Risk Sleuth
CIEN · 10-K filed 12 Dec 2025 · year to 1 Nov 2025

Ciena

34 named things its latest annual report says its results depend on, each in the company's own words. 21 of them are also named by other companies we've read.

Read the filing on SEC.gov ↗

Customers

Unnamed cloud provider customer

earns from · approximately 18% of our revenuenamed as a risk
For example, in fiscal 2025, our five largest customers contributed approximately 50% of our revenue, a cloud provider customer accounted for approximately 18% of our revenue, and a service provider accounted for approximately 11% of our revenue.Risk factors (Item 1A)

Unnamed service provider customer

earns from · approximately 11% of our revenuenamed as a risk
For example, in fiscal 2025, our five largest customers contributed approximately 50% of our revenue, a cloud provider customer accounted for approximately 18% of our revenue, and a service provider accounted for approximately 11% of our revenue.Risk factors (Item 1A)

Suppliers

Third-party contract manufacturers

depends onnamed as a risk
We rely on third-party manufacturers, including those with facilities in Canada, Mexico, Thailand, Vietnam and the United States, to perform many of our critical supply chain activities.Risk factors (Item 1A)

Also named by KVUE, NBIX, ON, SYM, WDFC

Other companies

Purchase commitments and inventory

$826.2 million in inventory and $2.1 billion in purchase commitmentsnamed as a risk
As of November 1, 2025, we had $826.2 million in inventory and $2.1 billion in purchase commitments, many of which are non-cancellable, across our supply chain.Risk factors (Item 1A)

Nubis Communications, Inc.

We also offer specialized electrical and optical interconnect pluggables and other components, including new technology solutions from our acquisition of Nubis Communications, Inc. (“Nubis”) during the fourth quarter of fiscal 2025.Business (Item 1)

Competitors

Hewlett Packard Enterprise

competes withnamed as a risk
Our competitors include Nokia, Huawei, Cisco, Hewlett Packard Enterprise, and ZTE.Business (Item 1)

Also named by ANET, CLS, HPQ, IBM, P, SMCI

Huawei

competes withnamed as a risk
Our competitors include Nokia, Huawei, Cisco, Hewlett Packard Enterprise, and ZTE.Business (Item 1)

Also named by COHR, NVDA, P, PDFS, QCOM

Cisco

competes withnamed as a risk
Our competitors include Nokia, Huawei, Cisco, Hewlett Packard Enterprise, and ZTE.Business (Item 1)

Also named by ANET, CDW, FFIV, SMCI

Nokia

competes withnamed as a risk
Our competitors include Nokia, Huawei, Cisco, Hewlett Packard Enterprise, and ZTE.Business (Item 1)

ZTE

competes withnamed as a risk
Our competitors include Nokia, Huawei, Cisco, Hewlett Packard Enterprise, and ZTE.Business (Item 1)

Broadcom

competes with
In addition, as we advance our interconnects and market expansion strategy to address needs inside and around the data center, we will begin to compete with additional competitors, including Marvell Technology Group, Credo Technology Group, and Broadcom.Business (Item 1)

Also named by ALAB, ANET, FFIV, FTNT, HPE, SWKS

ServiceNow

competes with
Competitors for our Blue Planet Automation Software include Cisco, Nokia, Amdocs, ServiceNow, Netcracker, and Ericsson.Business (Item 1)

Also named by DOCU, RMNI

Credo Technology Group

competes with
In addition, as we advance our interconnects and market expansion strategy to address needs inside and around the data center, we will begin to compete with additional competitors, including Marvell Technology Group, Credo Technology Group, and Broadcom.Business (Item 1)

Also named by ALAB

Marvell Technology Group

competes with
In addition, as we advance our interconnects and market expansion strategy to address needs inside and around the data center, we will begin to compete with additional competitors, including Marvell Technology Group, Credo Technology Group, and Broadcom.Business (Item 1)

Amdocs

competes with
Competitors for our Blue Planet Automation Software include Cisco, Nokia, Amdocs, ServiceNow, Netcracker, and Ericsson.Business (Item 1)

Ericsson

competes with
Competitors for our Blue Planet Automation Software include Cisco, Nokia, Amdocs, ServiceNow, Netcracker, and Ericsson.Business (Item 1)

Places

United States

concentrated in · approximately 72% of our revenue in fiscal 2025named as a risk
Our revenue is concentrated, with approximately 72% of our revenue in fiscal 2025 coming from the United States.Risk factors (Item 1A)

Also named by ABBV, ADP, AJG, AMGN, APA, AXGN, AXP, BALL and 139 more

Mexico

operates innamed as a risk
from Canada and Mexico, as products making up a significant portion of our revenue are manufactured in or distributed from Mexico, and we generally introduce new products and conduct related early volume manufacturing in Canada;Risk factors (Item 1A)

