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Applied Optoelectronics

AAOI
26
Communication Equipment · Technology
Also trades as: 0HGV.L
Price
$132.00
-3.63 (-2.68%)
Market Cap
$10.59B
Exchange
NASDAQ
Winston Score
26
Winston is worried
Below-average fundamentals — multiple weak pillars.
Data as of Aug 10, 2026 · filings through Jun 30, 2026

Share count rising — dilution

+123.6% over 4y

The company has issued more shares over this period, which dilutes each existing shareholder’s stake.

Diluted shares outstanding: 26.9M (2021) → 60.2M (2025)

Applied Optoelectronics, Inc. (AAOI) makes fiber-optic networking components — the hardware that helps data travel at high speeds through cables made of light. Its main products include lasers, transceivers, and other optical devices used inside data centers, cable TV networks, and internet infrastructure. The company sells primarily to large cloud computing companies and cable operators in the United States and Asia.

AAOI earns revenue by selling physical hardware, so its income depends on customer orders that can swing sharply from quarter to quarter. Most of its manufacturing is done at its own facilities in Texas and Taiwan, giving it some control over production costs. The company has struggled with profitability, as shown by its negative operating and return-on-invested-capital figures. The key growth driver is rising demand for high-speed optical components tied to AI data center buildouts, but customer concentration risk — where a few large buyers make up most of its sales — remains a significant vulnerability.

Winston Score History

Growth Profile

When traditional metrics don't capture the full picture, these are the signals growth stock investors use instead.

Revenue Growth

+86.4% YoY

YoY Growth Rate

Revenue accelerating

EPS Growth

-75.0% YoY

YoY Growth Rate

Earnings declining

R&D Spend

$86M/ year

Rising (+56% vs prior year)

18.8% of revenue

In line with sector average (15%)

Investing heavily in future products and technology

Insider Activity

5.4%ownership

Flat

Insider ownership roughly steady over the past year

Cash Runway

~4 months

$500M cash & investments

Quarterly Free Cash Flow

↓ Burn rate worsening

Short runway — potential dilution ahead through share issuance

Revenue accelerating

Applied Optoelectronics grew revenue 86% year-over-year and the growth rate is speeding up. That's the kind of momentum growth investors look for — the question is whether margins can follow.

The Winston Score above measures business quality today. Growth stocks often score lower because they invest in the future rather than maximising current profits. These metrics show what matters most for evaluating that future.

Score breakdown

Every number that matters to educated investors.

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Quality

Gross Margin
27.7%
Modest — 27.7% gross margin
Operating Margin
-12.9%
Losing money on operations — -12.9%
ROCE
-1.3%
Weak — -1.3% return on capital

Negative ROIC means the business is losing money on every dollar invested in it.

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Growth

Sales YoY
+61.8%
Fast-growing sales (+61.8% YoY)
EPS YoY
N/A
Data not available
EPS Consistency
4/8 quarters
Earnings inconsistent quarter-to-quarter

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Cash Flow

Cash Conversion
N/A
Data not available
FCF Margin
-128.4%
Burning cash (-128.4%)

Free cash flow is negative. They are burning cash, not generating it.

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Stability

Debt / Equity
0.11
Conservative — low debt load (0.11)
Interest Cover
N/A
Data not available

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Valuation

P/E Ratio (TTM)
N/M
Negative earnings — P/E not meaningful
P/E vs Forward
N/A
not available
Data not available

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Dividends

Not applicable for this business.
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