Market Cap

$45.42B

Current · Retrieved: Oct 26, 2026 · USD

CIEN Market Cap

Current$45.42BretrievedOct 26, 2026

CIEN Market Cap ($18.36B → $45.42B · CAGR +3.1%)

Latest values, visible window

High-resolution chart · PNG

CIEN market cap history

Daily history. Dates identify market observations.

Ciena Corporation Common Stock Market Cap — Daily history
Date	Market Cap
Jan 7, 2000	28,663,048,116
Dec 31, 1999	28,538,965,657
Dec 23, 1999	28,787,130,575
Dec 17, 1999	31,516,944,682
Dec 10, 1999	35,673,707,071
Dec 3, 1999	23,606,687,896
Nov 26, 1999	23,792,811,585
Nov 19, 1999	26,491,605,077
Nov 12, 1999	24,227,100,193
Nov 5, 1999	21,714,430,391
Oct 29, 1999	17,495,626,772
Oct 22, 1999	17,061,338,164
Oct 15, 1999	16,409,905,253
Oct 8, 1999	18,255,631,836
Oct 1, 1999	17,557,668,002
Sep 24, 1999	19,031,147,207
Sep 17, 1999	21,156,059,324
Sep 10, 1999	19,729,111,041
Sep 3, 1999	18,271,142,143
Aug 27, 1999	18,053,997,839
Aug 20, 1999	16,006,637,260
Aug 13, 1999	16,875,214,475
Aug 6, 1999	15,665,410,496
Jul 30, 1999	16,751,132,016
Jul 23, 1999	16,751,132,016
Jul 16, 1999	18,426,245,217
Jul 9, 1999	16,906,235,090
Jul 2, 1999	15,386,224,963
Jun 25, 1999	14,920,915,740
Jun 18, 1999	15,324,183,733
Jun 11, 1999	15,076,018,814
Jun 4, 1999	14,610,709,592
May 28, 1999	14,269,482,828
May 21, 1999	14,920,915,740
May 14, 1999	12,035,998,560
May 7, 1999	12,408,245,938
Apr 30, 1999	11,663,751,181
Apr 23, 1999	10,360,885,358
Apr 16, 1999	10,050,679,209
Apr 9, 1999	8,561,689,697
Apr 1, 1999	11,446,606,877
Mar 26, 1999	11,477,627,492
Mar 19, 1999	11,787,833,641
Mar 12, 1999	13,307,843,768
Mar 5, 1999	12,532,328,397
Feb 26, 1999	13,835,194,220
Feb 19, 1999	11,136,400,729
Feb 12, 1999	10,981,297,655
Feb 5, 1999	11,973,957,330
Jan 29, 1999	10,019,658,595
Jan 22, 1999	11,198,441,959
Jan 15, 1999	9,399,246,298
Jan 8, 1999	7,444,947,563
Dec 31, 1998	7,258,823,874
Dec 24, 1998	7,103,720,799
Dec 18, 1998	6,824,535,266
Dec 11, 1998	7,755,153,711
Dec 4, 1998	8,871,895,845
Nov 27, 1998	8,933,937,075
Nov 20, 1998	9,182,101,994
Nov 13, 1998	8,499,648,467
Nov 6, 1998	8,499,648,467
Oct 30, 1998	8,530,669,082
Oct 23, 1998	6,483,308,502
Oct 16, 1998	4,622,071,612
Oct 9, 1998	4,249,824,234
Oct 2, 1998	6,235,143,584
Sep 25, 1998	7,072,700,184
Sep 18, 1998	5,738,813,746
Sep 11, 1998	7,910,256,785
Sep 4, 1998	12,408,245,938
Aug 28, 1998	17,526,647,387
Aug 21, 1998	15,510,307,422
Aug 14, 1998	26,863,852,455
Aug 7, 1998	37,565,964,576
Jul 31, 1998	36,759,428,590
Jul 24, 1998	41,226,397,128
Jul 17, 1998	42,653,345,411
Jul 10, 1998	36,294,119,368
Jul 2, 1998	34,805,129,855
Jun 26, 1998	34,991,253,544
Jun 19, 1998	31,268,779,763
Jun 12, 1998	30,400,202,547
Jun 5, 1998	30,803,470,540
May 29, 1998	25,809,151,550
May 22, 1998	24,444,244,497
May 15, 1998	26,894,873,070
May 8, 1998	26,863,852,455
May 1, 1998	27,236,099,833
Apr 24, 1998	24,071,997,119
Apr 17, 1998	22,645,048,836
Apr 9, 1998	20,721,770,716
Apr 3, 1998	20,225,440,878
Mar 27, 1998	22,551,986,992
Mar 20, 1998	23,327,502,363
Mar 13, 1998	22,272,801,458
Mar 6, 1998	20,923,404,712
Feb 27, 1998	20,814,832,560
Feb 20, 1998	20,845,853,175
Feb 13, 1998	27,763,450,285