Ciena (CIEN) — Daily Price Character
Historical session stats from dividend-adjusted prices: win rate, streaks, record days, weekday patterns, and (when available) how often the stock was green on S&P 500 green days.
CIEN
Archetype
Explosive
High daily volatility — frequent large price swings.
Win rate
49.5%
3647 green · 3604 red · 114 flat · 7365 sessions
Current streak
2 green
As of May 20, 2026
Max win / lose streak
12 / 9 days
Win streak return: +36.88% · Lose: 7.60%
Median / σ daily
+0.000% · 4.197%
Avg green +2.86% · avg red 2.68%
Extreme days (>3%)
30.4%
1125 up · 1113 down
History from Feb 10, 1997 through May 20, 2026 · 7365 trading days with returns.
Trailing year — daily returns (calendar)
May 23, 2025 – May 20, 2026 · Mon–Fri sessions only
Monday–Friday — average return
Average dividend-adjusted return on that weekday (green / red by sign). Green/red day rule: ±0.01% vs prior close.
Monday–Friday — win rate
Share of sessions that closed green on that weekday. Bars are green at or above 50%, red below 50%.
Top green days
Largest single-session gains (dividend-adjusted), by historical return.
| Date | Return |
|---|---|
| Sep 22, 1998 | +41.48% |
| Oct 19, 1998 | +30.22% |
| Jan 3, 2001 | +28.94% |
| Dec 22, 2000 | +28.60% |
| Nov 2, 1998 | +26.89% |
| Jun 6, 2019 | +26.78% |
| Oct 3, 2001 | +26.50% |
| Oct 29, 1998 | +26.00% |
| Jan 7, 2000 | +25.89% |
| Apr 30, 1997 | +25.01% |
| Dec 5, 2000 | +24.47% |
| Dec 7, 1999 | +23.68% |
| Sep 4, 2025 | +23.31% |
| Dec 9, 2004 | +23.08% |
| Jan 22, 1999 | +22.80% |
| Oct 11, 2001 | +22.12% |
| Apr 10, 2001 | +22.07% |
| May 30, 2000 | +21.88% |
| May 8, 2002 | +21.02% |
| Dec 12, 2019 | +20.36% |
Worst red days
Largest single-session losses; "Days to recovery" counts trading sessions until close recovered the prior peak (dividend-adjusted).
| Date | Return | Days to recovery |
|---|---|---|
| Aug 21, 1998 | 44.96% | 326 |
| Aug 16, 2001 | 30.23% | 6092 |
| Sep 9, 1998 | 30.16% | 116 |
| Feb 20, 1998 | 27.74% | 71 |
| Sep 4, 2008 | 24.90% | 402 |
| Aug 4, 2004 | 24.64% | 89 |
| Sep 3, 2020 | 24.32% | 189 |
| Dec 19, 2000 | 24.06% | 18 |
| Aug 14, 1998 | 23.97% | 334 |
| Jan 27, 2025 | 21.04% | 148 |
| Aug 31, 1998 | 20.35% | 219 |
| Dec 11, 2008 | 19.97% | 16 |
| Oct 25, 2000 | 19.94% | — |
| Aug 30, 2012 | 19.50% | 127 |
| Jan 2, 2001 | 18.92% | 1 |
| Mar 12, 2001 | 18.14% | 27 |
| Mar 3, 2016 | 17.96% | 64 |
| Feb 4, 2004 | 17.83% | 4099 |
| Sep 29, 2008 | 17.74% | 147 |
| Sep 10, 1998 | 17.42% | 37 |
Frequently asked questions
What is the daily win rate for Ciena (CIEN)?
Historically, Ciena (CIEN) closed green on 49.5% of trading days (3647 green, 3604 red, 114 flat), using dividend-adjusted closes and a ±0.01% threshold for green vs red.
What is the current winning or losing streak for Ciena (CIEN)?
As of 2026-05-20, Ciena (CIEN) is on a 2-day winning streak (consecutive green or red days by the same rules, ignoring trailing flat days).
What does Steady, Balanced, or Explosive mean for Ciena (CIEN)?
We label Ciena (CIEN) as "explosive" based on the sample standard deviation of daily returns: High daily volatility — frequent large price swings.
What were the best and worst single trading days for Ciena (CIEN)?
Largest single-day gain: +41.48%. Largest single-day loss: 44.96%. Tables on this page list the top record green and red days.
What counts as an "extreme" daily move for Ciena (CIEN)?
We treat a day as extreme if the absolute dividend-adjusted daily return exceeds 3%. About 30.4% of trading days for Ciena (CIEN) were extreme (1125 up, 1113 down).
Data & methodology
How are green, red, and flat days defined?
We use dividend-adjusted (or close-to-close for non-equity) daily returns. Green: return ≥ +0.01%. Red: return ≤ −0.01%. Flat: between those bounds.
How is the current streak calculated?
We count consecutive green or consecutive red days using the same thresholds. If the most recent session is flat, we skip trailing flat days and measure from the last non-flat close.
What does “vs S&P 500” mean?
On sessions where the S&P 500 (^GSPC) was green, we report how often this stock was also green. Shown only for USD equities when benchmark data exists and the symbol is not the index itself.
Where does the archetype come from?
Sample standard deviation of daily returns: low → Steady, high → Explosive, otherwise Balanced. Labels describe typical daily volatility, not quality of the investment.
Explore more
CIEN Overview
Company profile, financial tools, and key metrics
CIEN Revenue Counter
Earns $162.49 every second. See per minute, hour, and day.
CIEN Earnings Counter
Earns $7.26 per second net profit. See per minute, hour, and day.
CIEN Economic Scale
Exceeds Eswatini's GDP. Compare with world economies.
CIEN What If Invested
What if you had invested $1,000? See historical returns from any date.
CIEN How It Makes Money
Discover visual breakdown of $5.12B in revenue — where it comes from and where it goes.
CIEN Stock Seasonality
Best and worst months to invest. Historical monthly returns heatmap.
CIEN Price Target Scenarios
Model bear, base, and bull cases with EPS growth and exit P/E — pre-filled from analysts and history.
CIEN Buybacks
0.86% TTM buyback yield. Shareholder yield & SBC comparison.
CIEN Stock Split History
2 splits on record. Dates, ratios, and cumulative multiple.
CIEN Financials
Revenue, EPS, EBITDA, market cap, debt and balance sheet history with annual and quarterly data.