Stock listing
KRX:066310 QSI Co., Ltd. (큐에스아이) 주가
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Share price · KRX:066310
₩7,210.00 KRW -230.00 (-3.1%)
Close on Oct 30, 2026
- Day range
- ₩7,140.00 – ₩7,430.00 KRWOct 30, 2026
- Volume
- 32,146 sharesOct 30, 2026
- Market cap
- ₩64.42B KRWAt the close on Oct 30, 2026 · price × 8.93M shares outstanding
- 52-week range
- ₩5,360.00 – ₩22,750.00 KRWLowest and highest trades, Oct 31, 2025 – Oct 30, 2026
- Traded on an average day
- ₩475.7M KRWMedian day 43,955 shares · last 3 months, Jul 30, 2026 – Oct 30, 2026
Daily closes
Last 3 months, Jul 30, 2026 – Oct 30, 2026 · KRX:066310 · KRW, adjusted for splits
| Day | Close | Change | % | Open | High | Low | Volume |
|---|---|---|---|---|---|---|---|
| ₩7,210.00 | -230.00 | -3.1% | ₩7,430.00 | ₩7,430.00 | ₩7,140.00 | 32,146 | |
| ₩7,440.00 | -110.00 | -1.5% | ₩7,550.00 | ₩7,870.00 | ₩7,350.00 | 43,910 | |
| ₩7,550.00 | +120.00 | +1.6% | ₩7,440.00 | ₩7,670.00 | ₩7,440.00 | 31,247 | |
| ₩7,430.00 | +200.00 | +2.8% | ₩7,270.00 | ₩7,510.00 | ₩7,270.00 | 19,158 | |
| ₩7,230.00 | -180.00 | -2.4% | ₩7,410.00 | ₩7,460.00 | ₩7,230.00 | 24,980 | |
| ₩7,410.00 | -60.00 | -0.8% | ₩7,370.00 | ₩7,420.00 | ₩7,150.00 | 25,776 | |
| ₩7,470.00 | -130.00 | -1.7% | ₩7,530.00 | ₩7,720.00 | ₩7,450.00 | 26,761 | |
| ₩7,600.00 | +40.00 | +0.5% | ₩7,670.00 | ₩7,900.00 | ₩7,410.00 | 52,717 | |
| ₩7,560.00 | -420.00 | -5.3% | ₩7,980.00 | ₩7,980.00 | ₩7,450.00 | 38,398 | |
| ₩7,980.00 | +240.00 | +3.1% | ₩7,500.00 | ₩7,980.00 | ₩7,500.00 | 49,821 | |
| ₩7,740.00 | +540.00 | +7.5% | ₩7,240.00 | ₩7,850.00 | ₩7,240.00 | 43,562 | |
| ₩7,200.00 | -770.00 | -9.7% | ₩7,600.00 | ₩7,600.00 | ₩7,080.00 | 102,976 | |
| ₩7,970.00 | -50.00 | -0.6% | ₩8,060.00 | ₩8,230.00 | ₩7,850.00 | 36,585 | |
| ₩8,020.00 | +40.00 | +0.5% | ₩7,750.00 | ₩8,040.00 | ₩7,650.00 | 81,815 | |
| ₩7,980.00 | -420.00 | -5.0% | ₩8,330.00 | ₩8,670.00 | ₩7,980.00 | 71,000 | |
| ₩8,400.00 | -210.00 | -2.4% | ₩8,560.00 | ₩8,570.00 | ₩8,380.00 | 54,040 | |
| ₩8,610.00 | -450.00 | -5.0% | ₩9,150.00 | ₩9,150.00 | ₩8,580.00 | 93,325 | |
| ₩9,060.00 | +440.00 | +5.1% | ₩8,880.00 | ₩9,570.00 | ₩8,810.00 | 226,785 | |
| ₩8,620.00 | +260.00 | +3.1% | ₩8,360.00 | ₩8,720.00 | ₩8,360.00 | 99,243 | |
| ₩8,360.00 | +320.00 | +4.0% | ₩8,040.00 | ₩8,380.00 | ₩8,030.00 | 53,679 | |
| ₩8,040.00 | -140.00 | -1.7% | ₩8,260.00 | ₩8,350.00 | ₩8,030.00 | 44,212 | |
| ₩8,180.00 | -100.00 | -1.2% | ₩8,280.00 | ₩8,320.00 | ₩7,990.00 | 34,174 | |
| ₩8,280.00 | +110.00 | +1.3% | ₩8,220.00 | ₩8,460.00 | ₩8,010.00 | 88,064 | |
| ₩8,170.00 | +120.00 | +1.5% | ₩8,150.00 | ₩8,390.00 | ₩8,050.00 | 76,758 | |
| ₩8,050.00 | +90.00 | +1.1% | ₩8,200.00 | ₩8,240.00 | ₩7,910.00 | 48,660 | |
| ₩7,960.00 | -450.00 | -5.4% | ₩8,480.00 | ₩8,550.00 | ₩7,960.00 | 148,454 | |
| ₩8,410.00 | +420.00 | +5.3% | ₩8,000.00 | ₩8,900.00 | ₩8,000.00 | 291,048 | |
| ₩7,990.00 | +120.00 | +1.5% | ₩7,950.00 | ₩8,090.00 | ₩7,750.00 | 88,199 | |
