Stock listing
KRX:069540 Lightron Fiber-Optic Devices Inc. (빛과전자) 주가
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Share price · KRX:069540
₩3,755.00 KRW -210.00 (-5.3%)
Close on Oct 20, 2026
- Day range
- ₩3,755.00 – ₩4,070.00 KRWOct 20, 2026
- Volume
- 4.79M sharesOct 20, 2026
- Market cap
- ₩423.2B KRWAt the close on Oct 20, 2026 · price × 112.7M shares outstanding
- 52-week range
- ₩592.00 – ₩8,100.00 KRWLowest and highest trades, Oct 21, 2025 – Oct 20, 2026
Daily closes
Last 3 months, Jul 20, 2026 – Oct 20, 2026 · KRX:069540 · KRW, adjusted for splits
| Day | Close | Change | % | Open | High | Low | Volume |
|---|---|---|---|---|---|---|---|
| ₩3,755.00 | -210.00 | -5.3% | ₩3,970.00 | ₩4,070.00 | ₩3,755.00 | 4,793,871 | |
| ₩3,965.00 | +5.00 | +0.1% | ₩3,745.00 | ₩3,980.00 | ₩3,700.00 | 3,900,796 | |
| ₩3,960.00 | +40.00 | +1.0% | ₩4,005.00 | ₩4,060.00 | ₩3,790.00 | 6,301,208 | |
| ₩3,920.00 | -240.00 | -5.8% | ₩3,810.00 | ₩4,085.00 | ₩3,740.00 | 9,006,844 | |
| ₩4,160.00 | -5.00 | -0.1% | ₩4,315.00 | ₩4,525.00 | ₩4,040.00 | 12,210,695 | |
| ₩4,165.00 | -195.00 | -4.5% | ₩4,200.00 | ₩4,275.00 | ₩4,035.00 | 12,330,576 | |
| ₩4,360.00 | -510.00 | -10.5% | ₩4,980.00 | ₩5,070.00 | ₩4,330.00 | 10,123,932 | |
| ₩4,870.00 | -340.00 | -6.5% | ₩5,220.00 | ₩5,310.00 | ₩4,755.00 | 15,676,338 | |
| ₩5,210.00 | +200.00 | +4.0% | ₩5,120.00 | ₩5,990.00 | ₩4,950.00 | 47,620,984 | |
| ₩5,010.00 | +610.00 | +13.9% | ₩4,435.00 | ₩5,130.00 | ₩4,305.00 | 33,482,520 | |
| ₩4,400.00 | +260.00 | +6.3% | ₩4,265.00 | ₩4,400.00 | ₩4,190.00 | 9,549,126 | |
| ₩4,140.00 | +25.00 | +0.6% | ₩4,120.00 | ₩4,150.00 | ₩4,000.00 | 3,182,554 | |
| ₩4,115.00 | +90.00 | +2.2% | ₩4,150.00 | ₩4,150.00 | ₩4,000.00 | 3,938,131 | |
| ₩4,025.00 | +30.00 | +0.8% | ₩3,995.00 | ₩4,060.00 | ₩3,870.00 | 2,695,218 | |
| ₩3,995.00 | -25.00 | -0.6% | ₩4,020.00 | ₩4,180.00 | ₩3,955.00 | 3,154,168 | |
| ₩4,020.00 | +90.00 | +2.3% | ₩3,935.00 | ₩4,245.00 | ₩3,850.00 | 11,362,764 | |
| ₩3,930.00 | -180.00 | -4.4% | ₩4,175.00 | ₩4,190.00 | ₩3,900.00 | 5,129,014 | |
| ₩4,110.00 | +10.00 | +0.2% | ₩4,115.00 | ₩4,330.00 | ₩4,100.00 | 7,218,030 | |
| ₩4,100.00 | +5.00 | +0.1% | ₩4,200.00 | ₩4,400.00 | ₩4,095.00 | 18,379,922 | |
| ₩4,095.00 | -315.00 | -7.1% | ₩4,415.00 | ₩4,420.00 | ₩4,025.00 | 12,951,743 | |
| ₩4,410.00 | +290.00 | +7.0% | ₩4,120.00 | ₩4,800.00 | ₩4,100.00 | 73,431,109 | |
| ₩4,120.00 | -205.00 | -4.7% | ₩4,325.00 | ₩4,415.00 | ₩4,050.00 | 18,269,236 | |
| ₩4,325.00 | +455.00 | +11.8% | ₩3,860.00 | ₩4,620.00 | ₩3,740.00 | 80,463,484 | |
| ₩3,870.00 | -55.00 | -1.4% | ₩3,810.00 | ₩4,180.00 | ₩3,760.00 | 25,305,943 | |
| ₩3,925.00 | +115.00 | +3.0% | ₩3,870.00 | ₩4,250.00 | ₩3,660.00 | 38,771,527 | |
| ₩3,810.00 | +170.00 | +4.7% | ₩3,750.00 | ₩4,460.00 | ₩3,680.00 | 69,786,359 | |
| ₩3,640.00 | +840.00 | +30.0% | ₩2,900.00 | ₩3,640.00 | ₩2,900.00 | 41,821,441 | |
| ₩2,800.00 | +85.00 | +3.1% | ₩2,775.00 | ₩2,940.00 | ₩2,770.00 | 5,721,416 | |
