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Buy Day today: Good (62) Broad market participation · no major macro event
AAOI

Applied Optoelectronics, Inc.

Technology · Communication Equipment · listed since 2013

98.10$ +1.4% vs. previous close Closing price · As of: Sep 17, 2026
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Price history

Chart

Interactive price chart (TradingView).

52-week range: 19.50 $ to 223.10 $ · Last price: 98.10 $ (As of: September 17, 2026)

Key figures

Key figures at a glance

Every figure we hold for this stock, grouped by topic. The question mark next to a label explains what the number means.

Basics

Market Cap ?The value of the entire company on the market: share price times total shares outstanding. 7.9$B
Shares Outstanding ?Total number of shares issued. Price times share count gives market cap. 85m
Float ?Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders. 94.9%
Beta ?Volatility versus the overall market: 1 = moves like the market, 2 = twice as much, under 1 = calmer than the market. 3.8

Performance

Perf. 1M ?Price performance over the last month. -11.20%
Perf. 3M ?Price performance over the last 3 months. 52.80%
Perf. 6M ?Price performance over the last 6 months. 266.10%
YTD Performance (%) ?Price performance since the start of the year (Year to Date). 322.90%
52-Week-High Distance ?How far the price sits below its highest point over the last 52 weeks. 0% means the stock is at its year high. -40.7%
Perf. 1Y ?Price performance over the last 12 months. 232.75%
Perf. 3Y ?Price performance over the last 3 years. 896.54%
Perf. 5Y ?Price performance over the last 5 years. 1,214.48%
Perf. 10Y ?Price performance over the last 10 years. 351.89%
Perf. Since Inception ?Price performance since the first available trading day (09/26/2013) — with a complete history, that is since the IPO. 884.54%

Technical Indicators

MA 38 Days ?Moving average of the last 38 trading days: the smoothed price path. A price above it signals short-term strength. 113.50$
MA 50 Days ?Moving average of the last 50 trading days — the most widely watched medium-term trend line. 113.00$
MA 200 Days ?Moving average of the last 200 trading days — the dividing line between a long-term uptrend and downtrend. 104.70$
RSI (14) ?Relative Strength Index over 14 days, scale 0 to 100: above 70 counts as overbought, below 30 as oversold. A hint on timing, not a verdict on the company. 41.5
Volatility 30 Days ?Price swings over the last 30 trading days, annualized. The higher the value, the more the price fluctuates. 101.8%
Volatility 250 Days ?Price swings over the last 250 trading days (roughly one market year), annualized. 139.8%

Calculated from the price history · as of 09/18/2026

Valuation

P/E ?Price-to-earnings ratio: how many years of profit does the stock cost? The lower, the cheaper the valuation. No earnings means no P/E. –
Forward P/E ?P/E based on expected earnings for the next 12 months instead of past earnings — analysts' bet on the future. 84.0
PEG ?P/E divided by expected earnings growth: puts valuation in relation to growth. Around 1 is considered fair, well above that is pricey. 0.8
P/B ?Price-to-book ratio: market value relative to book equity. 7.2
P/S ?Price-to-sales ratio: market value divided by annual sales. Important for companies that aren't (yet) profitable. 13.2
EV/EBITDA ?Enterprise value including debt (EV) relative to operating profit before depreciation and amortization (EBITDA) — more comparable than P/E because debt counts too. Extreme values arise when EBITDA is near zero. 38.4
Price/FCF ?Market value divided by free cash flow: how many years of freely available cash does the stock cost? More honest than P/E because cash flow is harder to dress up. –

Profitability

Gross Margin ?Gross margin: what's left of sales after only direct production costs are deducted — the product's pricing power. 28.9%
EBIT Margin ?EBIT margin: operating profit as a percentage of sales — the earning power of the core business before interest and taxes. -8.6%
Net Margin ?Net margin: what's left of sales as profit after ALL costs, interest, and taxes. -9.6%
Return on Equity ?Return on equity: how much profit does the company generate per year on shareholders' equity? -6.1%
Return on Assets ?Return on assets: how much profit the company generates from its total assets (equity and debt combined). -2.7%

