ADTRAN Holdings (ADTN) stock

Broadband networking , market cap $337M

Broadband networking

Worth $337M

$4.41

+2.80%

As of Tuesday's close · Live for Pro members at the open

Why ADTN fell 37% since Oct 28

Down 37% from Oct 28 to Nov 10.

It reported quarterly revenue of $281.2M and a diluted loss of $0.10 a share on Nov 3.

Sources: Price history, Nov 10, 2026; SEC filing, Nov 3, 2026

−3Long-term trend below a falling 200-day average, down over one year, down over two years

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1 more reason, free with an account →2 more reasons why ADTN fell 37% since Oct 28, from its filings, with the other side, the timeline, and its peers, for Pro members.

Quality Score

Below Average

In its industry

#3of 3

Optical & Broadband

Checks firing

1of 14

Trending down

From 52-week high

-77.9%

under its best in a year

ADTN's Quality Score fell 3 points on Tue, Nov 10, to 2. Trading went back to normal after a busy day (3 chart checks stopped).

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Key facts on ADTN

Key facts on ADTN
Since its 2022 high	Down 83% a $2M loss → a $25.1M loss a year
Latest filing	10-Q, Nov 5 Filed its quarterly report (10-Q) for the quarter to Sep 30, 2026

1 more reason behind ADTN's 2, free with an account →1 more reason behind ADTN's 2, for Pro members.

ADTN in the news

InsiderDisclosed yesterday: Stanton Thomas R, CEO, bought $601K on Nov 6. Form 4

Tested. Our top-scored stocks returned 2.2x the average stock over the next month. Reconstructed after the fact; recorded live since Sep 9, 2026. How we tested it

ADTN catalysts

Coming up

After its last 4 reports it closed -11.1% on average, higher 0 of 4 times.

4 past catalysts since 2022, with sizes and sources, for Pro members.

How ADTN ranks in Optical & Broadband

ADTN is #3 of 3 by Quality Score.

How ADTN ranks in Optical & Broadband
Rank	Stock	Checks	Quality Score
1	CIENCiena	2/14	8
2	FNFabrinet	0/14	3
3	ADTNADTRAN	1/14	2

More in Optical & Broadband, on the Technology page

When does ADTN report earnings, and what happens after?

Expected to report Wed Feb 24, after the close (in 106 days).

What an earnings report is: every 3 months, a company tells everyone how much it sold and earned. We read the figures, the outlook, and how the stock moved after.

What ADTN reported on Nov 3, 2026

The quarter

Sales of $281.2M, 1% more than a year ago; a loss of $0.10 a share, from $0.12.

The quarter that ended Sep 30, from the company's press release

The press release The filing on EDGAR

Where the sales came from

Where the quarter's sales came from
Line	Q3 2026	Q2 2026	Q3 2025
By product
Optical networking solutionsup 11%	$115M41%	$110M39%	$103M37%

Each quarter's sales and their share of its total. Figures as filed (SEC filing, Nov 5)

8 more lines, for Pro members.

The outlook

The outlook the company gave, by period
Measure	Figure
Q4 2026
Revenue	$272M to $292M

Figures as filed (SEC filing, Nov 3)

1 more outlook line, for Pro members.

In the company's words

“Cost savings and pricing adjustments are underway; a much smaller tariff refund benefit is expected in Q4.”

From its results filing (SEC filing · Nov 3)

The numbers

Market value: $337M; today
Sales: $1.1B; up 10.1% on the year
Free cash flow: $22.5M; last 12 months

Sales grew 16% a year over 5 years, fiscal 2020 to 2025.

Its share count grew 11% a year over 5 years.

5 more figures, for Pro members.

No analyst estimates on Breakaway: every figure here is filed.

The whole report on ADTN: every line of its sales, every outlook beside the one it replaced, and the company's words, for Pro members.

Close after the report, last 3

-16.6%-1.1%-19.4%

May 5Aug 4Nov 3

Reported	When	Gap	Reaction	5 days
Nov 3, 2026Before open	Before open	-1.6%	-19.4%	-31.7%
Aug 4, 2026Before open	Before open	+1.4%	-1.1%	-13.9%
May 5, 2026Before open	Before open	-13.5%	-16.6%	-14.5%

ADTN closed higher after 0 of its last 4 reports.

All 4 reports, and ADTN's Quality Score going into each

ADTN sales and profit by year

Sales and profit by year

Sales grew in five of the last seven years, to $1.1B in 2025. It made a profit in one of the eight years.

