QSI Co Ltd (066310)

Currency in KRW
7,260
-200(-2.68%)
Delayed Data·
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Fair Value
Day's Range
7,2107,460
52 wk Range
5,36022,750
Key Statistics
Bid/Ask
7,250.00 / 7,310.00
Prev. Close
7,460
Open
7,450
Day's Range
7,210-7,460
52 wk Range
5,360-22,750
Volume
9.22K
Average Volume (3m)
210.5K
1-Year Change
-9.4881%
Fair Value
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Fair Value Upside
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066310 Scorecardpro icon
Company’s Health
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Fair Value
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Fair Price
Upside
Analysts Sentiment
Currently not supported.
Members' Sentiments
Bearish
Bullish
ProTips
Trading at a low Price / Book multiple

Technical Analysis

Summary
Strong Sell
Sell
Neutral
Buy
Strong Buy
Strong Buy
Technical Indicators
Strong Buy
Moving Averages
Buy

Earnings

Latest Release
14/05/2026
EPS / Forecast
248.00 / --
Revenue / Forecast
6.14B / --
EPS Revisions
Last 90 days

Dividends

Payout Ratio
Payout ratio (TTM)
Earnings retained
EPS 508.41%
Dividend Yield
1.43%
Industry Median 0.24%
Annualised payout
100.00
Paid annually
5-Years Growth
+14.87%
Growth Streak

QSI (066310) Income Statement & Profits

Compare 066310 to Peers and Sector

Metrics to compare
066310
Peers
Sector
Relationship
P/E Ratio
14.4x14.6x12.5x
PEG Ratio
0.090.020.01
Price/Book
0.7x0.9x2.4x
Price / LTM Sales
2.8x1.5x2.2x
Upside (Analyst Target)
-52.9%33.2%
Fair Value Upside
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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.

Ownership

Ownership Overview

Type
Common Stock Held% of Shares OutstandingMarket Value
Mutual Funds & ETFs
0.000.00%0.00
Other Institutional Investors
3.27M37.01%21.24B
Public Companies & Retail Investors
5.57M62.99%36.15B
Total
8.84M100.00%57.39B

Top Holders

Holder
% of holding
Shares Held
Date Reported
Value (In 1,000s)
Samhwa Yangheng Co. Ltd32.46%2,870,52818,629,727
The Korea Securities Finance Corporation4.54%401,6492,606,702

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FAQ

What Is the QSI (KOSDAQ: 066310) Share Price Today?

The QSI stock price today is 7,260 KRW.

What Stock Exchange Does QSI (066310) Trade On?

QSI is listed and trades on the KOSDAQ.

What Is the Ticker (Stock Symbol) for QSI?

The stock symbol (also called a 'ticker') for QSI is "066310."

Does QSI Pay Dividends? What’s The Current 066310 Dividend Yield?

Yes, 066310 Pays Dividends to its Shareholders. The current QSI dividend yield is 1.34%.

What Is the Current QSI Market Capitalisation?

As of today, QSI (KOSDAQ: 066310) market cap is 65.96B KRW.

What Is QSI's (066310) Earnings Per Share (TTM)?

The QSI EPS is currently 508 (Trailing Twelve Months).

Is 066310 a Buy or Sell From a Technical Analyst Perspective?

Based on today's QSI moving averages and other technical indicators, the daily buy/sell signal for 066310 stock is Neutral.

How Many Times Has QSI Stock Split?

QSI has split 0 times. (See the 066310 stock split history page for full effective split date and price information.)

How Many Employees Does QSI Have?

QSI has 105 employees, based on their latest Companies House report.

What is the current trading status of QSI (KOSDAQ: 066310)?

As of 06/08/2026, QSI (066310) is trading at a share price of 7,260 KRW, with a previous close of 7,460 KRW. The stock has fluctuated within a day range of 7,210 KRW to 7,460 KRW, while its 52-week range spans from 5,360 KRW to 22,750 KRW.
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