The Moat Index

Alpha and Omega Semiconductor Limited

AOSL · Technology · $938.4M mkt cap · FY2025 filings · No moat ·

Doesn't clear the bar

27/ 100
No moat

The four filters

Pricing power31

Median gross margin 25.9% over 10y, stable.

Returns on capital7

Median ROIC 1.4%, above the 9% hurdle in 20% of years.

Balance-sheet safety55

Net cash position — no leverage risk.

Capital discipline24

Owner earnings trend unclear, share count growing (dilution).

Margin of safety

Above valueOn sale
583% above value
Owner earnings (normalized)
$12.4M
Est. intrinsic value / share
$4.58
Recent price
$31.27
Discount to value
583% above value

Conservative model: 9% discount rate, 0% assumed growth (capped at 4%), maintenance capex ≈ min(capex, D&A).

17 years of fundamentals

The business, in plain English

Alpha and Omega Semiconductor Limited booked $696.2M of revenue in FY2025 in the Technology sector and kept 23.1% of it as gross profit — a moderate-margin business by that measure. After every other cost, −13.9% of each revenue dollar reached the bottom line.

Across the filed record, revenue grew from $301.8M (FY2010) to $696.2M (FY2025) — about 5.7% a year compounded over 15 years.

It earned −3.2% on invested capital in FY2025, with a median of 1.4% across 16 filed years. The Returns on Capital filter above scores it 7/100.

The balance sheet carried $26.8M of total debt in FY2025. Balance-Sheet Safety scores it 55/100.

The share count rose 22.2% between FY2011 and FY2025 — existing owners have been diluted over the record. Capital Discipline scores it 24/100.

Put together: Balance-Sheet Safety is the strongest of the four filters (55/100) and Returns on Capital the weakest (7/100), which is how AOSL lands at 27/100 — a None moat.

This breakdown is generated from the filed numbers and sub-scores above — no outside narrative, no estimates. Where a filing doesn’t disclose an input, the sentence that would need it is omitted instead of guessed.

FY2009–FY2025 · 17 fiscal years, normalized from AOSL’s SEC filings

RevenueSales, as filed$696.2M FY2025
$0$500M2009201520212025
Gross marginRevenue kept after cost of goods23.1% FY2025
0%20%2009201520212025
Return on invested capitalOperating profit on the capital employed−3.2% FY2025
0%25%2009201520212025
Owner earningsCash an owner could take out−$71.8M FY2025
$0$250M2009201520212025

Gaps in a line mean that item isn’t in AOSL’s filings for that year — the series is never interpolated or estimated. The Table view lists every filed value, including operating and net margins, total debt, and share count.

Moat Score history

3 logged readings since Jul 17, 2026 · append-only, never rewritten

Moat Score over timeLast scored reading of each day, on the 0–100 scale27.3 / 100
0406080100WideNarrowShallowNo moatJul 17, 2026

Score history begins Jul 17, 2026 — the record builds from here and can’t be backfilled.

Tier changesSame-methodology crossings of the Wide / Narrow / Shallow bars

None yet — AOSL has read No moat for every logged capture since Jul 17, 2026.

Scores are logged append-only and never overwritten — this record can’t be backfilled, which is exactly why it’s worth keeping.

Technology context

#442 of 532 scored Technology companies, ranked by Moat Score.

Nearest peers by Moat Score

  1. #440KELYA KELLY SERVICES, INC.27.5 out of 100, No moatNo moat
  2. #441VREX VAREX IMAGING CORPORATION27.4 out of 100, No moatNo moat
  3. #443XYZ Block, Inc.27.1 out of 100, No moatNo moat
  4. #444FOUR SHIFT4 PAYMENTS, INC.27.1 out of 100, No moatNo moat

Compare AOSL with its nearest peersAll Technology companies on the Index →

Common questions about AOSL

Does Alpha and Omega Semiconductor Limited have an economic moat?
Based on its FY2025 SEC filings, the Moat Index scores Alpha and Omega Semiconductor Limited (AOSL) 27.3 out of 100 — below the Shallow-moat bar, so no moat. The four filters behind that score (each 0–100): pricing power 31, returns on capital 7, balance-sheet safety 55, capital discipline 24.
Is AOSL stock trading below its intrinsic value?
Against a deliberately conservative owner-earnings model (9% discount rate, 0% assumed growth, capped at 4%), estimated intrinsic value is $4.58 per share versus a recent price of $31.27 — 583% above value. This is an educational estimate computed from primary SEC filings, not investment advice.
How has AOSL's Moat Score changed over time?
The record logs 3 readings since Jul 17, 2026; the latest reads 27.3 out of 100 (no moat). No tier changes on record yet. The history is append-only — readings are only ever added, never rewritten.
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Alpha and Omega Semiconductor Limited (AOSL) Moat Score — The Moat Index · Buy Like Buffett