ADTN has 1 of 14 chart checks firing

Trend1 of 5 shown

MA FAN 21 EMA W.EMA HH/HL 52W HI

Volume1 of 3 shown

VOL VDU U/D VOL

Tight range1 of 3 shown

ATR SQZ SQUEEZE NR7

Buying1 of 3 shown

OBV+CLOSE HI SPRING

The other 10 checks on ADTN, and all 14 on every stock.Get in free →

ADTN RSI today: 26.7, below its 50-day and 200-day averages

Not scored

RSI 26.7, MACD below signal, below both averages. Not scored.13 readings

The deep dive on ADTN

What it does and how it makes money5 findingsAn operating loss of $15.6M in fiscal 2025, on $1.08B of sales.Annual report, filed Feb 26, 2026"Our patents expire at various dates between 2026 and 2044." (10-K for fiscal 2025)SEC filing · Feb 26, 2026
Where it stands3 findingsFor Pro members3 findings on where ADTN stands: its cash, debt, and share count, for Pro members
What changed in its filings9 findings"In addition to such Legal Matters, the Company is a party to appraisal proceedings relating to the DPLTA which were originally filed with the Landgericht Meiningen (Meiningen District Court) on February 3, 2023." (10-Q for the quarter to Sep 30, 2026)SEC filing · Nov 5, 2026A new heading in its "Risk Factors" this year: "Emerging issues related to the development and use of AI could give rise to legal or regulatory action, damage our reputation, or otherwise materially harm our business." (10-K for fiscal 2025; not in fiscal 2024's)SEC filing · Feb 26, 2026, against the one of Mar 3, 2025One customer made up 14% of its revenue in fiscal 2025, up from 12% in fiscal 2024.SEC filing · Feb 26, 2026
Who holds and trades it2 findingsFor Pro members2 findings on who holds and trades ADTN, for Pro members

14 more findings on ADTN, each with its source, for Pro members.

ADTN insider trades

2 insiders bought $725K across 3 filings, and one insider sold $137K across 1 filing, in the last 6 months. The newest:

BuyThomas R. Stanton$601KChairman & CEOat $4.01 on Nov 6, filed yesterday

BuyThomas R. StantonChairman & CEO$601Kat $4.01 on Nov 6, filed yesterday

All 4 insider filings on ADTN from the last six months, for Pro members.

All ADTN insider trades

ADTN's officers and directors

Officers and directors with a Form 4 in the last 12 months.

Thomas R. StantonChairman & CEO · 2 trades
Timothy P. SantoSVP of Finance; CFO · 3 trades
Christoph GlingenerChief Technology Officer · 2 trades
James Denson Wilson Jr.Chief Revenue Officer · 1 trade
Hourigan Rice JacquelineDirector · 1 trade
Nikos TheodosopoulosDirector · 1 trade
Anne DelSantoDirector · no trades on file
Balan NairDirector · no trades on file

4 more officers and directors file at ADTN.

See insider trades by person

Which ETFs hold ADTN?

In ETFs: ADTN is under 0.1% of FTEC, under 0.1% of VGT, and under 0.1% of VTI, the most of the 24 funds Breakaway covers, by each fund's latest filing, Jun 30 to Aug 31, 2026.

About ADTRAN Holdings

Adtran Holdings Inc is a provider of networking and communications platforms, software, and services focused on the broadband access market. It operates under two reportable segments: Network Solutions segment, which includes hardware and software products that enable a digital future that supports the company's Subscriber, Access & Aggregation, and Optical Networking Solutions; and Services & Support segment, which includes network design, implementation, maintenance and cloud-hosted services supporting the company's Subscriber, Access & Aggregation, and Optical Networking Solutions. It generates the majority of its revenue from the Network Solutions segment.

3,338 employeesHuntsville, ALadtran.com

What ADTRAN Holdings says it competes with

“We compete in markets for networking and communications services and solutions for Service Providers, businesses, government agencies and other organizations worldwide.”

From its annual report, SEC filing · Feb 26, 2026

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What would turn ADTN's score around: 6 things
3 more filings explained, a plain line each
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BreakawayyesterdayThomas R. Stanton bought ADTN$601K at $4.01, filed Nov 9

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See ADTN's 14 chart checks

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Straight AnswersStraight Answers

As of Nov 10, 2026: ADTN's Quality Score is 2 (Below Average), #3 of 3 in Optical & Broadband. Insiders bought $725K and sold $137K in the last 6 months (Form 4).

What does ADTN's Quality Score say?

ADTN scores 2 today, which Breakaway calls Below Average. It is #3 of 3 in Telephone & Telegraph Apparatus by Quality Score, with 1 of 14 chart checks firing. Down 37% from Oct 28 to Nov 10. Breakaway does not say whether to buy any stock: the score does not know your situation, and it is not a recommendation to buy or sell anything. Please do your own research.

What is ADTN's Quality Score?

ADTN scores 2 today, which Breakaway calls Below Average (0 to 5). That is #3 of 3 in Telephone & Telegraph Apparatus by Quality Score. The score adds up the chart checks, the trend, the company's filed sales, its profits, the news, insider trades, and Congress trades. The section above lists the lines behind ADTN's 2.

Are insiders buying ADTN?

2 insiders bought $725K across 3 filings, and one insider sold $137K across 1 filing, in the last 6 months. The newest is Thomas R. Stanton, Chairman & CEO, who bought $601K on Nov 6. Every filing, with the scored weight, for Pro members.

Are the prices delayed?

Only on the public pages, which run at least 15 minutes behind. Pro members, and anyone on a guest pass, see real-time prices: the scanner refreshes every 15 seconds, and your watchlist every few seconds, pre-market and after hours included.