Balance Sheet & Safety

Equity Ratio ?Equity ratio: equity as a share of total assets. The higher, the more resilient the balance sheet. 70.6%
Debt/Equity ?Leverage ratio: financial debt divided by equity. Under 1 is generally seen as solid; negative values mean negative equity. 0.2
Altman Z″ ?Edward Altman's bankruptcy early-warning score. We use the Z″ variant, built from four balance-sheet ratios — it is designed for service companies and non-manufacturers and uses book value instead of market value. On that scale: below 1.1 = danger zone, 2.6 and up = safe zone, in between a grey area. Because the classic Altman Z is calculated differently, the two numbers are not directly comparable. The formula does not fit banks, insurers, or real-estate stocks. fortress balance sheet 7.59
Piotroski ?Balance-sheet health check by Joseph Piotroski: 9 yes/no criteria on profit, cash flow, leverage, and efficiency. 7+ is very solid, under 3 is a red flag. 4 out of 9

Growth

Sales Growth Last Quarter ?Sales growth in the most recently reported quarter versus the same quarter a year ago (YoY). 51.40%
EPS Growth Last Quarter ?Growth in earnings per share in the most recently reported quarter versus the same quarter a year ago (YoY). 0.00%
Sales Growth (Year) ?Sales growth in the last fiscal year versus the year before. 82.75%
Forward Sales Growth ?Sales growth analysts expect over the next 12 months — an estimate, not a guarantee. 149.95%
Forward EPS Growth ?Earnings-per-share growth analysts expect over the next 12 months — an estimate, not a guarantee. 437.20%

Dividend

This stock currently pays no dividend.

Quality & Screener

Stage ?Weinstein phases 1 through 4: 1 = basing, 2 = uptrend (the only buy phase), 3 = topping, 4 = downtrend. Measured against the 30-week line. 2
RS Rating ?Relative strength from 1 to 99: an RS of 95 means the stock has outperformed 95% of all stocks. Top 10% 98
EPS Rating ?Earnings growth rating from 1 to 99 versus all stocks — high values mean above-average earnings growth. 42
Fundamental Rating ?Our own Fundamental Rating: 0 to 100 points with an A+ to F grade. 50 points is the average across the universe, 100 the best possible score. It scores growth, earnings surprises, analyst estimates, margins, cash flow, and balance-sheet safety — every stock percentile-ranked against all others. Grades: A+ from 95, A from 75, B from 55, C from 45, D from 25, E from 5, F below. C (53 out of 100)

Highlighted are things our editorial team noticed: green = stands out as strong, red = deserves a closer look. No single metric is a verdict on its own — always read it in context.

Comparison

Industry comparison

The stock alongside the largest companies in the same group. The median row is the middle value of the companies shown above — not of the whole industry.

Industry: Communication Equipment

Industry comparison
Company Market cap ($B) P/E EV/EBITDA Gross Margin % EBIT Margin % Sales Growth (Year) % Perf. 1Y %
Applied Optoelectronics, Inc. AAOI 7.9 – 38.4 28.9 -8.6 82.8 232.8
Cisco Systems Inc CSCO 436.0 35.3 22.8 64.5 25.0 5.3 66.2
Hewlett Packard Enterprise Co HPE 78.0 57.4 14.2 36.6 8.7 14.1 152.6
Motorola Solutions Inc MSI 76.3 37.7 22.9 52.1 19.8 8.0 -2.7
Lumentum Holdings Inc LITE 71.0 154.2 114.9 44.2 21.8 21.0 447.1
Ciena Corp CIEN 48.8 113.9 47.4 44.1 15.2 18.8 152.4
Ubiquiti Networks Inc UI 36.1 – 27.8 46.2 36.9 33.5 -1.3
Telefonaktiebolaget LM Ericsson B ERIC 33.6 13.2 7.0 47.6 0.0 -14.2 30.2
Ast Spacemobile Inc ASTS 24.4 – -2.3 38.9 -1,014.0 1,505.2 52.3
Median of companies shown 48.8 47.5 22.9 44.2 15.2 18.8 66.2

Based on the most recently reported figures. Only stocks from the same trading venue are lined up, so the market caps are counted in one currency. Compare in a chart →

Fiscal years

Annual Figures

Fiscal years from the audited annual reports, oldest first. EBIT is the operating profit before interest and taxes; total assets are everything the company owns.

