What is the current PE ratio of CIEN?

As of today, CIEN PE ratio is 125.50

What is CIEN PE ratio 1-year high?

CIEN PE ratio reached a 1-year high of 305.20 on January 7, 2026

CIEN PE ratio reached a 1-year low of 89.48 on August 20, 2025

CIEN PE ratio is up +30.89% year-over-year

CIEN PE ratio is up +339.73% over the past 3 years

CIEN PE ratio is currently -96.73% below its historical high of 3,843.75 set on January 24, 2000

CIEN PE ratio is higher than 88.54% of companies in Technology sector

125.501.66+1.34%

July 31, 2026

Current Value: As of today, CIEN PE ratio is 125.50, up +1.34% on July 31, 2026
All-time High: CIEN PE ratio is currently -96.73% below its historical high of 3,843.75 set on January 24, 2000
1-Year High: CIEN PE ratio reached a 1-year high of 305.20 on January 7, 2026
1-Year Low: CIEN PE ratio reached a 1-year low of 89.48 on August 20, 2025
1-Year Change: CIEN PE ratio is up +30.89% over the past 365 days
Sector rank: CIEN PE ratio is higher than 88.54% of companies in Technology sector

CIEN Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
PE Ratio	Jul 31, 26	125.50	+1.3%	-23.1%	-28.5%	-54.4%	+30.9%	+339.7%	+536.1%
Price	Jul 31, 26	$377.05	+1.3%	-23.1%	-28.5%	+61.2%	+306.1%	+793.5%	+548.5%
TTM Revenue	Apr 1, 26	$5.57B	+8.7%	–	+8.7%	–	+30.6%	+38.3%	+64.0%
TTM EPS	Apr 1, 26	$3.00	+90.8%	–	+90.8%	–	+318.4%	+122.5%	+28.6%
	Jul 31, 26	18.45	+1.3%	-23.2%	-28.5%	+52.7%	+291.7%	+766.2%	+499.0%
	Jul 31, 26	9.58	+1.3%	-23.2%	-28.5%	+38.6%	+231.5%	+547.3%	+261.5%
	Jul 31, 26	$53.75B	+1.3%	-23.0%	-28.3%	+61.4%	+301.6%	+710.3%	+538.3%
	Jul 31, 26	68.41	+1.3%	-23.0%	-28.3%	-7.3%	+99.8%	+434.4%	+403.4%
Market Cap	Jul 31, 26	$53B	+1.3%	-23.1%	-28.4%	+61.8%	+306.7%	+750.1%	+491.9%

CIEN PE Ratio Highs Comparison
Period	High	Date	Current
1M	163.28	Jun 30, 26	-23.1%
3M	208.69	Jun 2, 26	-39.9%
6M	277.92	Mar 25, 26	-54.8%
1Y	305.20	Jan 7, 26	-58.9%
3Y	305.20	Jan 7, 26	-58.9%
5Y	305.20	Jan 7, 26	-58.9%
All	3,843.75	Jan 24, 00	-96.7%

CIEN PE Ratio Lows Comparison
Period	Low	Date	Current
1M	109.96	Jul 29, 26	+14.1%
3M	109.96	Jul 29, 26	+14.1%
6M	109.96	Jul 29, 26	+14.1%
1Y	89.48	Aug 20, 25	+40.3%
3Y	24.70	Oct 31, 23	+408.1%
5Y	15.41	Jun 16, 22	+714.4%
All	2.44	Nov 9, 17	+5043.4%

What is the current PE ratio of CIEN?: As of today, CIEN PE ratio is 125.50
What is CIEN PE ratio 1-year high?: CIEN PE ratio reached a 1-year high of 305.20 on January 7, 2026
What is CIEN PE ratio 1-year low?: CIEN PE ratio reached a 1-year low of 89.48 on August 20, 2025
What is 1-year change in CIEN PE ratio?: CIEN PE ratio is up +30.89% year-over-year
What is 3-year change in CIEN PE ratio?: CIEN PE ratio is up +339.73% over the past 3 years
How far is CIEN PE ratio from its all-time high?: CIEN PE ratio is currently -96.73% below its historical high of 3,843.75 set on January 24, 2000
How does CIEN PE ratio rank versus sector peers?: CIEN PE ratio is higher than 88.54% of companies in Technology sector

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