CIEN

Ciena Corporation $363.21 as of 2026-10-28
Model view — historical tendencies for the days ahead, not a forecast
Next 1 day
-0.4%
Next 1 week
+2.1%
Next 1 month
+7.1%
Seasonality
Bullish window historically
Next 30 days (to Nov 28): +7.1% median, 71% of the last 28 years finished up.
20-year seasonality chart →
Mean reversion
Overbought — RSI(2) at 89
RSI(2) under 15 is oversold (this name has historically bounced); over 85 is overbought. Its dip-buy edge in history is +0.03%/day.
Mean-reversion stats →
1-month breakdown — Market · β 2.75 +7.2% · Seasonal tilt -0.1%
$52.4B market cap (#897 US) $1.2B/day volume 77% volatility +99% 1-year -66% from ATH
52-week range · 42% of the way up · -43% from the high
$168.22$637.51

Congressional trades in CIEN Full tracker →

9 members · 10 buys / 9 sells · $19K–$285K disclosed · latest filing Jul 21, 2026.

BUY AA Alan Armstrong · traded Mar 30, 2026 $1K–$15K
BUY AA Alan Armstrong · traded Mar 27, 2026 $1K–$15K
BUY GC Gilbert Cisneros · traded May 29, 2026 $1K–$15K
BUY GC Gilbert Cisneros · traded May 14, 2026 $1K–$15K
SELL LM Lisa McClain · traded Oct 31, 2025 $1K–$15K
SELL LM Lisa McClain · traded Oct 30, 2025 $1K–$15K
BUY LM Lisa McClain · traded Oct 30, 2025 $1K–$15K
SELL LM Lisa McClain · traded Oct 15, 2025 $1K–$15K
BUY LM Lisa McClain · traded Jun 17, 2025 $1K–$15K
SELL JJ John James · traded Sep 4, 2024 $1K–$15K
BUY JJ John James · traded Nov 10, 2023 $1K–$15K
SELL DG Daniel Goldman · traded Jul 12, 2023 $1K–$15K
SELL LF Lois Frankel · traded Nov 20, 2020 $1K–$15K
BUY LF Lois Frankel · traded Jul 24, 2020 $1K–$15K
SELL EB Earl Blumenauer sT · traded Mar 13, 2019 $1K–$15K
BUY EB Earl Blumenauer · traded Feb 28, 2018 $1K–$15K
SELL TM Thomas MacArthur · traded May 27, 2015 $1K–$15K
SELL PR Pat Roberts · traded Oct 22, 2013 $1K–$15K
BUY PR Pat Roberts · traded Sep 17, 2013 $1K–$15K

Earnings Full history →

Next report 2026-12-10 (Thursday, before open, in 42 days) · EPS est. 2.08.

1-day std dev
12.0%
Finished up
55%
Biggest pop
+26.8%
Biggest drop
-24.3%

Standard deviation of the close-to-close move over the last 60 reports. History, not a forecast.

