Stock listing
KRX:053300 Korea Information Certificate Authority, Inc. (한국정보인증) 주가
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Share price · KRX:053300
₩5,130.00 KRW -100.00 (-1.9%)
Close on Oct 20, 2026
- Day range
- ₩4,880.00 – ₩5,320.00 KRWOct 20, 2026
- Volume
- 165,405 sharesOct 20, 2026
- Market cap
- ₩199.7B KRWAt the close on Oct 20, 2026 · price × 38.93M shares outstanding
- 52-week range
- ₩3,780.00 – ₩7,750.00 KRWLowest and highest trades, Oct 21, 2025 – Oct 20, 2026

Daily closes
Last 3 months, Jul 20, 2026 – Oct 20, 2026 · KRX:053300 · KRW, adjusted for splits
| Day | Close | Change | % | Open | High | Low | Volume |
|---|---|---|---|---|---|---|---|
| ₩5,130.00 | -100.00 | -1.9% | ₩5,200.00 | ₩5,320.00 | ₩4,880.00 | 165,405 | |
| ₩5,230.00 | +90.00 | +1.8% | ₩5,090.00 | ₩5,240.00 | ₩5,030.00 | 83,061 | |
| ₩5,140.00 | +145.00 | +2.9% | ₩5,010.00 | ₩5,230.00 | ₩5,000.00 | 85,850 | |
| ₩4,995.00 | -145.00 | -2.8% | ₩4,980.00 | ₩5,100.00 | ₩4,950.00 | 184,401 | |
| ₩5,140.00 | -30.00 | -0.6% | ₩5,180.00 | ₩5,280.00 | ₩5,110.00 | 139,198 | |
| ₩5,170.00 | 0.00 | 0.0% | ₩5,170.00 | ₩5,250.00 | ₩5,030.00 | 190,038 | |
| ₩5,170.00 | -140.00 | -2.6% | ₩5,260.00 | ₩5,360.00 | ₩5,130.00 | 148,776 | |
| ₩5,310.00 | -70.00 | -1.3% | ₩5,370.00 | ₩5,390.00 | ₩5,250.00 | 189,946 | |
| ₩5,380.00 | -250.00 | -4.4% | ₩5,580.00 | ₩5,590.00 | ₩5,350.00 | 295,383 | |
| ₩5,630.00 | +440.00 | +8.5% | ₩5,520.00 | ₩5,680.00 | ₩5,360.00 | 1,340,903 | |
| ₩5,190.00 | +30.00 | +0.6% | ₩5,130.00 | ₩5,215.00 | ₩5,090.00 | 217,223 | |
| ₩5,160.00 | +90.00 | +1.8% | ₩5,070.00 | ₩5,160.00 | ₩5,030.00 | 100,620 | |
| ₩5,070.00 | +10.00 | +0.2% | ₩5,080.00 | ₩5,100.00 | ₩5,010.00 | 92,423 | |
| ₩5,060.00 | -70.00 | -1.4% | ₩5,150.00 | ₩5,150.00 | ₩4,975.00 | 123,951 | |
| ₩5,130.00 | +70.00 | +1.4% | ₩5,040.00 | ₩5,180.00 | ₩5,010.00 | 116,025 | |
| ₩5,060.00 | -10.00 | -0.2% | ₩5,080.00 | ₩5,200.00 | ₩5,030.00 | 130,456 | |
| ₩5,070.00 | -30.00 | -0.6% | ₩5,120.00 | ₩5,200.00 | ₩5,040.00 | 134,515 | |
| ₩5,100.00 | -100.00 | -1.9% | ₩5,200.00 | ₩5,230.00 | ₩5,070.00 | 221,620 | |
| ₩5,200.00 | +10.00 | +0.2% | ₩5,210.00 | ₩5,420.00 | ₩5,170.00 | 311,428 | |
| ₩5,190.00 | -210.00 | -3.9% | ₩5,320.00 | ₩5,330.00 | ₩5,160.00 | 369,288 | |
| ₩5,400.00 | -100.00 | -1.8% | ₩5,500.00 | ₩5,630.00 | ₩5,310.00 | 1,015,968 | |
| ₩5,500.00 | +380.00 | +7.4% | ₩5,100.00 | ₩6,090.00 | ₩5,100.00 | 6,680,180 | |
| ₩5,120.00 | -10.00 | -0.2% | ₩5,110.00 | ₩5,300.00 | ₩5,070.00 | 167,849 | |
| ₩5,130.00 | +100.00 | +2.0% | ₩4,990.00 | ₩5,280.00 | ₩4,985.00 | 209,776 | |
| ₩5,030.00 | -20.00 | -0.4% | ₩5,040.00 | ₩5,090.00 | ₩4,940.00 | 64,670 | |
| ₩5,050.00 | +60.00 | +1.2% | ₩5,050.00 | ₩5,070.00 | ₩4,955.00 | 53,288 | |
| ₩4,990.00 | -70.00 | -1.4% | ₩5,040.00 | ₩5,100.00 | ₩4,990.00 | 60,957 | |
