What is the current annual book value of CIEN?

As of today, CIEN annual book value is $2.73B

What is 1-year change in CIEN annual book value?

CIEN annual book value is down -3.08% year-over-year

What is 3-year change in CIEN annual book value?

CIEN annual book value is up +0.61% over the past 3 years

How far is CIEN annual book value from its all-time high?

CIEN annual book value is currently -9.63% below its historical high of $3.02B set on October 30, 2021

How does CIEN annual book value rank versus sector peers?

CIEN annual book value is higher than 84.76% of companies in Technology sector

When is CIEN next annual earnings release?

The next annual earnings release for CIEN is on September 9, 2026

What is the current quarterly book value of CIEN?

As of today, CIEN quarterly book value is $2.89B

What is CIEN quarterly book value most recent change?

CIEN quarterly book value was up +3.58% on April 1, 2026

What is 1-year change in CIEN quarterly book value?

CIEN quarterly book value is up +4.17% year-over-year

How far is CIEN quarterly book value from its all-time high?

CIEN quarterly book value is currently -25.82% below its historical high of $3.90B set on July 31, 2001

How does CIEN quarterly book value rank versus sector peers?

CIEN quarterly book value is higher than 85.10% of companies in Technology sector

When is CIEN next earnings release?

The next earnings release for CIEN is on September 9, 2026

CIEN Book Value History & Chart Since 1996

Annual Book Value

$2.73B$86.81M-3.08%

October 1, 2025

Summary

Current Value: As of today, CIEN annual book value is $2.73B, down -3.08% on October 1, 2025
Historical Performance: CIEN annual book value is up +0.61% over the past 3 years, up +8.76% over the past 5 years
All-Time High Comparison: CIEN annual book value is currently -9.63% below its historical high of $3.02B set on October 30, 2021
3-Year Low Comparison: CIEN annual book value is +0.61% above its 3-year low of $2.71B reached on an earlier date
Sector Comparison: CIEN annual book value is higher than 84.76% of companies in Technology sector

Book Value Chart

beforeafter

Performance

CIEN Performance
Metric	Date	Value	1Y	3Y	5Y	15Y
Annual Book Value	Oct 1, 25	$2.73B	-3.1%	+0.6%	+8.8%	+1613.4%
Quarterly Book Value	Apr 1, 26	$2.89B	+4.2%	-0.6%	+7.4%	+5718.8%
Price	Jul 31, 26	$377.05	+306.9%	+806.4%	+562.1%	+2713.8%
	Oct 1, 25	$5.86B	+4.0%	+15.7%	+40.3%	+176.9%
	Oct 1, 25	$3.14B	+11.0%	+33.0%	+87.6%	+60.1%
	Jul 31, 26	18.45	+292.6%	+778.6%	+510.9%	-59.4%
	Oct 1, 25	$2.73B	-3.1%	+0.6%	+8.8%	+1613.4%
Market Cap	Jul 31, 26	$53B	+307.5%	+762.4%	+504.2%	+4011.1%

Book Value Highs

CIEN Annual Book Value Highs Comparison
Period	High	Date	Current
3Y	$2.85B	Oct 31, 23	-4.2%
5Y	$3.02B	Oct 30, 21	-9.6%
All	$3.02B	Oct 30, 21	-9.6%

Book Value Lows

CIEN Annual Book Value Lows Comparison
Period	Low	Date	Current
3Y	$2.71B	N/A	+0.6%
5Y	$2.51B	N/A	+8.8%
All	-$88.97M	Oct 31, 12	+3167.6%

Book Value History

Year	Value	Change
2025	$2.73B	-3.1%
2024	$2.82B	-1.1%
2023	$2.85B	+5.0%
2022	$2.71B	-10.2%
2021	$3.02B	+20.3%
2020	$2.51B	+15.5%
2019	$2.17B	+12.6%
2018	$1.93B	-9.7%
2017	$2.14B	+178.8%
2016	$766.34M	+23.4%
2015	$620.88M	+991.9%
2014	-$69.62M	+15.8%
2013	-$82.68M	+7.1%
2012	-$88.97M	-741.4%
2011	$13.87M	-91.3%

Year	Value	Change
2010	$159.29M	-65.1%
2009	$455.84M	-54.4%
2008	$998.95M	+17.5%
2007	$850.15M	+12.8%
2006	$753.63M	+2.5%
2005	$735.37M	-36.3%
2004	$1.15B	-13.3%
2003	$1.33B	-13.1%
2002	$1.53B	-28.2%
2001	$2.13B	+163.3%
2000	$809.86M	+52.6%
1999	$530.68M	+11.7%
1998	$475.31M	+30.7%
1997	$363.65M	+7,129.6%
1996	$5.03M	-

