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Nasdaq · Technology

ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL)

As-reported financials and SEC filings for ALPHA & OMEGA SEMICONDUCTOR Ltd. The latest annual period is FY2026. The latest reported quarter is Q4 FY2026. Financial statements come straight from the company’s EDGAR filings; valuation figures such as P/E and market cap use market data.

About ALPHA & OMEGA SEMICONDUCTOR Ltd

Alpha & Omega Semiconductor Ltd designs, develops, and supplies a broad range of power semiconductors, including MOSFETs, IGBTs, and power integrated circuits. Its products serve high-volume applications such as personal computers, smartphones, home appliances, power tools, and telecommunications equipment. The company operates manufacturing facilities in the United States and Asia and supports customers worldwide with localized sales and technical teams.

Snapshot

Revenue
$678.9M
Revenue growth (YoY)
-2.5%
Net income
$-42.3M
Diluted EPS
$-1.41
Gross margin
22.3%
Operating margin
-6.4%
Net margin
-6.2%
FCF margin
-10.0%
ROE
-5.3%
net income / fiscal-year-end equity
P/E
n/m
not meaningful: a reported loss in the fiscal year or the trailing twelve months
Market cap
$659.1M
Long-term debt / equity
0.00×
non-current term debt only

Fundamentals are from SEC filings for FY2026, the latest annual period (ended June 30, 2026). P/E and market cap are derived from stored market prices, last retrieved on a rolling basis and typically within the past week.

What changed at ALPHA & OMEGA SEMICONDUCTOR

  • Revenue fell 2.5% to $679M in FY2026, slower than the 5.9% the year before.
  • Operating margin is now a 6.4% loss in FY2026, from 13.1% in FY2022.
  • Most recent quarter Q4 FY2026: revenue $170M, down 3.5% from Q4 FY2025.
  • Free cash flow was negative $68M in FY2026.
  • Net loss narrowed to $42M in FY2026, from $97M in FY2025.

Computed from the as-reported figures in the statements below. A change we cannot state from filed figures is left out rather than estimated.

Peer comparison

Where ALPHA & OMEGA SEMICONDUCTOR’s fundamentals sit among the 89 semiconductor companies. Each figure is ranked only against peers that report it, from lowest (left) to highest (right).

Gross margin22.3%
19th percentile of 79
Operating margin-6.4%
32nd percentile of 80
Net margin-6.2%
31st percentile of 81
FCF margin-10.0%
21st percentile of 79
Revenue growth (YoY)-2.5%
21st percentile of 88
ROE-5.3%
31st percentile of 76
Long-term debt / equity0.00×
9th percentile of 46
Short interest4.96d
75th percentile of 89

ALPHA & OMEGA SEMICONDUCTOR’s long-term debt to equity of 0.00 ranks in the 9th percentile of the 46 semiconductor companies reporting it.

No reported insider transactions (codes P/S) in the last 90 days. For context, about 15% of companies in the universe saw any reported insider purchase (code P) in the same window. Browse insider activity →

Percentiles describe where a figure sits among industry peers reporting it (100th = highest). They are position within a peer group, not a rating, and not investment advice. Short interest ranking uses days to cover from FINRA Consolidated Short Interest data; FINRA is the owner and source of that data, included at no additional charge.

Recent insider activity

Non-derivative buys and sells (codes P/S) reported by officers, directors and 10% owners on SEC Form 4.

Buys (90d)
0
code P
Bought (90d)
—
code P value
Sells (90d)
0
—
Reported activity
Quiet
by $ value, 90d
Trade dateInsiderTypeSharesPriceValue
2026-07-16
filed 2026-07-17
Bing XueEVP-WW Sales & Bus DevelopmentSell875$33.99$30K
2026-06-16
filed 2026-06-17
Bing XueEVP-WW Sales & Bus DevelopmentSell4.9K$47.09$231K
2026-05-22
filed 2026-05-26
Claudia ChenDirectorSell3.8K$39.47$152K
2026-05-22
filed 2026-05-26
Claudia ChenDirectorSell217$40.54$9K
2026-05-18
filed 2026-05-20
Bing XueEVP-WW Sales & Bus DevelopmentSell4.9K$41.00$202K
2026-04-17
filed 2026-04-20
Stephen Chunping ChangChief Executive OfficerSell9.9K$34.90$346K
2026-04-17
filed 2026-04-20
Yifan LiangCFO and Corp SecretarySell8.6K$35.00$302K
2026-04-17
filed 2026-04-20
Stephen Chunping ChangChief Executive OfficerSell3.5K$33.90$118K
2026-04-17
filed 2026-04-20
Stephen Chunping ChangChief Executive OfficerSell1.5K$32.90$49K
2026-04-16
filed 2026-04-20
Bing XueEVP-WW Sales & Bus DevelopmentSell1.8K$31.21$57K
2026-04-14
filed 2026-04-16
Yifan LiangCFO and Corp SecretarySell11.2K$32.00$358K
2026-04-14
filed 2026-04-16
Yifan LiangCFO and Corp SecretarySell7.9K$30.00$238K

Reported non-derivative purchases and sales (codes P/S), which may be open-market or private. Excludes option exercises, grants, and shares withheld for taxes. Dates shown are the trade date; a Form 4 can be filed days to years later. A sale can be routine (e.g. a pre-set 10b5-1 plan), so read individual transactions in context. From SEC Form 4. Not investment advice.