Also named by AAP, AME, AMRC, ANET, AOS, ARES, AYI, AZO and 83 more

Canada

operates innamed as a risk
from Canada and Mexico, as products making up a significant portion of our revenue are manufactured in or distributed from Mexico, and we generally introduce new products and conduct related early volume manufacturing in Canada;Risk factors (Item 1A)

Also named by AAP, AJG, ALL, AMRC, AOS, ARE, BBY, BF/B and 97 more

China

depends onnamed as a risk
from China, as our supply chain includes certain China-based suppliers; andRisk factors (Item 1A)

Also named by A, AA, AAOI, AAP, AAPL, AB, ADI, AEHR and 261 more

Vietnam

operates innamed as a risk
from a wide range of countries globally, including Thailand and Vietnam, where we also rely on third-party manufacturing operations for a significant portion of our revenue.Risk factors (Item 1A)

Also named by AAPL, AMKR, ANET, ASO, BBW, CGNX, CROX, CSW and 16 more

Thailand

operates innamed as a risk
from a wide range of countries globally, including Thailand and Vietnam, where we also rely on third-party manufacturing operations for a significant portion of our revenue.Risk factors (Item 1A)

Also named by ADI, CB, INGR, LITE, LZB, MCHP, NXT, TER and 3 more

Commodities and inputs

SOFR

exposed to its price · approximately $4.5 millionnamed as a risk
As a result, a 100 basis point (1.0%) increase in the Secured Overnight Financing Rate (“SOFR”) rate as of the balance sheet date would increase our annualized interest expense by approximately $4.5 million.Market risk (Item 7A)

Also named by AAP, AIOT, APG, APH, ARES, AXON, BGC, BR and 82 more

Canadian Dollar

exposed to its price · 46.3% of our operating expense was non-U.S. Dollar denominatednamed as a risk
With regard to operating expenses, our primary exposure to foreign currency exchange rates relates to the Canadian Dollar, Indian Rupee and Euro.Market risk (Item 7A)

Also named by ABBV, ADBE, AMG, AYI, BBY, BWXT, CBRE, CDRE and 67 more

Euro

exposed to its price · 9.9% of revenue was non-U.S. Dollar denominatednamed as a risk
Some of our transactions are non-U.S. Dollar denominated, with the Euro, Indian Rupee, and Canadian Dollar being our most significant foreign currency revenue exposures.Market risk (Item 7A)

Also named by ABBV, ABNB, ABT, ADBE, ADI, AME, AMG, AMGN and 186 more

Semiconductors

depends onnamed as a risk
For example, the electro-optical component and semiconductor industries have been experiencing increased demand as a result of significant spending related to AI and other cloud-based applications, which has led to a constrained supply environment.Risk factors (Item 1A)

Also named by AAPL, AIOT, ARW, AXON, CARR, CAT, CSCO, GD and 16 more

Indian Rupee

exposed to its pricenamed as a risk
With regard to operating expenses, our primary exposure to foreign currency exchange rates relates to the Canadian Dollar, Indian Rupee and Euro.Market risk (Item 7A)

Also named by ACN, ADBE, AJG, AVY, BEN, CTSH, EEFT, FDS and 11 more

Optical and electronic components

depends onnamed as a risk
Our products include optical and electronic components for which reliable, high-volume supply is often available only from sole or limited sources.Risk factors (Item 1A)

Laws and programs

EU Artificial Intelligence Act

subject tonamed as a risk
Moreover, AI technology is subject to rapidly evolving domestic and international laws and regulations, including executive orders by the U.S. government and the EU’s Artificial Intelligence Act, which could impose significant costs and obligations on the Company.Risk factors (Item 1A)

Also named by ABNB, ADP, AIOT, AKAM, ALAB, AMG, APP, AVAV and 24 more

U.S.-China trade tensions

subject tonamed as a risk
Increasing tensions between the United States and China—including tariffs, export controls, investment restrictions, and evolving data security or technology transfer requirements—could disrupt our supply chain.Risk factors (Item 1A)

Also named by DD, MMM, ON, OTIS

U.S. tariffs on steel, aluminum and copper

subject tonamed as a risk
of steel, aluminum, and copper, including derivative goods that include certain of our products;Risk factors (Item 1A)

Also named by CSW, SRE, WHR

U.S. semiconductor import investigation

subject tonamed as a risk
However, the U.S. government is currently investigating imports of products, including semiconductors and derivative products relevant to our business, which could result in material additional tariffs.Risk factors (Item 1A)

EU WEEE and RoHS regulations

subject to
Our business and operations are currently subject to environmental laws in various jurisdictions around the world, including the Waste Electrical and Electronic Equipment (“WEEE”) and Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment (“RoHS”) regulations adopted by the EU.Business (Item 1)

Technology

WaveLogic coherent modem technology

At the heart of our business is our industry-leading portfolio of optical transport and switching systems, powered by our proprietary WaveLogic™ coherent modem technology and supported by our advanced photonic line systems.Business (Item 1)