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NASDAQ · AAOITechnologySemiconductors

Applied Optoelectronics, Inc. (AAOI)

$59.27−7.35%
Close Nov 4, 2026 · split-adjusted
Nov 3, 2026$63.89▲ 93.37% in range
Nov 3, 2025Low $19.49 · High $223.10Nov 3, 2026
What changed · written from our data
As of Nov 4, 2026

Applied Optoelectronics closed at $59.27 on Nov 4, down 7.35%, 73.4% below its 52-week closing high. Volume of 16.1M shares was 1.28× its 20-day average (above normal).

Split-adjusted performance: -54.5% over one month, -66.8% over six months, +79.4% over one year.

In the quarter ended Jun 30, 2026, revenue was $191.92M, up 86.4% from a year earlier, with a net margin of -11.9%.

Short interest was 16.3M shares at the Oct 15 settlement, up 17.5% from the prior report (20.0% of float, 1.3 days to cover).

Market cap$5.03B84.9M shares
Revenue · quarter$191.9M+86.4% YoY
Diluted EPS$-0.28—
P/E · TTM—P/S 8.4×
Net margin-11.9%Gross 27.7%
Dividend yieldNone
52-week range19.49 – 223.10−73.4% from high
Volume16.1M1.28× 20-day avg
Volatility · 60d104.9%Annualised
Short % of float20.0%1.3 days to cover
Net cash$311.7MCash $499.7M
Next earnings—Not scheduled
Split-adjusted performance
1W −27.9%1M −54.5%3M −52.3%6M −66.8%YTD +70.0%1Y +79.4%3Y +737.1%5Y +670.7%

Earnings reactions

History →

No reported quarters with price history yet.

Rank within Semiconductors

Percentile among 83 companies (100 = best)

6-month momentum7
Revenue growth86
Net margin24
Value (low P/E)—
Size59

Industry medians: 6-month return −31.2%, revenue growth +24.6%, net margin 8.1%, P/E 46.8×.

Short interest

Details →
Shares short16.3M+17.5% vs prior
Days to cover1.3Settled Oct 15
% of float20.0%
Short vol. 10d50.7%of daily volume

Closest peers by size in Semiconductors

CompanyPriceToday6MRev. growthNet marginP/EMkt cap
AAOIApplied Optoelectronics$59.27−7.35%−66.8%+86.4%−11.9%—$5.03B
MXLMaxLinear$56.85−11.13%−30.0%+72.4%13.3%—$5.16BCompare
SYNASynaptics$117.49+0.07%+9.5%+8.9%−145.3%—$4.66BCompare
MRCYMercury Systems$71.76−10.66%−21.7%+6.1%0.3%—$4.37BCompare
CRUSCirrus Logic$115.99+3.27%−30.8%+12.9%16.7%13.5$5.81BCompare
ALGMAllegro MicroSystems$31.25−7.16%−39.2%+29.2%8.4%188.4$5.83BCompare
ENPHEnphase Energy$31.55+3.71%−11.9%−28.5%8.0%46.0$4.17BCompare
OLEDUniversal Display$89.57+0.19%−4.7%+14.9%49.2%17.5$4.03BCompare
VSHVishay Intertechnology$25.84−5.07%−23.0%+16.6%3.2%139.6$3.96BCompare

News about Applied Optoelectronics

All news →
Should You Buy, Sell, or Hold AAOI Stock Ahead of Q3 Earnings?Zacks Investment Research · 1d agoNeutralAAOI's CATV Business Gains Momentum: Can It Beat LITE and COHR?Zacks Investment Research · Oct 28, 2026▲ PositiveAAOI vs. CBRS: Which AI Infrastructure Stock Has an Edge Now?Zacks Investment Research · Oct 23, 2026▲ PositiveWhy Applied Optoelectronics Stock Plummeted This WeekThe Motley Fool · Oct 16, 2026▼ NegativeThe Zacks Analyst Blog Highlights Innodata, Calix, Applied Optoelectronics and Palantir TechnologiesZacks Investment Research · Oct 13, 2026▲ Positive

Quick answers

What does Applied Optoelectronics do?
Applied Optoelectronics Inc is a provider of fiber-optic networking products, for four networking end-markets; internet data center, CATV, telecom, and FTTH. The Company designs and manufactures a wide range of optical communications products at varying levels of integration, from components, subassemblies, and modules to meet turn-key equipment.
What is AAOI's market cap?
$5.03B, based on the Nov 4 close of $59.27.
Does Applied Optoelectronics pay a dividend?
No regular cash dividend has been paid in the last year.
How much of AAOI is sold short?
16.3M shares, 20.0% of float, as of Oct 15, 2026.
What sector is AAOI in?
Technology, in the Semiconductors industry.

About Applied Optoelectronics

Applied Optoelectronics Inc is a provider of fiber-optic networking products, for four networking end-markets; internet data center, CATV, telecom, and FTTH. The Company designs and manufactures a wide range of optical communications products at varying levels of integration, from components, subassemblies, and modules to meet turn-key equipment. Through direct sales personnel, and manufacturing teams in the United States, China, and Taiwan, the company coordinates with customers to determine product design, qualifications, and performance. The Company has manufacturing and research and development facilities located in the U.S., Taiwan, and China.

HQ: Sugar Land, TX4,691 employeesListed Sep 26, 2013ao-inc.com

Sources: Massive / Polygon daily aggregates (split-adjusted) · SEC filings via Massive · FINRA settlements via Massive · Financial Modeling Prep. Figures are dated where shown; research is informational, not investment advice. Methodology