | +19.00 | +1.0% | ₩2,295.00 | ₩2,295.00 | ₩1,929.00 | 15,137 | |
| ₩1,938.00 | +52.00 | +2.8% | ₩1,887.00 | ₩2,000.00 | ₩1,870.00 | 28,455 | |
| ₩1,886.00 | -13.00 | -0.7% | ₩1,950.00 | ₩1,950.00 | ₩1,871.00 | 15,356 |
- Ticker
- KRX:121890
- Asset type
- Stock
- Exchange
- KRX
- Currency
- KRW
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