Revenue, operating income and net income per fiscal year $M

Revenue Operating income Net income

2016 · Revenue: 261 $M 2016 · Operating income: 23 $M 2016 · Net income: 31 $M 2017 · Revenue: 382 $M 2017 · Operating income: 87 $M 2017 · Net income: 74 $M 2018 · Revenue: 267 $M 2018 · Operating income: -11 $M 2018 · Net income: -2 $M 2019 · Revenue: 191 $M 2019 · Operating income: -49 $M 2019 · Net income: -66 $M 2020 · Revenue: 235 $M 2020 · Operating income: -49 $M 2020 · Net income: -58 $M 2021 · Revenue: 212 $M 2021 · Operating income: -57 $M 2021 · Net income: -54 $M 2022 · Revenue: 223 $M 2022 · Operating income: -59 $M 2022 · Net income: -66 $M 2023 · Revenue: 218 $M 2023 · Operating income: -41 $M 2023 · Net income: -56 $M 2024 · Revenue: 249 $M 2024 · Operating income: -71 $M 2024 · Net income: -187 $M 2025 · Revenue: 456 $M 2025 · Operating income: -55 $M 2025 · Net income: -38 $M
2016201720182019202020212022202320242025
Annual Figures
Fiscal Year Revenue ($M) EBIT ($M) Net Income ($M) EPS ($) Operating Cash Flow ($M) Equity ($M) Total Assets ($M)
2016 261 23 31 1.76 57 227 322
2017 382 87 74 3.67 84 333 453
2018 267 -11 -2 -0.11 14 329 467
2019 191 -49 -66 -3.31 -2 274 467
2020 235 -49 -58 -2.67 -44 278 481
2021 212 -57 -54 -2.01 -12 255 454
2022 223 -59 -66 -2.38 -14 185 408
2023 218 -41 -56 -1.75 -8 215 389
2024 249 -71 -187 -4.50 -70 229 547
2025 456 -55 -38 -0.64 -174 734 1,168

Quarters

Quarterly Figures

Each bar is one quarter, the last one is the most recent. Use the switch to step through the individual figures.

Revenue & Profit

Cash Flow

Balance Sheet

Margins

Per Share

Click the chart or tab into it, then use ← and → to step through the periods.

None of the selected stocks reports this metric. Pick another metric or switch between annual and quarterly.

These companies report in different currencies — switch on “Indexed” or pick a margin for a fair comparison.

The figures could not be loaded right now.

Sales Per Quarter ($M)
2024: Q4 · 100.3 $M Q4 2025: Q1 · 99.9 $M Q1 2025: Q2 · 103.0 $M Q2 2025: Q3 · 118.6 $M Q3 2025: Q4 · 134.3 $M Q4 2026: Q1 · 151.1 $M Q1 2026: Q2 · 191.9 $M Q2

Source: fundamental data

Quarterly Figures
Quarter EPS (Earnings Per Share) EPS YoY (%) Sales ($M) Sales YoY (%) Net Margin (%) OCF ($M) FCF ($M)
2024: Q4 -2.60 – 100 65.90 -119.40 -25 -53
2025: Q1 -0.18 – 100 145.50 -9.20 -51 -79
2025: Q2 -0.16 – 103 137.90 -8.80 -66 -91
2025: Q3 -0.28 – 119 82.10 -15.10 -29 -79
2025: Q4 -0.03 – 134 33.90 -1.50 -30 75
2026: Q1 -0.19 – 151 51.40 -9.40 -85 -144
2026: Q2 -0.28 -75.00 192 86.30 -11.90 12 12

What Do These Terms Mean?