FAQ

What is the current annual book value of CIEN?: As of today, CIEN annual book value is $2.73B
What is 1-year change in CIEN annual book value?: CIEN annual book value is down -3.08% year-over-year
What is 3-year change in CIEN annual book value?: CIEN annual book value is up +0.61% over the past 3 years
How far is CIEN annual book value from its all-time high?: CIEN annual book value is currently -9.63% below its historical high of $3.02B set on October 30, 2021
How does CIEN annual book value rank versus sector peers?: CIEN annual book value is higher than 84.76% of companies in Technology sector
When is CIEN next annual earnings release?: The next annual earnings release for CIEN is on September 9, 2026

Book Value Formula

Book Value = −

Quarterly Book Value

$2.89B$99.87M+3.58%

April 1, 2026

Summary

Current Value: As of today, CIEN quarterly book value is $2.89B, up +3.58% on April 1, 2026
Historical Performance: CIEN quarterly book value is up +4.17% year-over-year, down -0.56% over the past 3 years
All-Time High Comparison: CIEN quarterly book value is currently -25.82% below its historical high of $3.90B set on July 31, 2001
3-Year Low Comparison: CIEN quarterly book value is +5.97% above its 3-year low of $2.73B reached on October 1, 2025
Sector Comparison: CIEN quarterly book value is higher than 85.10% of companies in Technology sector

Performance

CIEN Performance
Metric	Date	Value	3M	1Y	3Y	5Y
Quarterly Book Value	Apr 1, 26	$2.89B	+3.6%	+4.2%	-0.6%	+7.4%
Annual Book Value	Oct 1, 25	$2.73B	–	-3.1%	+0.6%	+8.8%
Price	Jul 31, 26	$377.05	-30.0%	+306.9%	+806.4%	+562.1%
	Apr 1, 26	$6.04B	+2.5%	+6.7%	+4.6%	+37.6%
	Apr 1, 26	$3.15B	+1.5%	+9.2%	+9.8%	+85.7%
	Jul 31, 26	18.45	-29.9%	+292.6%	+778.6%	+510.9%
	Apr 1, 26	$2.89B	+3.6%	+4.2%	-0.6%	+7.4%
Market Cap	Jul 31, 26	$53B	-29.9%	+307.5%	+762.4%	+504.2%

Quarterly Book Value Highs

CIEN Quarterly Book Value Highs Comparison
Period	High	Date	Current
1Y	$2.89B	Apr 1, 26	at high
3Y	$2.95B	N/A	-1.9%
5Y	$3.02B	Oct 30, 21	-4.2%
All	$3.90B	Jul 31, 01	-25.8%

Quarterly Book Value Lows

CIEN Quarterly Book Value Lows Comparison
Period	Low	Date	Current
1Y	$2.73B	Oct 1, 25	+6.0%
3Y	$2.73B	Oct 1, 25	+6.0%
5Y	$2.67B	Jul 30, 22	+8.4%
All	-$97.94M	Apr 30, 13	+3053.1%

Quarterly Book Value History

Month	Value	Change
Apr 2026	$2.89B	+3.6%
Jan 2026	$2.79B	+2.3%
Oct 2025	$2.73B	-2.1%
Jul 2025	$2.79B	+0.4%
Apr 2025	$2.78B	-0.6%
Jan 2025	$2.79B	-0.8%
Oct 2024	$2.82B	-2.6%
Jul 2024	$2.89B	+0.4%
Apr 2024	$2.88B	-1.5%
Jan 2024	$2.92B	+2.6%
Oct 2023	$2.85B	-3.3%
Jul 2023	$2.95B	+1.3%
Apr 2023	$2.91B	+2.5%
Jan 2023	$2.84B	+4.6%
Oct 2022	$2.71B	+1.7%
Jul 2022	$2.67B	-4.1%
Apr 2022	$2.78B	-1.1%
Jan 2022	$2.81B	-6.8%
Oct 2021	$3.02B	+3.3%
Jul 2021	$2.92B	+8.6%
Apr 2021	$2.69B	+4.1%
Jan 2021	$2.59B	+3.1%
Oct 2020	$2.51B	+3.3%
Jul 2020	$2.43B	+8.4%
Apr 2020	$2.24B	+2.1%
Jan 2020	$2.19B	+1.0%
Oct 2019	$2.17B	+2.5%
Jul 2019	$2.12B	+2.7%
Apr 2019	$2.06B	+0.4%
Jan 2019	$2.05B	+6.5%
Oct 2018	$1.93B	+8.5%
Jul 2018	$1.78B	+2.0%
Apr 2018	$1.74B	-0.7%
Jan 2018	$1.76B	-17.8%
Oct 2017	$2.14B	+126.2%
Jul 2017	$944.31M	+11.5%
Apr 2017	$846.54M	+6.0%
Jan 2017	$798.89M	+4.2%
Oct 2016	$766.34M	+6.2%
Jul 2016	$721.56M	+7.9%
Apr 2016	$669.01M	+6.7%
Jan 2016	$627.03M	+1.0%
Oct 2015	$620.88M	+249.1%
Jul 2015	$177.85M	+28.3%
Apr 2015	$138.66M	+256.5%
Jan 2015	-$88.58M	-27.2%
Oct 2014	-$69.62M	-54.2%
Jul 2014	-$45.15M	+44.1%
Apr 2014	-$80.84M	+6.9%
Jan 2014	-$86.86M	-5.1%
Oct 2013	-$82.68M	+0.6%
Jul 2013	-$83.17M	+15.1%
Apr 2013	-$97.94M	-24.5%
Jan 2013	-$78.63M	+11.6%
Oct 2012	-$88.97M	-47.7%
Jul 2012	-$60.26M	-46.7%
Apr 2012	-$41.07M	-94.6%
Jan 2012	-$21.10M	-252.1%
Oct 2011	$13.87M	-51.4%

