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Ciena (CIEN, Communications Equipment) Stock Valuation & Fair Value Significantly overvalued

Ciena (CIEN, Communications Equipment) trades at a blended P/E of 65.4, about 139% above its historical normal valuation, with a forward growth estimate of 56.5% and a PEG of 1.16. Analysts' one-year estimates have been hit 45% of the time. Priced at its historical normal P/E of 27.4 on the same blended earnings, the 2026-10-09 close of $449.77 corresponds to about $188 a share. This is a valuation reference, not a price target.

Blended P/E
65.4
Normal P/E
27.4
PEG
1.16
Fwd growth
56.5%
Div yield
0.0%
RSI (14)
66.8
Neutral
Technical context
  • Price $449.77 at the 2026-10-09 close, 20.4% above the 20-day average ($373.51) and 18.2% above the 50-day ($380.65).
  • RSI (14) at 66.8.
  • 52-week range $155.94 to $627.00: the price is 28.3% below the high and 188.4% above the low.

The Street vs SeerForecast

Wall Street's mean price target for CIEN is $512.99 across 20 analysts, 14.1% above the current price. The average analyst rating is Buy. Our SeerForecast read of the same stock, formed without analyst targets: significantly overvalued. When the two disagree, start your digging there.

Valuation flags

Verdict history

tickerseer's rating has been significantly overvalued since 2026-08-28.

Blended P/E and rating by weekBlended P/E moved from 68.3 to 65.4 between 2026-08-28 and 2026-10-09, against a normal P/E of 27.4, with 0 rating changes over 15 recorded weeks.2026-08-28: P/E 68.3, Significantly overvalued, recalculated for the week of 2026-08-282026-08-28: P/E 68.3, Significantly overvalued, recalculated for the week of 2026-08-302026-08-28: P/E 64.5, Significantly overvalued, recorded live 2026-08-312026-09-04: P/E 64.5, Significantly overvalued, recalculated for the week of 2026-09-052026-09-04: P/E 49.7, Significantly overvalued, recorded live 2026-09-072026-09-11: P/E 49.7, Significantly overvalued, recalculated for the week of 2026-09-122026-09-11: P/E 53.4, Significantly overvalued, recorded live 2026-09-142026-09-18: P/E 53.4, Significantly overvalued, recalculated for the week of 2026-09-192026-09-18: P/E 68.3, Significantly overvalued, recorded live 2026-09-212026-09-25: P/E 68.3, Significantly overvalued, recalculated for the week of 2026-09-262026-09-25: P/E 53.2, Significantly overvalued, recorded live 2026-09-282026-10-02: P/E 57.6, Significantly overvalued, recalculated for the week of 2026-10-032026-10-02: P/E 57.6, Significantly overvalued, recorded live 2026-10-052026-10-09: P/E 65.4, Significantly overvalued, recalculated for the week of 2026-10-102026-10-09: P/E 65.4, Significantly overvalued, recorded live 2026-10-1240.060.0Aug 28Sep 7Sep 18Sep 29Oct 9Normal P/E 27.4
Significantly overvalued

Not every point was recorded live. Points marked recalculated are worked out from the metrics tickerseer archived that week.

Selected weeks: the first, the latest, and the cheapest and dearest.

WeekBlended P/EPremium to normal P/ERating
2026-08-28P/E 68.3+149%Significantly overvalued (recalculated)
2026-09-07P/E 49.7+81%Significantly overvalued
2026-10-12P/E 65.4+139%Significantly overvalued ← now
Show all 15 weeks
WeekBlended P/EPremium to normal P/ERating
2026-08-28P/E 68.3+149%Significantly overvalued (recalculated)
2026-08-30P/E 68.3+149%Significantly overvalued (recalculated)
2026-08-31P/E 64.5+136%Significantly overvalued
2026-09-05P/E 64.5+136%Significantly overvalued (recalculated)
2026-09-07P/E 49.7+81%Significantly overvalued
2026-09-12P/E 49.7+81%Significantly overvalued (recalculated)
2026-09-14P/E 53.4+95%Significantly overvalued
2026-09-19P/E 53.4+95%Significantly overvalued (recalculated)
2026-09-21P/E 68.3+149%Significantly overvalued
2026-09-26P/E 68.3+149%Significantly overvalued (recalculated)
2026-09-28P/E 53.2+94%Significantly overvalued
2026-10-03P/E 57.6+110%Significantly overvalued (recalculated)
2026-10-05P/E 57.6+110%Significantly overvalued
2026-10-10P/E 65.4+139%Significantly overvalued (recalculated)
2026-10-12P/E 65.4+139%Significantly overvalued ← now

Frequently asked questions

Is Ciena stock overvalued?

At a blended P/E of 65.4 versus its historical normal P/E of 27.4, Ciena trades about 139% above its typical valuation, with a PEG of 1.16 on 56.5% forward growth. tickerseer currently rates it significantly overvalued.

What is Ciena's fair value and PEG?

Ciena trades at a blended P/E of 65.4 against a historical normal P/E of 27.4, a PEG of 1.16, and a forward growth estimate of 56.5%. Priced at its historical normal P/E of 27.4 on the same blended earnings, the 2026-10-09 close of $449.77 corresponds to about $188 a share. This is a valuation reference, not a price target.

Has tickerseer's rating of Ciena changed?

tickerseer's rating has been significantly overvalued since 2026-08-28.

What is the analyst price target for Ciena?

The mean Wall Street price target for Ciena is $512.99 across 20 analysts, 14.1% above the current price. tickerseer's SeerForecast verdict is formed independently of analyst targets.

Industry: Communications Equipment. Create a free account to see the full analysis: the SeerAI score, its five quality sub-scores, valuation history, and the AI research note. Options setups and metric history are part of the paid plans.

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