Q.S.I (A066310) Stock Overview
Develops, manufactures, and sells red and infra-red laser diodes in South Korea and internationally. More details
| Snowflake Score | |
|---|---|
| Valuation | 0/6 |
| Future Growth | 0/6 |
| Past Performance | 3/6 |
| Financial Health | 6/6 |
| Dividends | 3/6 |
A066310 Community Fair Values
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Q.S.I Co., LTD. Competitors
Price History & Performance
| Historical stock prices | |
|---|---|
| Current Share Price | ₩8,010.00 |
| 52 Week High | ₩12,440.00 |
| 52 Week Low | ₩5,500.00 |
| Beta | 0.85 |
| 1 Month Change | 2.43% |
| 3 Month Change | -3.26% |
| 1 Year Change | 12.34% |
| 3 Year Change | -16.30% |
| 5 Year Change | -51.75% |
| Change since IPO | -30.95% |
Recent News & Updates
Why Q.S.I's (KOSDAQ:066310) Earnings Are Better Than They Seem
Mar 24
Subdued Growth No Barrier To Q.S.I Co., LTD. (KOSDAQ:066310) With Shares Advancing 26%
Dec 27Recent updates
Why Q.S.I's (KOSDAQ:066310) Earnings Are Better Than They Seem
Mar 24Subdued Growth No Barrier To Q.S.I Co., LTD. (KOSDAQ:066310) With Shares Advancing 26%
Dec 27Q.S.I Co., LTD.'s (KOSDAQ:066310) Popularity With Investors Is Under Threat From Overpricing
Nov 12Q.S.I's (KOSDAQ:066310) Weak Earnings May Only Reveal A Part Of The Whole Picture
Mar 18There Are Reasons To Feel Uneasy About Q.S.I's (KOSDAQ:066310) Returns On Capital
Mar 30Is Q.S.I (KOSDAQ:066310) Using Too Much Debt?
Feb 23Is Quantum Semiconductor International's (KOSDAQ:066310) 197% Share Price Increase Well Justified?
Jan 19Is Quantum Semiconductor International (KOSDAQ:066310) Set To Make A Turnaround?
Dec 15
Shareholder Returns
| A066310 | KR Semiconductor | KR Market | |
|---|---|---|---|
| 7D | 0.3% | 11.6% | 3.3% |
| 1Y | 12.3% | 87.0% | 32.8% |
Return vs Industry: A066310 underperformed the KR Semiconductor industry which returned 82.6% over the past year.
Return vs Market: A066310 underperformed the KR Market which returned 32.6% over the past year.
Price Volatility
| A066310 volatility | |
|---|---|
| A066310 Average Weekly Movement | 3.5% |
| Semiconductor Industry Average Movement | 6.8% |
| Market Average Movement | 4.9% |
| 10% most volatile stocks in KR Market | 10.3% |
| 10% least volatile stocks in KR Market | 2.4% |
Stable Share Price: A066310 has not had significant price volatility in the past 3 months compared to the KR market.
Volatility Over Time: A066310's weekly volatility (4%) has been stable over the past year.
About the Company
| Founded | Employees | CEO | Website |
|---|---|---|---|
| 2000 | 105 | Cheong-Dae Lee | www.qsilaser.com |
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.
Q.S.I Co., LTD. Fundamentals Summary
| A066310 fundamental statistics | |
|---|---|
| Market cap | ₩70.83b |
| Earnings (TTM) | ₩1.71b |
| Revenue (TTM) | ₩21.75b |
Is A066310 overvalued?
See Fair Value and valuation analysisEarnings & Revenue
| A066310 income statement (TTM) | |
|---|---|
| Revenue | ₩21.75b |
| Cost of Revenue | ₩16.91b |
| Gross Profit | ₩4.83b |
| Other Expenses | ₩3.13b |
| Earnings | ₩1.71b |
Last Reported Earnings
Jun 30, 2025
Next Earnings Date
n/a
| Earnings per share (EPS) | 193.21 |
| Gross Margin | 22.23% |
| Net Profit Margin | 7.86% |
| Debt/Equity Ratio | 0% |
How did A066310 perform over the long term?
See historical performance and comparisonDividends
Company Analysis and Financial Data Status
| Data | Last Updated (UTC time) |
|---|---|
| Company Analysis | 2025/10/07 06:42 |
| End of Day Share Price | 2025/10/02 00:00 |
| Earnings | 2025/06/30 |
| Annual Earnings | 2024/12/31 |
Data Sources
The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.
| Package | Data | Timeframe | Example US Source * |
|---|---|---|---|
| Company Financials | 10 years |
| |
| Analyst Consensus Estimates | +3 years |
|
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| Market Prices | 30 years |
| |
| Ownership | 10 years |
| |
| Management | 10 years |
| |
| Key Developments | 10 years |
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* Example for US securities, for non-US equivalent regulatory forms and sources are used.
Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.
Analysis Model and Snowflake
Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.
Learn about the world class team who designed and built the Simply Wall St analysis model.
Industry and Sector Metrics
Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.
Analyst Sources
Q.S.I Co., LTD. is covered by 1 analysts. 0 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.
| Analyst | Institution |
|---|---|
| Seung Wook Lee | SK Securities Co., Ltd. |