ReportedEst.Actual SurpriseGap Day 1Day 5
2026-09-03 beat 1.73 2.11 +22.1% +0.1% -10.4% -1.3%
2026-06-04 beat 1.46 1.64 +12.3% -11.0% -13.7% -28.2%
2026-03-05 beat 1.17 1.35 +15.6% -9.2% -12.9% -2.0%
2025-12-11 beat 0.77 0.91 +18.2% +6.5% +9.2% -5.0%
2025-09-04 beat 0.53 0.67 +27.6% +21.3% +23.3% +39.7%
2025-06-05 miss 0.52 0.42 -18.9% -8.4% -12.9% -11.6%
2025-03-11 beat 0.41 0.64 +54.7% -5.7% -2.4% -1.8%
2024-12-12 miss 0.65 0.54 -17.5% +14.3% +15.4% +17.2%
2024-09-04 beat 0.26 0.35 +34.5% +5.1% -0.8% -3.7%
2024-06-06 beat 0.15 0.27 +80.1% +9.0% +0.7% +0.2%
2024-03-07 beat 0.48 0.66 +38.8% -13.3% -14.7% -18.9%
2023-12-07 beat 0.69 0.75 +8.7% -1.5% +1.2% -2.6%
2023-08-31 beat 0.51 0.59 +16.1% +12.6% +15.8% +11.7%
2023-06-06 beat 0.61 0.74 +20.7% -9.6% -10.8% -10.7%
2023-03-06 beat 0.36 0.64 +77.3% +10.5% +3.7% +1.2%
2022-12-08 beat 0.08 0.61 +684.1% +16.8% +20.0% +12.2%
2022-09-01 miss 0.34 0.33 -1.9% -6.4% -10.4% -12.6%
2022-06-02 miss 0.54 0.50 -7.4% -8.5% -1.3% -8.9%
2022-03-07 beat 0.45 0.47 +4.1% -2.2% -10.9% -18.6%
2021-12-09 miss 0.85 0.85 -0.6% +12.4% +15.6% +17.3%
2021-09-02 beat 0.79 0.92 +16.4% +0.2% +2.9% -5.2%
2021-06-03 beat 0.48 0.62 +28.6% +6.5% +7.3% +8.5%
2021-03-04 beat 0.45 0.52 +16.2% +3.1% -3.3% +5.3%
2020-12-10 miss 0.63 0.60 -4.4% -2.4% -2.3% +4.0%
2020-09-02 beat 0.82 1.06 +28.6% -22.4% -24.3% -30.8%
2020-06-04 beat 0.52 0.76 +46.4% -1.0% -4.2% -7.3%
2020-03-05 beat 0.38 0.52 +36.8% +1.6% +3.0% -16.6%
2019-12-12 miss 0.63 0.58 -8.3% +8.6% +20.4% +17.3%
2019-09-05 beat 0.58 0.71 +23.3% -6.2% -3.8% -4.0%
2019-06-06 beat 0.41 0.48 +16.1% +18.6% +26.8% +18.4%
2019-03-05 beat 0.30 0.33 +9.8% +6.6% -4.9% -7.0%
2018-12-13 beat 0.48 0.53 +10.0% +11.3% +8.6% +2.4%
2018-08-30 beat 0.36 0.48 +32.0% +10.7% +12.4% +13.1%
2018-05-31 miss 0.30 0.23 -24.0% +1.8% -4.2% +1.3%
2018-03-06 beat 0.12 0.15 +22.6% +5.7% +10.1% +17.7%
2017-12-07 miss 0.50 0.46 -8.5% +2.7% -1.9% +0.4%
2017-08-31 beat 0.49 0.51 +3.8% -8.7% -11.0% -10.5%
2017-06-01 beat 0.37 0.45 +22.3% +12.0% +15.8% +11.8%
2017-03-08 miss 0.29 0.26 -10.2% -5.0% -8.4% -9.3%
2016-12-08 miss 0.46 0.44 -5.3% +7.1% +15.1% +10.1%
2016-09-01 beat 0.38 0.42 +10.2% +4.1% +8.0% +1.0%
2016-06-02 beat 0.27 0.34 +26.9% +10.2% +12.8% +21.7%
2016-03-03 beat 0.14 0.18 +30.3% -18.2% -18.0% -17.3%
2015-12-10 beat 0.38 0.42 +10.3% -15.8% -16.9% -18.1%
2015-09-03 beat 0.33 0.37 +11.2% -4.4% +2.2% -2.1%
2015-06-04 beat 0.23 0.35 +50.4% +3.8% +0.8% +4.3%
2015-03-05 beat 0.03 0.12 +288.6% +1.8% +0.2% +1.1%
2014-12-11 miss 0.12 -0.08 -164.8% +6.1% +7.0% +13.6%
2014-09-04 beat 0.29 0.32 +11.7% -5.9% -9.5% -4.0%
2014-06-05 beat 0.13 0.17 +28.5% +15.9% +18.4% +16.9%
2014-03-06 beat 0.06 0.13 +129.9% +2.9% -3.5% -7.8%
2013-12-12 miss 0.24 0.16 -33.8% -3.2% -6.9% -3.0%
2013-09-04 beat 0.16 0.23 +44.2% +8.1% +13.8% +19.7%
2013-06-06 beat -0.01 0.02 +337.8% +13.1% +17.4% +25.8%
2013-03-07 beat -0.14 0.12 +186.9% +14.5% +17.3% +14.5%
2012-12-13 miss -0.06 -0.07 -20.2% +2.9% +1.5% +2.2%
2012-08-30 miss -0.02 -0.04 -110.9% -11.2% -19.5% -12.3%
2012-05-31 beat -0.03 0.04 +229.4% +5.3% +14.1% +19.7%
2012-03-07 miss -0.05 -0.17 -220.6% +7.3% +4.2% +14.6%
2011-12-08 miss 0.07 0.03 -56.7% +3.6% +1.0% -10.5%
Posted about CIEN See all ›
TRACKER - Analyst Ratings long 348.80 Mon, 21 Sep Evercore ISI Group upgraded CIEN, In-Line to Outperform with a $550 target, on 21 September 2026. The price shown is where CIEN last closed before… TRACKER - Analyst Ratings long 399.47 Thu, 20 Aug Northland Capital Markets upgraded CIEN, Market Perform to Outperform with a $500 target, on 19 August 2026. The price shown is where CIEN closed… TRACKER - Gilbert Cisneros · Congress long 439.34 Tue, 09 Jun Gilbert Cisneros's trade date was 14 May 2026 — a disclosed purchase of $1,001–$15,000. But a Periodic Transaction Report gives a date and a size…

Not investment advice.