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CIEN
Ciena CorporationStock · Utilities
$403.76−$5.07 (-1.24%)as of market close, Aug 6, 2026
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CIEN monthly returns

Ciena Corporation has averaged 1.91% per month, positive in 54% of months. Month-by-month returns for Ciena Corporation (CIEN) below, through August 6, 2026 — the table lists the most recent months; the bar chart plots the last 5 years.

Average month
+1.9%
344 months
Best month
+143.5%
Feb 2000
Worst month
-62.0%
Aug 1998
Positive months
54%
of all months

Ciena Corporation monthly returns#

Ciena Corporation total return by month
MonthTotal return
Aug 2026
+7.1%
Jul 2026
-23.1%
Jun 2026
-15.5%
May 2026
+10.0%
Apr 2026
+35.9%
Mar 2026
+11.3%
Feb 2026
+38.5%
Jan 2026
+7.7%
Dec 2025
+14.5%
Nov 2025
+7.5%
Oct 2025
+30.4%
Sep 2025
+55.0%

Monthly total return (since Sep 2021)

-40%-20%+0%+20%+40%
20222023202420252026

Methodology#

Monthly returns are total returns (dividends reinvested), computed from CIEN's split- and dividend-adjusted month-end closes. The table shows the most recent 120 months and the bar chart the most recent 60. See the year-by-year returns for the annual view. Past performance does not predict future returns; not investment advice.

See also: S&P 500 · Nasdaq-100 · Dow Jones · Russell 2000 · US Bond Market · Gold · Silver · Bitcoin · Ethereum

FAQ

What is Ciena Corporation's average monthly return?
Ciena Corporation (CIEN) has averaged about 1.91% per month, positive in roughly 54% of months. The best month was Feb 2000 (+143.5%) and the worst was Aug 1998 (-62.0%).