Q.S.I Co., LTD. (KOSDAQ:066310)

South Korea flag South Korea · Delayed Price · Currency is KRW
15,170
+410 (2.78%)
Apr 29, 2026, 3:30 PM KST
83.21%
Market Cap 130.51B
Revenue (ttm) 23.28B
Net Income (ttm) 2.52B
Shares Out 8.84M
EPS (ttm) 282.00
PE Ratio 52.34
Forward PE n/a
Dividend 100.00 (0.67%)
Ex-Dividend Date Dec 29, 2025
Volume 345,053
Average Volume 1,991,306
Open 14,760
Previous Close 14,760
Day's Range 14,320 - 15,170
52-Week Range 6,610 - 22,750
Beta 0.58
RSI 57.40
Earnings Date May 14, 2026

About Q.S.I Co., LTD.

Q.S.I Co., LTD. develops, manufactures, and sells red and infra-red laser diodes in South Korea and internationally. The company also provides foundry services, that includes Epi wafers, wafer foundry services, and package services. Its laser diodes are used in power tools, medical, motion recognition, laser printers, lidar, and various sensors. The company was founded in 2000 and is based in Cheonan-si, South Korea. [Read more]

Industry Semiconductors
Sector Technology
Founded 2000
Employees 105
Stock Exchange KOSDAQ
Ticker Symbol 066310
Full Company Profile

Financial Performance

In 2025, Q.S.I Co., LTD.'s revenue was 23.28 billion, an increase of 8.98% compared to the previous year's 21.36 billion. Earnings were 2.52 billion, a decrease of -22.67%.

Financial Statements

News

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