AOSL
TechnologyAlpha and Omega Semiconductor Limited · Semiconductors · $1B
What is Alpha and Omega Semiconductor Limited?
Alpha and Omega Semiconductor designs and supplies power semiconductor products used across computing, consumer electronics, communications, and industrial markets. Headquartered in Sunnyvale, California, the company sells its products globally, with significant exposure to Asia-Pacific markets.
The company generates revenue by developing and selling power discrete components and power integrated circuits to manufacturers of smartphones, laptops, servers, data center equipment, electric vehicles, and industrial systems. Its products manage how electricity flows and is regulated inside electronic devices. Customers rely on AOSL components to improve energy efficiency and protect sensitive electronics from voltage irregularities. The business operates across multiple geographies, with a heavy concentration in Hong Kong, China, South Korea, and the United States.
Alpha and Omega Semiconductor was founded in 2010 and is headquartered in Sunnyvale, California.
- MOSFET and XSFET power discrete semiconductors for chargers and battery packs
- Power ICs for voltage regulation in displays, servers, and networking gear
- aMOS5 MOSFET platform for datacenter and industrial power applications
- Transient Voltage Suppressors protecting laptops and consumer electronics
- EZBuck regulators and Type-C power delivery protection switches
Is AOSL a Good Stock to Buy?
UQS Score rates AOSL as Poor overall, placing it in the lowest tier of our composite ranking system.
The one area where AOSL stands out relative to its overall profile is Risk, which is rated Strong — suggesting the balance sheet and near-term financial stability are less concerning than other dimensions of the business.
Quality, Moat, and Growth are all rated Weak, indicating the company faces meaningful challenges in profitability consistency, competitive differentiation, and revenue expansion. Valuation is rated Elevated, meaning the current price does not appear to compensate for these weaknesses.
Pro members can view the complete pillar breakdown and underlying financial metrics to understand exactly where AOSL stands against sector peers. Sign up free →
Past performance does not guarantee future results. UQS Score is based on fundamental data and is not a buy/sell recommendation.
Does AOSL pay dividends?
No — Alpha and Omega Semiconductor Limited does not currently pay a dividend.
AOSL does not currently pay a dividend. For a small-cap semiconductor company operating in a capital-intensive design and manufacturing environment, retaining cash for product development and operational needs is a common approach. Income-focused investors should be aware that no distributions are made to shareholders at this time.
When does AOSL report earnings?
Alpha and Omega Semiconductor reports earnings on a quarterly cadence, consistent with standard practice for US-listed equities.
Given the Weak ratings across Quality and Growth pillars, recent earnings cycles have reflected ongoing pressure on profitability and top-line expansion. The semiconductor industry's cyclical nature adds further variability to quarterly results.
For the most recent quarter's results and forward guidance, visit Alpha and Omega Semiconductor's investor relations page directly.
AOSL Price History
+21.5% over 5Y
Monthly close, adjusted for stock splits and dividend reinvestment.
What if I invested in Alpha and Omega Semiconductor Limited?
Based on Alpha and Omega Semiconductor Limited's historical closing prices, adjusted for stock splits and dividend reinvestment. Past performance does not guarantee future results. This is for informational purposes only and is not financial advice.
AOSL Long-term Outlook
The combination of Weak Growth and Weak Quality ratings suggests the near-term fundamental outlook for AOSL remains challenged. The company operates in end markets — including consumer electronics and industrial power — that are subject to inventory cycles and demand fluctuations. An Elevated Valuation rating further complicates the picture, as the current market price appears to leave limited room for error. The Strong Risk rating does provide some reassurance that the company is not in immediate financial distress, but sustained improvement across the other pillars would be needed to shift the overall UQS profile meaningfully.
Growth drivers
- Expanding adoption of power-efficient semiconductors in electric vehicles and industrial motor drives
- Growing datacenter and server power management demand for MOSFET and power IC products
- Increasing complexity of USB Type-C and fast-charging ecosystems driving component content per device
Key risks
- Weak Moat rating signals limited pricing power against larger, better-resourced semiconductor competitors
- Elevated Valuation leaves the stock vulnerable to downside if growth expectations are not met
- Heavy geographic concentration in Asia-Pacific markets introduces geopolitical and supply chain risk
AOSL vs Peers
AOSL competes in the broader power semiconductor and chip design space alongside several other specialized players.
