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AOSL · 10-K filed August 27, 2026

AOSL earnings analysis

What we found in AOSL's 10-K: the parts that mattered, the offsets in the same document, and what the company said about what comes next.

Our reading of the filing · Free to read, no account needed

AOS is pursuing diversification into AI, advanced computing, communications, industrial and power-management applications, supported by approximately 2,900 products, 961 issued U.S. patents and an integrated design, manufacturing and packaging model. However, fiscal 2026 revenue declined 2.5% to $678.9 million, gross margin fell to 22.3% from 23.1%, operating loss widened to $43.2 million and diluted EPS was negative $1.41; operating cash flow was also negative $16.3 million. Computing and Communication growth and the $147.7 million JV divestiture proceeds improved strategic flexibility, but PC and memory-market pressure, the Shanghai flood, distributor concentration and reduced control of JV manufacturing capacity leave the near-term outlook cautious.

What stood out

The parts that mattered.

Pulled out of the filing itself, with the figures the company reported.

Broad IP Base and AI Power Roadmap
AOS is broadening its technology portfolio: it has approximately 2,900 products, 961 issued U.S. patents and 78 pending U.S. patent applications. The roadmap includes multiphase controllers and smart power stages for personal computing, AI, graphics cards and gaming, as well as IGBTs, SiC, GaN and higher-voltage MOSFETs.
Computing and Communications Are Growing
Computing revenue increased 5.8% to $342.952 million and Communication revenue increased 6.8% to $132.278 million in fiscal 2026. Management also stated that Advanced Computing reached record penetration within the Computing segment, supported by AI and server demand.
Power IC Mix and Pricing Improved
Power IC revenue increased 1.7% to $233.870 million, while average selling prices for combined power discrete and power IC products increased 2.0% because of product-mix changes. This partially offset a 3.0% decline in unit shipments.
JV Monetization Strengthened Liquidity
The sale of approximately 20.3% of the Chongqing JV generated $147.652 million of cash proceeds and reduced AOS's ownership to 18.9%. The proceeds provide capital for technology investment, new product development and potentially complementary acquisitions.
Balance Sheet Deleveraging
Fiscal 2026 cash, cash equivalents and restricted cash increased to $181.425 million from $153.498 million, while the Oregon Fab term loan was repaid in full in August 2025 and total debt was $3.631 million at June 30, 2026.
Share Repurchases Resumed
AOS repurchased 941,883 shares for $18.2 million, or an average $19.22 per share, during fiscal 2026. Approximately $11.9 million remained available under the $30.0 million repurchase authorization at year-end.
What to watch

And the other side of it.

The offsets in the same document — the things a summary that only listed the good news would have left out.

Memory Shortage and PC Exposure
The filing identifies a severe memory-supply constraint in the first half of fiscal 2026, driven by AI infrastructure demand, as adversely affecting PC demand. Consumer revenue declined 18.9% to $83.008 million and Power Supply and Industrial revenue declined 12.2% to $113.419 million, while total revenue fell 2.5% to $678.927 million.
New Shanghai Flood Disruption
AOS disclosed that its Shanghai packaging and testing facilities were flooded by a strong typhoon in August 2026, temporarily suspending production and causing cleanup and outsourcing costs. The company does not have redundant, multiple-site capacity for a catastrophic event.
Reduced Control of Key JV Capacity
AOS no longer controls the Chongqing JV and owns only 18.9%; the JV may allocate capacity to other customers despite a specified monthly wafer-capacity commitment. The JV reported $2.577 million of net loss for the period ended March 31, 2026 and had $159.733 million of total liabilities, including $146.278 million of current liabilities.
Distributor and Channel Concentration
The company remains highly dependent on two distributors: WPG and Promate represented 72.3% of fiscal 2026 revenue. The related estimates were material, including a $38.699 million allowance for price adjustments and a $6.937 million stock-rotation accrual at June 30, 2026.
Persistent Losses and Margin Pressure
Profitability continues to deteriorate on a three-year basis: gross margin declined from 26.2% in fiscal 2024 to 23.1% in fiscal 2025 and 22.3% in fiscal 2026, while operating loss widened from $3.756 million to $28.436 million and then $43.195 million. Fiscal 2026 diluted EPS was negative $1.41.
The numbers

What they reported.

What the company itself reported, taken out of the document.

What survived to operating profit
Of every $100 of revenue Cost of sales $77 Operating expenses $29 Left as operating profit $-6
Percentages of revenue, taken from the filing. Drawn this way because it holds whatever scale the company reports in.
Earnings per share
$-1.41
Gross margin
22.3%
Operating margin
-6.4%
Segment
Single operating segment: design, development and supply of power semiconductor products
Segment
End markets: Computing $342.952 million; Consumer $83.008 million; Communication $132.278 million; Power Supply and Industrial $113.419 million
Segment
Product type: Power discrete $437.787 million; Power IC $233.870 million; Packaging and testing services and other $7.270 million; License and development services $0
Guidance

What they said about what is next.

The 10-K does not provide quantitative forward revenue or EPS guidance. Fiscal Q1 2027 guidance was provided in the August 12, 2026 earnings release rather than this filing.

How we read the filing overall

The filing reads worse than the one before it.

One reading of one document. It is not advice, and it is not a forecast.
Earlier filings

What came before.

10-Q · May 6, 2026
Alpha and Omega Semiconductor Limited (AOSL) reported Q3 FY2026 results with total revenue of $163.8 million, slightly exceeding estimates of $160.1 million. The company incurred a diluted EPS loss of $0.28, surpassing…
10-Q · February 6, 2025
Alpha and Omega Semiconductor reported quarterly revenue of $173,156,000 (three months ended December 31, 2024), up $7,871,000 (+4.8%) versus the year-ago quarter, but operating loss widened to $(5,908,000) and GAAP net…
10-Q · February 7, 2024
Alpha and Omega Semiconductor reported Q2 revenue of $165,285 (in thousands), down from $188,760 in the prior-year quarter, producing a gross margin decline to 26.6% and an operating loss of $(1,134) (in thousands). The…
10-K · August 29, 2023
Alpha and Omega Semiconductor (AOSL) positions itself as a designer/developer and global supplier of power semiconductors with an expanded portfolio of approximately 2,600 products and an extensive IP base (918 U.S.…

This is our reading of a public filing, not the filing. Read the original on SEC.gov · Educational only. Nothing here is investment advice.

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