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QSI Co., Ltd. (066310) AI Stock Analysis
QSI Co., Ltd.
(Korea Exchange:066310)
The score is primarily supported by strong financial resilience (minimal leverage and improving free cash flow), but is held back by clear profitability/margin compression versus prior peaks and weak technical momentum with the price trading below all key moving averages.
QSI Co., Ltd. (066310) vs. SPDR S&P 500 ETF (SPY)
- Market Cap
- KRW 65.58B
- Dividend Yield
- 1.34%
- Average Volume (3M)
- 61.63K
- Price to Earnings (P/E)
- 16.7
- Beta (1Y)
- 0.35
- Revenue Growth
- 18.52%
- EPS Growth
- 268.71%
- Country
- KR
- Employees
- ―
- Sector
- General
- Sector Strength
- 55
- Industry
- Semiconductors
QSI Co., Ltd. Business Overview & Revenue Model
Company Description
QSI Co Ltd, a South Korean firm, primarily focuses on producing semiconductor laser diodes (LDs). Its product range features both Red Laser diodes and Infra-Red Laser diodes.
QSI Co., Ltd. Financial Statement Overview
Summary
Financial profile is anchored by an exceptionally strong balance sheet (very low leverage and a large equity base) and improving 2025 free cash flow, but operating performance has weakened meaningfully versus the 2022 peak with clear margin compression and much lower returns on equity.
Income Statement
62PositiveBalance Sheet
90Very PositiveCash Flow
72Positive| Breakdown | TTM | Dec 2025 | Dec 2024 | Dec 2023 | Dec 2022 | Dec 2021 |
|---|---|---|---|---|---|---|
Income Statement | ||||||
| Total Revenue | 23.79B | 23.28B | 21.36B | 18.69B | 22.70B | 29.38B |
| Gross Profit | 5.62B | 4.85B | 5.36B | 1.95B | 7.18B | 7.96B |
| EBITDA | 3.70B | 2.72B | 6.20B | 4.79B | 11.42B | 6.94B |
| Net Income | 4.57B | 2.52B | 3.25B | 2.71B | 7.01B | 1.56B |
Balance Sheet | ||||||
| Total Assets | 95.79B | 93.02B | 88.54B | 87.73B | 85.99B | 80.84B |
| Cash, Cash Equivalents and Short-Term Investments | 27.42B | 26.93B | 25.31B | 20.22B | 14.53B | 18.88B |
| Total Debt | 363.96M | 338.35M | 410.40M | 436.71M | 504.43M | 639.53M |
| Total Liabilities | 6.45B | 5.61B | 4.60B | 5.26B | 4.72B | 6.95B |
| Stockholders Equity | 89.34B | 87.41B | 83.94B | 82.47B | 81.26B | 73.90B |
Cash Flow | ||||||
| Free Cash Flow | 2.41B | 3.12B | 534.60M | 2.72B | 3.26B | 4.85B |
| Operating Cash Flow | 4.05B | 4.75B | 3.23B | 5.47B | 5.28B | 8.24B |
| Investing Cash Flow | -712.06M | -2.31B | 2.05B | -561.31M | -5.07B | -9.52B |
| Financing Cash Flow | 1.08B | 1.02B | -2.94B | -2.13B | -787.40M | -315.89M |
QSI Co., Ltd. Technical Analysis
Price Trends
Market Momentum
Evaluating momentum and price trends is crucial in stock analysis to make informed investment decisions. For KR:066310, the sentiment is Negative. The current price of 7270.00 is below the 20-day moving average (MA) of 7842.00, below the 50-day MA of 7680.40, and below the 200-day MA of 9349.65, indicating a bearish trend. The MACD of -145.81 indicates Positive momentum. The RSI at 41.71 is Neutral, neither overbought nor oversold. The STOCH value of 30.49 is Neutral, not indicating any strong overbought or oversold conditions. Overall, these indicators collectively point to a Negative sentiment for KR:066310.
QSI Co., Ltd. Peers Comparison
Overall Rating
- KR:06631066Neutral
KR:00316060Neutral
KR:01790057.5Neutral
KR:03654047Neutral
KR:05909046Neutral
KR:03671043Neutral
Financial Indicators
| Name | Overall Rating | Market Cap | P/E Ratio | ROE | Dividend Yield | Revenue Growth | EPS Growth |
|---|---|---|---|---|---|---|---|
| KR:066310 | 66Neutral | KRW 65.58B | 16.65 | ― | 1.34% | 18.52% | 268.71% |
| KR:003160 | 60Neutral | KRW 885.30B | 36.59 | ― | 0.64% | 31.71% | 93.23% |
| KR:017900 | 58Neutral | KRW 436.65B | 40.23 | ― | 0.58% | -1.18% | 182.59% |
| Sector * | 55Neutral | $6.65B | 3.83 | -15.92% | 6.20% | 10.91% | 7.18% |
| KR:036540 | 47Neutral | KRW 1.33T | -67.48 | ― | ― | 37.16% | -448.86% |
| KR:059090 | 46Neutral | KRW 730.71B | 65.20 | ― | ― | 60.44% | -39.57% |
| KR:036710 | 43Neutral | KRW 174.55B | -6.61 | ― | 0.40% | 33.56% | 63.40% |
* General Sector Average
Performance Comparison
| Show on chart | Ticker | Company Name | Price | Change | % Change |
|---|---|---|---|---|---|
| KR:066310 | QSI Co., Ltd. | 7210.00 | 278.19 | 4.01% | |
| KR:003160 | DI Corporation | 39000.00 | 15709.86 | 67.45% | |
| KR:017900 | AUK CORP. | 8670.00 | 6869.25 | 381.46% | |
| KR:036540 | SFA Semicon Co., Ltd. | 8100.00 | 3540.00 | 77.63% | |
| KR:036710 | SIMMTECH Holdings Co., Ltd. | 3435.00 | -405.34 | -10.55% | |
| KR:059090 | MiCo Ltd. | 23200.00 | 8400.00 | 56.76% |
Disclaimer
This AI Analyst Stock Report is automatically generated by our AI systems using advanced algorithms and publicly available financial, technical, and market data. While the information provided aims to be accurate and insightful, it is intended for informational purposes only and should not be considered financial advice. Any content created by an AI (Artificial Intelligence) system may contain inaccuracies and/or contain errors. Investing in stocks carries inherent risks, and past performance is not indicative of future results. This report does not account for your personal financial circumstances, objectives, or risk tolerance. Always conduct your own research or consult with a qualified financial advisor before making investment decisions. The analysis and recommendations provided are based on historical and current data and may not fully reflect future market conditions or unexpected developments. Neither the creators of this report nor its affiliated entities guarantee the accuracy, completeness, or reliability of the information presented. Use this report at your own discretion and risk.
Date of analysis: Oct 28, 2026