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NYSE · CIEN

Ciena Corporation

Technology · Communication Equipment

$320.72

Down-$28.73 (-8.22%)

Updated Nov 1, 2026, 8:21 PM

SID Score

5.6/10

Composite research score

Smart Money

58/100

Neutral

Market cap
34.24B
P/E ratio
277.98
Dividend yield
0.00%
52-week range
$168.22 – $637.51
Volume
3.1M
Avg. volume
3.16M

Price performance · CIEN

CIEN price history

1M range · 20 trading sessions · Daily adjusted prices

Prices through Oct 30, 2026

CIEN closed at $320.72 after 20 trading sessions, down 17.70% for the selected period.

Last close
$320.72
Period change
-17.70%
Period low
$320.26
Period high
$449.77
Daily close
View OHLC price history
CIEN OHLC price history, latest 40 sessions
DateOpenHighLowCloseVolume
Oct 30, 2026$326.00$332.72$313.265$320.723.1M
Oct 29, 2026$348.60$361.96$340.0101$349.452.81M
Oct 28, 2026$357.01$368.24$351.60$363.212.79M
Oct 27, 2026$344.09$353.095$336.3009$351.152.69M
Oct 26, 2026$324.06$345.48$318.77$335.932.84M
Oct 23, 2026$325.95$327.40$313.4479$320.261.97M
Oct 22, 2026$343.48$346.29$320.695$322.643.94M
Oct 21, 2026$354.56$363.97$349.87$361.343.01M
Oct 20, 2026$336.70$350.3468$328.88$341.951.95M
Oct 19, 2026$348.31$354.45$338.79$344.203.06M
Oct 16, 2026$350.95$354.60$330.985$332.733.2M
Oct 15, 2026$342.50$357.8286$333.15$356.523.49M
Oct 14, 2026$393.88$393.88$356.78$359.603.32M
Oct 13, 2026$393.33$401.87$381.64$400.402.74M
Oct 12, 2026$443.53$445.9476$400.20$405.013.33M
Oct 9, 2026$436.00$454.7282$424.02$449.773.78M
Oct 8, 2026$436.15$443.99$421.11$425.933.7M
Oct 7, 2026$428.975$448.00$422.304$446.453.37M
Oct 6, 2026$393.58$446.37$392.00$443.656.4M
Oct 5, 2026$393.77$397.47$382.50$389.692.47M

Latest CIEN news

The latest Smart Investors Daily articles mentioning CIEN.

Stock researchCompany · Overview

CIEN research

Overview

Company profile and research snapshot.

Company profile

Ciena is a telecommunications equipment provider focused on optical transport technologies, with clients in a number of industries such as communication services providers, web-scale providers, cable operators, government, and large enterprises worldwide. The company provides equipment, software, and services that support transport, switching, aggregation, service delivery, and data traffic management.

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Analyst outlook

Consensus and target data currently published for this company.

Consensus
—
Average target
$197.50
Implied upside
—
Analysts
—
CIEN recent ratings
DateFirmRatingTarget
Sep 30, 2026BernsteinOutperform—
Sep 21, 2026Evercore ISI GroupOutperform—
Sep 17, 2026RosenblattBuy—
Sep 17, 2026NeedhamBuy—
Sep 17, 2026Morgan StanleyEqual-Weight—
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News briefing

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Yahoo · Oct 31, 2026

Is Ciena (CIEN) Undervalued Following Strong Q3 Results And Raised Guidance?

Ciena (CIEN) is back in focus after reporting Q3 revenue growth of 37% year over year, raising its full year outlook, and launching a US$200 million Ciena Ventures program targeting AI networking. Despite the upbeat Q3 story, Ciena’s recent share price has cooled, with the stock down 8.2% on a 1-day basis and 8.8% over 30 days. By contrast, the year-to-date share price return of 30.3% and a very large 3-year total shareholder return of about 7x point to longer term momentum that shorter term...

Yahoo · Oct 31, 2026

Ciena (CIEN) Stock May Be 43% Undervalued Following AI Networking Optimism

Ciena has delivered huge gains in recent years, and the question now is whether the current share price lines up with the cash the business is expected to generate. After such a strong run, the key issue for anyone looking at the stock is how those cash flows stack up against what the market is already pricing in. Over the past 3 years, Ciena has produced a very large share price return that puts a lot of future cash generation assumptions under the microscope. Evercore ISI’s recent upgrade,...

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