Arteris focuses on semiconductor network-on-chip interconnect IP rather than discrete power components, targeting a different layer of the chip design stack.
Wolfspeed specializes in silicon carbide power devices, giving it a distinct materials-based position in high-voltage applications like electric vehicles and grid infrastructure.
POET Technologies develops optical semiconductor platforms, operating in photonics rather than traditional power discrete or power IC markets.
Frequently Asked Questions
What does Alpha and Omega Semiconductor do?
Alpha and Omega Semiconductor designs and sells power semiconductor products — including MOSFETs, power ICs, and voltage suppressors — used in smartphones, laptops, servers, electric vehicles, and industrial equipment. The company helps electronic devices manage and regulate electrical power efficiently and safely.
Does AOSL pay dividends?
AOSL does not pay a dividend. The company retains its cash for operational and product development purposes, which is common among small-cap semiconductor firms competing in a capital-intensive industry. Investors seeking regular income distributions should factor this into their assessment.
When does AOSL report earnings?
Alpha and Omega Semiconductor follows a standard quarterly earnings reporting schedule. Specific upcoming dates are not covered by our data source — check the company's investor relations page or a financial calendar for confirmed report dates.
Is AOSL a good stock to buy?
UQS Score rates AOSL as Poor, reflecting Weak ratings across Quality, Moat, and Growth pillars alongside an Elevated Valuation. The Strong Risk rating is a relative positive, but the overall profile suggests meaningful fundamental challenges. Pro members can access the full breakdown to evaluate further.
Is AOSL overvalued?
The UQS Valuation pillar for AOSL is rated Elevated, indicating the stock's current price appears high relative to the underlying fundamental profile. When paired with Weak Quality and Growth ratings, the valuation leaves limited margin of safety for investors.
How does AOSL compare to its competitors?
AOSL competes in a fragmented power semiconductor landscape. Wolfspeed targets high-voltage silicon carbide applications, Arteris focuses on chip interconnect IP, and POET Technologies operates in photonics. Each addresses different market segments, making direct comparisons nuanced. The full UQS comparison is available to Pro members.
What is AOSL's market cap bracket?
AOSL is classified as a small-cap stock. This places it in a segment of the market that often carries higher volatility and liquidity risk compared to large- or mega-cap semiconductor peers, though it may also offer different risk-return dynamics for investors with appropriate risk tolerance.
Who founded Alpha and Omega Semiconductor?
Alpha and Omega Semiconductor was founded in 2010. Detailed founding history, including the names of founders, is publicly available through the company's official disclosures and investor relations materials.
Is AOSL a long-term quality investment?
From a UQS quality perspective, AOSL's long-term profile is challenged. Weak ratings in Quality, Moat, and Growth suggest the business has not yet demonstrated the durable competitive advantages or consistent profitability typically associated with strong long-term compounders. The Strong Risk rating is a stabilizing factor worth noting.
What is the main competitive advantage of Alpha and Omega Semiconductor?
AOSL's Moat pillar is rated Weak, suggesting limited durable competitive advantages at this time. The company does offer a broad product portfolio spanning multiple power semiconductor categories and end markets, which provides some diversification, but this has not translated into a strong moat rating under the UQS framework.
What sector does AOSL belong to?
AOSL operates in the Technology sector, specifically within the power semiconductor subsegment. Its products serve computing, consumer electronics, communications, and industrial end markets — giving it exposure to several technology-driven demand cycles simultaneously.
