Cienavs.Coherent
CIEN vs COHR · both in Data centers, part of the AI & digital infrastructure value chain: Servers, networking, optics and data center capacity that tie AI infrastructure together.
Ciena and Coherent are similar in size by market cap; year to date, Ciena leads (+97.0% vs +75.8%).
Side by side
| CIEN | COHR | |
|---|---|---|
| Market cap | $65.2B | $63.5B |
| Price | $460.72 | $324.50 |
| Today | −0.4% | −0.8% |
| Return YTD | +97.0% | +75.8% |
| Return 1Y | +487.3% | +246.2% |
| P/E | 148.8 | 135.4 |
| P/S | 11.7 | 9.6 |
| P/B | 22.5 | 5.9 |
Data as of 2026-07-11 · updates daily after U.S. close
The two companies
CienaCIEN
Leading in long-distance optical transmission — connecting data centers with each other (data center interconnect).
Full CIEN profile →CoherentCOHR
Produces optical transceivers and lasers — the components that transmit data as light between AI servers and data centers.
Full COHR profile →More comparisons in Data centers
See where CIEN and COHR sit in the full AI & digital infrastructure map — every segment from suppliers to end markets.Open the AI value chain →