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

South Korea flag South Korea · Delayed Price · Currency is KRW
10,140
+230 (2.32%)
Mar 20, 2026, 3:30 PM KST
Market Cap87.63B +9.0%
Revenue (ttm)22.58B +9.7%
Net Income1.97B +111.0%
EPS222.31 +116.1%
Shares Out8.84M
PE Ratio44.58
Forward PEn/a
Dividend100.00 (1.01%)
Ex-Dividend DateDec 29, 2025
Volume121,742
Average Volume363,824
Open9,930
Previous Close9,910
Day's Range9,900 - 10,220
52-Week Range6,610 - 10,620
Beta0.88
RSI64.26
Earnings DateMar 24, 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]

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

Financial Performance

In 2024, Q.S.I Co., LTD.'s revenue was 21.36 billion, an increase of 14.32% compared to the previous year's 18.69 billion. Earnings were 3.25 billion, an increase of 19.98%.

Financial Statements