EPS (Earnings Per Share):
Quarterly profit divided by the total share count — how much of the profit works out to a single share.
YoY (Year over Year):
Change versus the same quarter a year ago — this is how you compare without seasonal distortion (e.g. the holiday shopping season).
Sales:
All revenue for the quarter, before any costs are deducted — the top line of the income statement.
Net Margin:
What percentage of sales is left over as profit in the end. Negative means the company is posting a loss.
OCF (Operating Cash Flow):
The cash that actually flows into the till from the core business during the quarter — harder to dress up than book profit.
FCF (Free Cash Flow):
Operating cash flow minus capital expenditures — the money that's genuinely free to use, say for paying down debt, buybacks, or dividends.

Compare with other stocks →

Screening

Appears in These Scanners

This stock currently matches 25 of our scanner strategies — each hit links to the scanner.

Growth

Quality & Balance Sheet

Aktien.Guide

Breakout & Setup

Momentum & Trend

Research

Risk & Weakness

Only genuine hits from verified scanners count; pure ranking metrics (P/E, P/S, and similar, which just sort the whole universe) don't count as a hit. Scanners marked in red are red-flag signals (risk/short scanners) — appearing there is not a seal of approval. View all scanners

Outlook

Analysts & Price Target

Combined picture of the price targets and recommendations of every analyst covering the stock. Price targets are expectations for the next 12 months, not promises — and they often follow the price rather than predict it.

Consensus Sell 1 = Strong buy … 5 = Strong sell
Analyst Ratings 5
Price Target (average) 163.40$
Distance to price 66.6% The price target sits 66.6% above the current price.

Distribution of Recommendations

Strong Buy 2
Buy 2
Hold 1
Sell 0
Strong Sell 0

Estimates by Fiscal Year

Estimates by Fiscal Year
Fiscal Year EPS Estimate ($) EPS Range ($) Revenue Estimate ($M) Expected Growth Analysts
12/31/2026 0.68 0.47 – 0.85 1,038 361.5% 6
12/31/2027 4.60 3.52 – 8.08 2,663 576.8% 5

Average of the analyst estimates for the coming fiscal years. The range shows how far the most optimistic and the most cautious estimate sit apart — the wider it is, the less certain the expectation.

Valuation

What is priced in?

Free cash flow over the past twelve months is negative, which rules out a serious reverse calculation. Any growth rate only makes a negative cash flow more negative; no present value comes out of it. What the price reflects here is therefore not a stream of cash flows, but the expectation that there will be one at all.

A simplified model calculation — not a forecast and not a recommendation.

AI classification

AI Rating

Sells AI

Das Kerngeschäft — optische 400G/800G-Transceiver für Hyperscale-Rechenzentren — wird laut 10-K/10-Q ausdrücklich für den KI-Ausbau der Cloud-Betreiber verkauft; die Berichte führen das Umsatzwachstum im Rechenzentrumsgeschäft direkt auf generative KI zurück und benennen KI-Nachfrage zugleich als konkretes Planungsrisiko. KI-getriebene Infrastruktur-Nachfrage ist damit eine dokumentierte Umsatzquelle.

View the full file — quotes, sources, reviewed filings
„In addition, we believe that the significant automation employed in our production process for data center optical modules gives us advantages over our competitors in the ability to scale production rapidly, which is beneficial because the rapid adoption of artificial intelligence ("AI") is fueling a new wave of investment by hyperscale data center operators, as AI computing is very compute and bandwidth intensive."

Zudem verschafft uns der hohe Automatisierungsgrad unserer Fertigung optischer Rechenzentrums-Module aus unserer Sicht Vorteile gegenüber Wettbewerbern beim schnellen Hochskalieren der Produktion — was von Vorteil ist, weil die rasche Verbreitung der Künstlichen Intelligenz („KI“) eine neue Investitionswelle der Hyperscale-Rechenzentrumsbetreiber befeuert, denn KI-Computing ist äußerst rechen- und bandbreitenintensiv.

