Ciena PE ratio CIEN

Share price divided by earnings per share over the last twelve months, since 2015.

Today, Oct 23, 2026: 71.5×
10-year median: 32.3×
Against its 10-year history: 76th; percentile: 0 is its lowest day, 100 its highest
10-year range: 10.2× to 410×
Peer median: 33.6×

Ciena's PE ratio is 71.5× as of Oct 23, 2026: a share price of $320.26 against $4.48 of earnings per share over the last twelve months.

That is above its ten-year median of 32.3×, higher than on 76% of days in the last ten years.

Over that time it ranged from 10.2× in Nov 2018 to 410× in Feb 2026.

The median for 7 communication equipment stocks of a similar size is 33.6×.

PE ratio over time

Open the interactive chart, with overlays and comparisons

Year by year

Year	End of year	Low	High
2026 so far	71.5×	71.5×	410×
2025	284×	99.1×	284×
2024	152×	27.2×	153×
2023	26.3×	25.8×	51.4×
2022	51.0×	15.6×	51.0×
2021	24.1×	17.6×	26.4×
2020	22.8×	16.3×	30.9×
2019	26.7×	22.7×	41.5×
2018	10.3×	10.2×	10.3×
2017	24.5×	22.9×	58.0×
2016	54.2×	54.2×	231×
2015	230×	230×	230×

Against its peers

Companies in Communication Equipment nearest Ciena's size, closest first, today.

Company	PE ratio
CIENCiena	71.5×
UIUbiquiti	37.1×
LITELumentum	n/m
MSIMotorola Solutions	38.0×
ZBRAZebra Technologies	35.4×
FNFabrinet	24.1×
ESEEsco Technologies	19.2×
CSCOCisco Systems	31.9×
Peer median	33.6×

Where Ciena ranks

#12of 14Communication equipment stocks with the lowest PE ratio

What the PE ratio tells you

Share price divided by earnings per share over the last twelve months. It is the price tag on a dollar of profit: 20× means you pay $20 for $1 of yearly earnings.

Blank while earnings are negative. A very low PE can mean the market expects profits to fall, so read it with growth and the company's own history.

More on Ciena

Valuation data, not investment advice. Prices as of Oct 23, 2026. Reported figures come from the company's filings with the SEC.