| ₩5,060.00 | +30.00 | +0.6% | ₩5,050.00 | ₩5,100.00 | ₩5,010.00 | 56,856 | |
| ₩5,030.00 | +70.00 | +1.4% | ₩4,990.00 | ₩5,160.00 | ₩4,990.00 | 116,423 | |
| ₩4,960.00 | -50.00 | -1.0% | ₩5,010.00 | ₩5,050.00 | ₩4,915.00 | 75,146 | |
| ₩5,010.00 | -10.00 | -0.2% | ₩4,970.00 | ₩5,040.00 | ₩4,930.00 | 62,437 | |
| ₩5,020.00 | +30.00 | +0.6% | ₩4,990.00 | ₩5,060.00 | ₩4,955.00 | 48,354 | |
| ₩4,990.00 | -70.00 | -1.4% | ₩5,000.00 | ₩5,010.00 | ₩4,850.00 | 78,634 | |
| ₩5,060.00 | +110.00 | +2.2% | ₩5,050.00 | ₩5,080.00 | ₩4,985.00 | 140,651 | |
| ₩4,950.00 | -20.00 | -0.4% | ₩4,985.00 | ₩5,040.00 | ₩4,930.00 | 64,220 | |
| ₩4,970.00 | -80.00 | -1.6% | ₩5,030.00 | ₩5,060.00 | ₩4,910.00 | 99,589 | |
| ₩5,050.00 | +285.00 | +6.0% | ₩4,770.00 | ₩5,130.00 | ₩4,690.00 | 207,201 | |
| ₩4,765.00 | +70.00 | +1.5% | ₩4,760.00 | ₩4,875.00 | ₩4,720.00 | 103,513 | |
| ₩4,695.00 | -100.00 | -2.1% | ₩4,795.00 | ₩4,835.00 | ₩4,650.00 | 148,140 | |
| ₩4,795.00 | +395.00 | +9.0% | ₩4,430.00 | ₩4,830.00 | ₩4,430.00 | 188,748 | |
| ₩4,400.00 | -95.00 | -2.1% | ₩4,470.00 | ₩4,470.00 | ₩4,350.00 | 41,978 | |
| ₩4,495.00 | -175.00 | -3.7% | ₩4,610.00 | ₩4,665.00 | ₩4,475.00 | 61,168 | |
| ₩4,670.00 | +55.00 | +1.2% | ₩4,620.00 | ₩4,725.00 | ₩4,590.00 | 48,439 | |
| ₩4,615.00 | -55.00 | -1.2% | ₩4,675.00 | ₩4,775.00 | ₩4,605.00 | 101,213 | |
| ₩4,670.00 | +5.00 | +0.1% | ₩4,665.00 | ₩4,710.00 | ₩4,600.00 | 46,223 | |
| ₩4,665.00 | +35.00 | +0.8% | ₩4,600.00 | ₩4,700.00 | ₩4,580.00 | 67,705 | |
| ₩4,630.00 | +125.00 | +2.8% | ₩4,505.00 | ₩4,660.00 | ₩4,500.00 | 74,469 | |
| ₩4,505.00 | +25.00 | +0.6% | ₩4,480.00 | ₩4,560.00 | ₩4,450.00 | 42,053 | |
| ₩4,480.00 | -30.00 | -0.7% | ₩4,565.00 | ₩4,610.00 | ₩4,435.00 | 47,228 | |
| ₩4,510.00 | +35.00 | +0.8% | ₩4,540.00 | ₩4,575.00 | ₩4,500.00 | 64,673 | |
| ₩4,475.00 | +175.00 | +4.1% | ₩4,300.00 | ₩4,480.00 | ₩4,300.00 | 60,978 | |
| ₩4,300.00 | +20.00 | +0.5% | ₩4,200.00 | ₩4,415.00 | ₩4,200.00 | 50,364 | |
| ₩4,280.00 | +295.00 | +7.4% | ₩4,110.00 | ₩4,300.00 | ₩4,060.00 | 105,589 | |
| ₩3,985.00 | +15.00 | +0.4% | ₩3,780.00 | ₩4,070.00 | ₩3,780.00 | 84,720 | |
| ₩3,970.00 | -155.00 | -3.8% | ₩4,125.00 | ₩4,200.00 | ₩3,805.00 | 204,095 | |
| ₩4,125.00 | -180.00 | -4.2% | ₩4,245.00 | ₩4,325.00 | ₩4,065.00 | 83,558 | |
| ₩4,305.00 | +85.00 | +2.0% | ₩4,300.00 | ₩4,410.00 | ₩4,240.00 | 43,677 | |
| ₩4,220.00 | -105.00 | -2.4% | ₩4,290.00 | ₩4,370.00 | ₩4,215.00 | 75,495 | |
| ₩4,325.00 | +120.00 | +2.9% | ₩4,175.00 | ₩4,425.00 | ₩4,175.00 | 159,591 | |
| ₩4,205.00 | +75.00 | +1.8% | ₩4,150.00 | ₩4,265.00 | ₩4,140.00 | 49,757 | |
| ₩4,130.00 | +55.00 | +1.3% | ₩4,025.00 | ₩4,195.00 | ₩4,005.00 | 71,933 | |
| ₩4,075.00 | -145.00 | -3.4% | ₩4,185.00 | ₩4,225.00 | ₩4,040.00 | 58,192 |
- Ticker
- KRX:053300
- Asset type
- Stock
- Exchange
- KRX
- Currency
- KRW
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