10-K · 2026-02-26 · View SEC filing

„The leading-edge AI applications require significantly more compute capacity and bandwidth, driving the need for faster (800Gbps and higher) and innovative optical networking solutions to support the intra-data center connectivity needs."

Die führenden KI-Anwendungen erfordern deutlich mehr Rechenkapazität und Bandbreite und treiben damit den Bedarf an schnelleren (800 Gbit/s und mehr) und innovativen optischen Netzwerklösungen für die Konnektivität innerhalb der Rechenzentren.

10-K · 2026-02-26 · View SEC filing

„While the new customer interaction is not material within the quarter, we believe that both this new customer interaction and much of the growth in our existing data center business is related to efforts by these customers to increase processing capacity within their data centers, largely to accommodate applications enabled by generative artificial intelligence ("AI")."

Auch wenn die neue Kundenbeziehung im Quartal noch nicht wesentlich ist, gehen wir davon aus, dass sowohl diese neue Kundenbeziehung als auch ein Großteil des Wachstums in unserem bestehenden Rechenzentrumsgeschäft auf die Bemühungen dieser Kunden zurückgeht, die Rechenkapazität in ihren Rechenzentren zu erhöhen — vor allem für Anwendungen, die durch generative Künstliche Intelligenz („KI“) ermöglicht werden.

10-Q · 2025-11-06 · View SEC filing

„If AI adoption slows, stalls, or follows a trajectory that differs from our planning assumptions, we could incur overcapacity, lower utilization rates, and negative operating leverage."

Wenn sich die KI-Einführung verlangsamt, ins Stocken gerät oder anders verläuft als in unseren Planungsannahmen, könnten uns Überkapazitäten, geringere Auslastung und negative operative Hebel treffen.

10-K · 2026-02-26 · View SEC filing

Filings Reviewed: 10-Q 2026-05-07 · 10-Q 2025-11-06 · 10-Q 2025-08-07 · 10-Q 2025-05-08 · 10-K 2026-02-26 · 10-K 2025-02-28

Rated on July 8, 2026 · How the Rating Is Built

Growth

Growth Score

Ten checks against the annual reports — each one passed counts a point.

5 of 10 Solid growth
  • Revenue grows by more than 15% a year over three years 26.9%
  • More than 10% revenue growth is expected for the coming year 150.0%
  • Share count grows by less than 3% a year 29.3%
  • Revenue growth plus cash-flow margin add up to at least 40 ("Rule of 40") 5.2%
  • Gross margin at 40% or higher and without meaningful erosion 30.0%
  • Goodwill from acquisitions does not grow faster than revenue 0.0%
  • Net debt below twice EBITDA 49 m net cash
  • Operating cash flow covers the profits of the last three years 29 m
  • Return on capital at 15% or higher, or up versus two years ago -6.0%
  • Insiders hold at least 10% or are net buyers 10.8%

A criterion without figures counts neither as passed nor as failed; a score is only produced from 7 judgeable criteria upwards. Source: fundamental data. All ten criteria in detail

Quality check

AAQS

5/10

The AAQS (AlleAktien Quality Score) checks 10 quality criteria on growth, profitability, and balance-sheet strength — per the methodology developed and published by AlleAktien, calculated by us from our own fundamental data. A stock counts as a quality stock from 9 out of 10 points. Where a company has a shorter listing history, we calculate over the fiscal years available (at least five).

  • Sales growth 10Y > 5% 6.4%
  • Exp. sales growth 3Y > 5% 141.7%
  • EBIT growth 10Y > 5% –
  • Exp. EBIT growth 3Y > 5% 141.7%
  • Net debt < 4x EBIT –
  • EBIT positive, 10Y straight 2
  • Max. EBIT decline < 50% 100.0%
  • Return on equity > 15% -5.2%
  • ROCE > 15% -6.0%
  • Expected return > 10% 130.9%

View stocks with the full AAQS score · Read the methodology at AlleAktien

Source: fundamental data

Insiders

Insider Transactions

Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character.