| ₩2,715.00 | +55.00 | +2.1% | ₩2,695.00 | ₩2,735.00 | ₩2,645.00 | 2,024,642 | |
| ₩2,660.00 | -105.00 | -3.8% | ₩2,800.00 | ₩2,850.00 | ₩2,640.00 | 2,284,457 | |
| ₩2,765.00 | -75.00 | -2.6% | ₩2,695.00 | ₩2,820.00 | ₩2,690.00 | 2,654,694 | |
| ₩2,840.00 | +5.00 | +0.2% | ₩2,830.00 | ₩2,890.00 | ₩2,725.00 | 3,767,914 | |
| ₩2,835.00 | -95.00 | -3.2% | ₩2,830.00 | ₩2,970.00 | ₩2,760.00 | 5,819,069 | |
| ₩2,930.00 | -170.00 | -5.5% | ₩3,140.00 | ₩3,145.00 | ₩2,910.00 | 6,886,401 | |
| ₩3,100.00 | +255.00 | +9.0% | ₩2,975.00 | ₩3,350.00 | ₩2,960.00 | 30,824,285 | |
| ₩2,845.00 | +115.00 | +4.2% | ₩2,790.00 | ₩3,160.00 | ₩2,710.00 | 13,609,653 | |
| ₩2,730.00 | -75.00 | -2.7% | ₩2,700.00 | ₩2,835.00 | ₩2,620.00 | 4,213,024 | |
| ₩2,805.00 | +245.00 | +9.6% | ₩2,630.00 | ₩2,935.00 | ₩2,600.00 | 5,435,795 | |
| ₩2,560.00 | -115.00 | -4.3% | ₩2,675.00 | ₩2,675.00 | ₩2,500.00 | 1,968,429 | |
| ₩2,675.00 | +25.00 | +0.9% | ₩2,715.00 | ₩2,720.00 | ₩2,600.00 | 2,045,880 | |
| ₩2,650.00 | -80.00 | -2.9% | ₩2,610.00 | ₩2,860.00 | ₩2,530.00 | 2,949,957 | |
| ₩2,730.00 | -210.00 | -7.1% | ₩3,005.00 | ₩3,010.00 | ₩2,710.00 | 3,501,041 | |
| ₩2,940.00 | +20.00 | +0.7% | ₩2,945.00 | ₩2,945.00 | ₩2,790.00 | 3,554,404 | |
| ₩2,920.00 | -35.00 | -1.2% | ₩3,090.00 | ₩3,095.00 | ₩2,885.00 | 4,174,711 | |
| ₩2,955.00 | +15.00 | +0.5% | ₩3,025.00 | ₩3,030.00 | ₩2,830.00 | 5,545,615 | |
| ₩2,940.00 | -175.00 | -5.6% | ₩2,910.00 | ₩3,080.00 | ₩2,730.00 | 6,994,697 | |
| ₩3,115.00 | +110.00 | +3.7% | ₩3,045.00 | ₩3,300.00 | ₩3,005.00 | 18,662,141 | |
| ₩3,005.00 | +95.00 | +3.3% | ₩2,915.00 | ₩3,440.00 | ₩2,820.00 | 42,992,223 | |
| ₩2,910.00 | +20.00 | +0.7% | ₩2,890.00 | ₩3,205.00 | ₩2,690.00 | 44,311,703 | |
| ₩2,890.00 | +665.00 | +29.9% | ₩2,670.00 | ₩2,890.00 | ₩2,450.00 | 29,351,396 | |
| ₩2,225.00 | +220.00 | +11.0% | ₩2,120.00 | ₩2,270.00 | ₩2,087.00 | 7,686,853 | |
| ₩2,005.00 | +127.00 | +6.8% | ₩1,875.00 | ₩2,070.00 | ₩1,809.00 | 7,037,535 | |
| ₩1,878.00 | +200.00 | +11.9% | ₩1,830.00 | ₩1,950.00 | ₩1,805.00 | 8,390,594 | |
| ₩1,678.00 | -100.00 | -5.6% | ₩1,743.00 | ₩1,806.00 | ₩1,660.00 | 3,607,463 | |
| ₩1,778.00 | -172.00 | -8.8% | ₩1,960.00 | ₩2,040.00 | ₩1,702.00 | 3,874,882 | |
| ₩1,950.00 | -205.00 | -9.5% | ₩2,025.00 | ₩2,060.00 | ₩1,902.00 | 3,543,521 | |
| ₩2,155.00 | +10.00 | +0.5% | ₩2,190.00 | ₩2,250.00 | ₩2,090.00 | 3,670,401 | |
| ₩2,145.00 | -325.00 | -13.2% | ₩2,420.00 | ₩2,420.00 | ₩2,125.00 | 4,995,906 | |
| ₩2,470.00 | -90.00 | -3.5% | ₩2,680.00 | ₩2,680.00 | ₩2,420.00 | 7,975,325 | |
| ₩2,560.00 | +160.00 | +6.7% | ₩2,530.00 | ₩2,875.00 | ₩2,510.00 | 18,267,637 | |
| ₩2,400.00 | -95.00 | -3.8% | ₩2,555.00 | ₩2,665.00 | ₩2,290.00 | 8,988,294 | |
| ₩2,495.00 | -95.00 | -3.7% | ₩2,450.00 | ₩2,845.00 | ₩2,390.00 | 17,424,539 |
- Ticker
- KRX:069540
- Asset type
- Stock
- Exchange
- KRX
- Currency
- KRW
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