| ₩7,870.00 | +60.00 | +0.8% | ₩7,800.00 | ₩8,170.00 | ₩7,610.00 | 219,513 | |
| ₩7,810.00 | +120.00 | +1.6% | ₩7,730.00 | ₩8,000.00 | ₩7,540.00 | 79,410 | |
| ₩7,690.00 | +170.00 | +2.3% | ₩7,520.00 | ₩7,860.00 | ₩7,370.00 | 93,881 | |
| ₩7,520.00 | +180.00 | +2.5% | ₩7,300.00 | ₩7,850.00 | ₩7,020.00 | 99,919 | |
| ₩7,340.00 | -110.00 | -1.5% | ₩7,420.00 | ₩7,420.00 | ₩7,180.00 | 33,173 | |
| ₩7,450.00 | +520.00 | +7.5% | ₩6,980.00 | ₩7,850.00 | ₩6,970.00 | 177,654 | |
| ₩6,930.00 | -60.00 | -0.9% | ₩6,990.00 | ₩7,090.00 | ₩6,910.00 | 50,028 | |
| ₩6,990.00 | -40.00 | -0.6% | ₩7,070.00 | ₩7,090.00 | ₩6,830.00 | 40,653 | |
| ₩7,030.00 | +130.00 | +1.9% | ₩6,930.00 | ₩7,200.00 | ₩6,930.00 | 16,739 | |
| ₩6,900.00 | -260.00 | -3.6% | ₩7,160.00 | ₩7,230.00 | ₩6,890.00 | 29,116 | |
| ₩7,160.00 | -280.00 | -3.8% | ₩7,240.00 | ₩7,410.00 | ₩7,010.00 | 37,679 | |
| ₩7,440.00 | 0.00 | 0.0% | ₩7,440.00 | ₩7,450.00 | ₩7,300.00 | 14,411 | |
| ₩7,440.00 | -260.00 | -3.4% | ₩7,630.00 | ₩7,630.00 | ₩7,310.00 | 29,862 | |
| ₩7,700.00 | +110.00 | +1.4% | ₩7,590.00 | ₩7,750.00 | ₩7,480.00 | 18,204 | |
| ₩7,590.00 | +70.00 | +0.9% | ₩7,480.00 | ₩7,630.00 | ₩7,400.00 | 22,643 | |
| ₩7,520.00 | +90.00 | +1.2% | ₩7,440.00 | ₩7,560.00 | ₩7,270.00 | 24,601 | |
| ₩7,430.00 | +380.00 | +5.4% | ₩7,050.00 | ₩7,490.00 | ₩6,810.00 | 36,389 | |
| ₩7,050.00 | +70.00 | +1.0% | ₩7,100.00 | ₩7,180.00 | ₩6,890.00 | 49,683 | |
| ₩6,980.00 | -370.00 | -5.0% | ₩7,320.00 | ₩7,320.00 | ₩6,950.00 | 40,460 | |
| ₩7,350.00 | +40.00 | +0.5% | ₩7,310.00 | ₩7,500.00 | ₩7,250.00 | 22,528 | |
| ₩7,310.00 | -290.00 | -3.8% | ₩7,490.00 | ₩7,550.00 | ₩7,260.00 | 30,290 | |
| ₩7,600.00 | -180.00 | -2.3% | ₩7,800.00 | ₩7,900.00 | ₩7,410.00 | 39,396 | |
| ₩7,780.00 | -30.00 | -0.4% | ₩7,810.00 | ₩8,060.00 | ₩7,620.00 | 19,903 | |
| ₩7,810.00 | +30.00 | +0.4% | ₩8,130.00 | ₩8,130.00 | ₩7,780.00 | 51,171 | |
| ₩7,780.00 | +160.00 | +2.1% | ₩7,620.00 | ₩7,800.00 | ₩7,500.00 | 28,002 | |
| ₩7,620.00 | -40.00 | -0.5% | ₩7,580.00 | ₩7,770.00 | ₩7,400.00 | 26,069 | |
| ₩7,660.00 | +530.00 | +7.4% | ₩7,300.00 | ₩7,780.00 | ₩7,290.00 | 62,153 | |
| ₩7,130.00 | -220.00 | -3.0% | ₩7,350.00 | ₩7,700.00 | ₩7,050.00 | 26,681 | |
| ₩7,350.00 | -110.00 | -1.5% | ₩7,450.00 | ₩7,460.00 | ₩7,130.00 | 44,000 | |
| ₩7,460.00 | +490.00 | +7.0% | ₩7,120.00 | ₩7,570.00 | ₩7,120.00 | 86,389 | |
| ₩6,970.00 | +480.00 | +7.4% | ₩6,600.00 | ₩7,040.00 | ₩6,600.00 | 56,896 | |
| ₩6,490.00 | +10.00 | +0.2% | ₩6,410.00 | ₩6,780.00 | ₩6,340.00 | 42,273 | |
| ₩6,480.00 | +690.00 | +11.9% | ₩5,990.00 | ₩6,480.00 | ₩5,980.00 | 53,815 | |
| ₩5,790.00 | +20.00 | +0.3% | ₩5,360.00 | ₩6,060.00 | ₩5,360.00 | 55,807 |
- Ticker
- KRX:066310
- Asset type
- Stock
- Sector
- Technology
- Industry
- Semiconductors
- Exchange
- KRX
- Currency
- KRW
QSI Co., Ltd. on 6ix
- Sector
- Technology
- Industry
- Semiconductors
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