Short interest

Total shares sold short as of each twice-monthly FINRA settlement. Rising short interest means more investors are positioned against the stock; days to cover estimates how many trading days of average volume that position represents.

Shares short
2.9M
settled 2026-09-30
Change vs prior
+0.8%
vs previous settlement
Days to cover
4.96
at avg daily volume
Avg daily volume
594.8K
FINRA reported
SettlementShares shortChangeDays to cover
2026-09-302.9M+0.8%4.96
2026-09-152.9M+11.5%5.83
2026-08-312.6M-14.3%4.41
2026-08-143.1M-7.7%5.08
2026-07-313.3M+29.4%5.31
2026-07-152.6M+4.9%3.95
2026-06-302.4M+16.2%2.64
2026-06-152.1M+0.5%2.26

Source: FINRA Consolidated Short Interest. FINRA is the owner and source of the FINRA-supplied data, which is included at no additional charge for your own personal or professional use; republishing or redistributing it is not permitted. Settlement dates are shown; FINRA publishes each settlement about nine business days later, so the latest figure can be two to four weeks old. Not presented as a percentage of float. No FINRA endorsement of this product is implied. Not investment advice.

Income statement (as reported)

 FY2026FY2025FY2024FY2023FY2022
Revenue$678.9M$696.2M$657.3M$691.3M$777.6M
Gross profit
Operating income$-43.2M$-28.4M$-3.8M$22.5M$102.0M
Net income$-42.3M$-97.0M$-11.1M$12.4M$453.2M
Diluted EPS$-1.41$-3.30$-0.39$0.42$16.07

Figures as reported to the SEC. Underlined values link to the filing they came from; dotted values are calculated by us from reported figures; “adj” means restated for a stock split (tap or hover a figure to see how it was calculated or what was filed). Full details: where the numbers come from.

Balance sheet (as reported)

Figures as reported to the SEC. Underlined values link to the filing they came from; dotted values are calculated by us from reported figures; “adj” means restated for a stock split (tap or hover a figure to see how it was calculated or what was filed). Full details: where the numbers come from.

Cash flow (as reported)

 FY2026FY2025FY2024FY2023FY2022
Operating cash flow$-16.3M$29.7M$25.7M$20.5M$218.9M
Capital expenditure$51.8M$37.2M$37.1M$110.4M$138.0M
Free cash flow

Figures as reported to the SEC. Underlined values link to the filing they came from; dotted values are calculated by us from reported figures; “adj” means restated for a stock split (tap or hover a figure to see how it was calculated or what was filed). Full details: where the numbers come from.

Quarterly trend

QuarterRevenueRevenue YoYNet incomeDiluted EPS
Q4 FY2026-3.5%
Q3 FY2026$163.8M-0.5%$-13.8M$-0.46
Q2 FY2026$162.3M-6.3%$-13.3M$-0.45
Q1 FY2026$182.5M0.3%$-2.1M$-0.07
Q4 FY20259.4%
Q3 FY2025$164.6M9.7%$-10.8M$-0.37
Q2 FY2025$173.2M4.8%$-6.6M$-0.23
Q1 FY2025$181.9M0.7%$-2.5M$-0.09

Latest 8 quarters, from company XBRL filings on SEC EDGAR. A dotted underline marks a fourth-quarter figure we calculated from the full year and the first nine months. Revenue YoY is our calculation too: each quarter against the same quarter a year earlier.

Company facts

ExchangeNasdaq
SectorTechnology
SIC industrySemiconductors & Related Devices
Latest annual periodFY2026 (ended June 30, 2026)
Latest reported quarterQ4 FY2026 (ended June 30, 2026)
Oldest indexed filing2007
SEC CIK1387467

Selected SEC filings

10-K2026-08-27
View on EDGAR →
10-Q2026-05-06
View on EDGAR →
8-K2026-08-12
View on EDGAR →
8-K2026-07-10
View on EDGAR →
8-K2026-05-12
View on EDGAR →
8-K2026-05-06
View on EDGAR →

Largest semiconductor peers

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Data sourced from SEC EDGAR. Figures are as-reported and may be unaudited or restated; verify against the source filing before relying on them. Informational only. Not investment advice.