What is CIEN's five-year median EV/EBITDA?

The median, or middle weekly reading, is 20.4× over the last five years. Available history contains 533 weekly observations from Aug 8, 2016 to Oct 19, 2026.

Does a low historical rank mean a stock is a buy?

No. The rank describes a stock’s own history. Changes in growth, financial risk and the business can change the multiple investors pay. P/E uses earnings and P/S uses revenue from the previous twelve months.

Ciena (CIEN) valuation history

Above its usual range

As of Oct 22, 2026

CIEN's EV/EBITDA of 60.1x is higher than 81% of its available weekly readings from the last five years.

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EV/EBITDA at year-end

Last weekly reading of each completed year. Rank runs from lowest (0%) to highest (100%) within the five years available on that date.

CIEN year-end valuation history
Reading date	EV/EBITDA	5-year rank
Dec 29, 2025	109.9×	100%
Dec 30, 2024	43.2×	99%
Dec 25, 2023	14.7×	33%
Dec 26, 2022	21.9×	98%
Dec 27, 2021	18.0×	86%
Dec 28, 2020	19.8×	93%
Dec 30, 2019	15.7×	75%
Dec 31, 2018	14.4×	83%
Dec 25, 2017	9.9×	20%
Dec 26, 2016	13.0×	Short history

Peers on the same measure

Stock	EV/EBITDA	5-year rank
ANETArista Networks	47.8×	86%
AAPLApple	30.3×	99%
ACNAccenture	11.3×	12%
ADBEAdobe	10.0×	5%

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About this history

What is CIEN's current EV/EBITDA?: CIEN's EV/EBITDA of 60.1x is higher than 81% of its available weekly readings from the last five years.
What is CIEN's five-year median EV/EBITDA?: The median, or middle weekly reading, is 20.4× over the last five years. Available history contains 533 weekly observations from Aug 8, 2016 to Oct 19, 2026.
Does a low historical rank mean a stock is a buy?: No. The rank describes a stock’s own history. Changes in growth, financial risk and the business can change the multiple investors pay. P/E uses earnings and P/S uses revenue from the previous twelve months.