Month	Value	Change
Jul 2011	$28.57M	-42.5%
Apr 2011	$49.70M	-47.7%
Jan 2011	$95.13M	-40.3%
Oct 2010	$159.29M	-30.2%
Jul 2010	$228.30M	-30.6%
Apr 2010	$329.13M	-19.7%
Jan 2010	$410.05M	-10.0%
Oct 2009	$455.84M	-3.9%
Jul 2009	$474.12M	-3.3%
Apr 2009	$490.28M	-50.1%
Jan 2009	$982.10M	-1.7%
Oct 2008	$998.95M	-1.9%
Jul 2008	$1.02B	+2.1%
Apr 2008	$997.26M	+12.2%
Jan 2008	$889.06M	+4.6%
Oct 2007	$850.15M	+6.9%
Jul 2007	$795.22M	+0.4%
Apr 2007	$792.13M	+2.9%
Jan 2007	$770.09M	+2.2%
Oct 2006	$753.63M	+3.3%
Jul 2006	$729.87M	+0.7%
Apr 2006	$724.78M	-1.6%
Jan 2006	$736.61M	+0.2%
Oct 2005	$735.37M	-25.2%
Jul 2005	$983.49M	-4.6%
Apr 2005	$1.03B	-6.1%
Jan 2005	$1.10B	-4.9%
Oct 2004	$1.15B	-29.7%
Jul 2004	$1.64B	+37.6%
Apr 2004	$1.19B	-5.5%
Jan 2004	$1.26B	-5.0%
Oct 2003	$1.33B	-6.4%
Jul 2003	$1.42B	+4.4%
Apr 2003	$1.36B	-4.7%
Jan 2003	$1.43B	-6.6%
Oct 2002	$1.53B	-32.8%
Jul 2002	$2.28B	+55.0%
Apr 2002	$1.47B	-29.1%
Jan 2002	$2.07B	-2.9%
Oct 2001	$2.13B	-45.3%
Jul 2001	$3.90B	+0.9%
Apr 2001	$3.86B	+319.1%
Jan 2001	$921.86M	+13.8%
Oct 2000	$809.86M	+19.2%
Jul 2000	$679.53M	+10.3%
Apr 2000	$615.82M	+9.4%
Jan 2000	$562.87M	+6.1%
Oct 1999	$530.68M	+2.9%
Jul 1999	$515.67M	+3.3%
Apr 1999	$499.07M	+3.8%
Jan 1999	$480.76M	+1.1%
Oct 1998	$475.31M	-1.2%
Jul 1998	$481.26M	+5.4%
Apr 1998	$456.66M	+8.3%
Jan 1998	$421.78M	+13.3%
Oct 1997	$372.40M	+25.9%
Jul 1997	$295.90M	+41.9%
Apr 1997	$208.60M	+1,052.5%
Jan 1997	$18.10M	-

FAQ

What is the current quarterly book value of CIEN?: As of today, CIEN quarterly book value is $2.89B
What is CIEN quarterly book value most recent change?: CIEN quarterly book value was up +3.58% on April 1, 2026
What is 1-year change in CIEN quarterly book value?: CIEN quarterly book value is up +4.17% year-over-year
How far is CIEN quarterly book value from its all-time high?: CIEN quarterly book value is currently -25.82% below its historical high of $3.90B set on July 31, 2001
How does CIEN quarterly book value rank versus sector peers?: CIEN quarterly book value is higher than 85.10% of companies in Technology sector
When is CIEN next earnings release?: The next earnings release for CIEN is on September 9, 2026

Book Value Formula

Book Value = −

Data Sources & References

CIEN Official Website www.ciena.com
CIEN Profile on Yahoo Finance finance.yahoo.com/quote/CIEN
CIEN Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/cien