Insider Transactions
Date Person Role Type Shares Price Value
Sep 10, 2026 Murry Stefan J. Chief Financial Officer Sell 4,000 105.33 421,320
Sep 8, 2026 Chang Hung-Lun (Fred) *** See Remarks Sell 32,172 110.21 3,545,676
Aug 18, 2026 Yeh Shu-Hua (Joshua) *** See Remarks Sell 6,000 147.73 886,380
Aug 10, 2026 Murry Stefan J. Chief Financial Officer Sell 4,000 144.79 579,160
Aug 4, 2026 Yeh Shu-Hua (Joshua) *** See Remarks Sell 4,715 126.50 596,448
Jul 31, 2026 Lin Chih-Hsiang (Thompson) President and CEO Other 9,251 0.00 –
Jul 22, 2026 Kuo David C *** See Remarks Other 407 119.26 48,539
Jul 22, 2026 Kuo David C *** See Remarks Other 516 119.26 61,538
Jul 22, 2026 Kuo David C *** See Remarks Other 472 119.26 56,291
Jul 22, 2026 Kuo David C *** See Remarks Other 1,869 119.26 222,897

View all insider transactions →

The company

About the Company

Applied Optoelectronics, Inc. ist in der Entwicklung, Fertigung und im Verkauf von Glasfaser-Netzwerkprodukten in den USA, Taiwan und China tätig.

Employees
4,691
Headquarters
Sugar Land, TX
Address
13139 Jess Pirtle Boulevard, 77478 Sugar Land, United States
Phone
281 295 1800
Website
ao-inc.com
IPO Date
09/26/2013
ISIN
US03823U1025

Management

Management
Name Title Birth Year
Chih-Hsiang Lin Ph.D. Founder, Chairman, President & CEO 1963
Stefan J. Murry Ph.D. CFO & Chief Strategy Officer 1973
David C. Kuo J.D. Senior VP, Chief Legal & Compliance Officer and Secretary 1983
Hung-Lun Chang Ph.D. Senior VP of Optical Component Business Unit & North America GM 1964
Shu-Hua Yeh Senior VP of Network Equipment Module Business Unit & Asia GM 1966
Lindsay Grant Savarese Investor Relations –
Jessica Hung VP of Finance & Controller –

Executives per the latest required filings; titles kept in their original language. Source: fundamental data.

Filings

Company Filings (8-K)

An 8-K is the filing a US company must use to disclose material events immediately — takeovers, changes at the top, major contracts or payment troubles, for instance. The links open the original document at the US Securities and Exchange Commission (SEC).

  • 09/15/2026 APPLIED OPTOELECTRONICS, INC. (AAOI): Entry into a Material Definitive Agreement; Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant; Financial Statements and Exhibits SEC ↗
  • 09/10/2026 APPLIED OPTOELECTRONICS, INC. (AAOI): Entry into a Material Definitive Agreement; Financial Statements and Exhibits SEC ↗
  • 09/01/2026 APPLIED OPTOELECTRONICS, INC. (AAOI): Entry into a Material Definitive Agreement; Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant; Financial Statements and Exhibits SEC ↗
  • 08/24/2026 APPLIED OPTOELECTRONICS, INC. (AAOI): Entry into a Material Definitive Agreement; Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers; Financial Statements and Exhibits SEC ↗
  • 08/21/2026 APPLIED OPTOELECTRONICS, INC. (AAOI): Entry into a Material Definitive Agreement; Financial Statements and Exhibits SEC ↗
  • 08/06/2026 APPLIED OPTOELECTRONICS, INC. (AAOI): Results of Operations and Financial Condition; Financial Statements and Exhibits SEC ↗

Data as of: September 17, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)

Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.

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