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Pro Analysis
AOSL — Score History
| Date | UQS | Quality | Moat | Growth | Risk | Value | Change |
|---|---|---|---|---|---|---|---|
| May 23, 2026 | 17.1 | 4.4 | 10.0 | 5.7 | 82.4 | 0.0 | -1.2 |
| May 22, 2026 | 18.3 | 4.4 | 10.0 | 5.7 | 82.4 | 7.8 | -0.2 |
| May 21, 2026 | 18.5 | 4.4 | 10.0 | 5.7 | 82.4 | 9.1 | +0.2 |
| May 20, 2026 | 18.3 | 4.4 | 10.0 | 5.7 | 82.4 | 8.1 | +0.9 |
| May 19, 2026 | 17.4 | 4.4 | 10.0 | 5.7 | 82.4 | 2.0 | +0.1 |
| May 18, 2026 | 17.3 | 4.4 | 10.0 | 5.7 | 82.4 | 1.2 | 0.0 |
| May 16, 2026 | 17.3 | 4.4 | 10.0 | 5.7 | 82.4 | 1.3 | +0.2 |
| May 14, 2026 | 17.1 | 4.4 | 10.0 | 5.7 | 82.4 | 0.0 | -1.5 |
| May 12, 2026 | 18.6 | 4.4 | 10.0 | 5.7 | 82.4 | 9.7 | +0.9 |
| May 11, 2026 | 17.7 | 4.4 | 10.0 | 5.7 | 82.4 | 4.1 | -4.8 |
AOSL — Pillar Breakdown
Quality
— 4.4/100 (25%)Alpha and Omega Semiconductor Limited currently shows below-average quality metrics, suggesting challenges with profitability.
How effectively capital is deployed to generate returns.
Profitability relative to shareholders' equity.
Ability to convert revenue into operating profit.
Bottom-line profit as a share of revenue.
Asset productivity — how much gross profit each dollar of assets generates.
Free cash flow relative to market value.
Growth
— 5.7/100 (20%)Alpha and Omega Semiconductor Limited faces growth headwinds with declining or stagnant revenue trends.
Revenue trajectory over the last twelve months.
Compound annual revenue growth rate over 3 years.
Year-over-year earnings per share growth.
Analyst consensus for future revenue growth.
Risk
— 82.4/100 (15%)Alpha and Omega Semiconductor Limited carries minimal financial risk with conservative leverage and strong solvency.
Debt levels relative to earnings capacity.
Total debt relative to shareholder equity.
Short-term liquidity — ability to pay near-term obligations.
Earnings capacity relative to interest payments.
Valuation
— 0.0/100 (15%)Alpha and Omega Semiconductor Limited appears expensively valued relative to its fundamentals and growth prospects.
Enterprise value multiple relative to sector median.
Moat
— 10/100 (25%)Alpha and Omega Semiconductor Limited operates in a highly competitive environment with limited sustainable advantages. The Moat pillar evaluates competitive advantages across five dimensions: Switching Costs, Network Effects, Cost Advantage, Intangible Assets, and Scale & Ecosystem. Sign in to customize moat ratings for AOSL.
Score Composition
Financial Data
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How is the AOSL UQS Score Calculated?
The UQS (Unified Quality Score) for Alpha and Omega Semiconductor Limited is calculated using a proprietary 6-pillar framework with 29 financial metrics. Each pillar evaluates a different dimension on a 0–100 scale, then combines into a single weighted score. Scoring thresholds are calibrated per sector. Momentum is an optional Pro toggle — without it, you get the 5-pillar / 25-metric core shown below.
Quality (25%) measures profitability and capital efficiency — ROIC, ROE, margins, GP/Assets, and FCF Yield.
Moat (25%) assesses Alpha and Omega Semiconductor Limited's competitive advantages across switching costs, network effects, cost advantages, intangible assets, and ecosystem scale.
Growth (20%) tracks revenue trajectory and earnings momentum, combining historical results with analyst forward estimates.
Risk (15%) is inversely scored — lower leverage and strong balance sheet health result in higher scores.
Valuation (15%) measures whether Alpha and Omega Semiconductor Limited is fairly priced using earnings yield, price-to-FCF, PEG ratio, and EV/EBITDA relative to sector peers.
Six investor-inspired presets are available, each with different pillar weights: Balanced, Buffett, Munger, Lynch, Cathie Wood, and Graham. The public score shown here uses the Balanced preset. Learn more in our FAQ.