CIEN · Ciena Corporation

NEW YORK STOCK EXCHANGE, INC. - Real Time Price • USD

Ciena Corp (CIEN)

NEW YORK STOCK EXCHANGE, INC. Communications
Options chain →
$354.52 -5.81 (-1.61%)
At close: September 2 at 4:00:00 PM EDT
$366.00 +11.62 (+3.28%)
🌅 Pre-Market: 8:38:14 AM EDT
DAY'S RANGE $354.52
$348.99 $359.21
52-WEEK RANGE $354.52
$92.46 $637.51

What's happening

Deterministic template sentences filled in from the same sourced figures shown elsewhere on this page -- not an AI-written summary, no live model call.

Key Statistics

Market Cap$50.13B
P/E (TTM1)143.00
EPS2 (TTM)$3.00
Div Yield
Beta31.32
Volume157,141
Open354.87
Prev Close360.33
Bid / Ask333.73 / 380.10
Next Earnings 2026-09-03 (before market open)

Analyst Recommendations

Strong buy 7 Buy 12 Hold 7 Sell 0 Strong sell 0

Aggregate ratings for 2026-09-01 (26 analysts polled by Finnhub) — consensus count.

Performance Overview (Trailing returns vs S&P 500 benchmark)

YTD RETURN
CIEN +51.43%
vs S&P 500 +39.23%
1-YEAR RETURN
CIEN +273.51%
vs S&P 500 +254.65%
6-MONTH RETURN
CIEN +1.57%
3-MONTH RETURN
CIEN -43.52%

Valuation Measures & Ratios

Enterprise Value4$63.17B
Forward P/E554.08
PEG Ratio60.38
Price / Sales (TTM1)11.25
Price / Book726.33
EV4 / Revenue11.34
EV4 / EBITDA118.64
Profit Margin7.87%
Operating Margin9.18%
Return on Equity (ROE8)15.65%
Return on Assets (ROA9)7.45%
Avg Volume (3M)2,507,670
Quarterly history (5 periods)
Measure May '26Jan '26Aug '25May '25Feb '25
Market cap $78.47B $36.73B $12.74B $10.88B $12.53B
P/E 183.45 144.52 107.89 213.74 136.95
Price/Sales 14.69 7.58 2.92 2.69 3.16
Price/Book 27.13 13.15 4.57 3.92 4.49
EV/Revenue 14.78 7.67 3.03 2.83 3.33
ROE 14.79% 9.10% 4.24% 1.83% 3.28%
ROA 7.08% 4.31% 2.05% 0.90% 1.64%

Trailing-twelve-month ratios computed from SEC EDGAR quarterly figures and historical daily close prices (Alpaca). Diluted shares are derived from Net income ÷ EPS (diluted) for each quarter, not separately reported. Forward P/E and PEG aren't shown here — both need historical analyst-consensus estimates, which no free source provides; see the current-period figures above instead.

Glossary — what these abbreviations mean
1. TTM
Trailing twelve months — the sum of the last four reported quarters, not a calendar year or the single latest quarter.
2. EPS
Earnings per share — net income divided by diluted shares outstanding.
3. Beta
A stock's historical volatility relative to the overall market. Above 1 means it has moved more than the market; below 1, less.
4. EV (Enterprise Value)
Market cap plus total debt minus cash — roughly what it would cost to buy the whole company, debt included.
5. Forward P/E
Price divided by analysts' estimated earnings for the next 12 months, instead of trailing actual earnings.
6. PEG Ratio
P/E divided by expected earnings growth rate. A lower number can indicate a stock is cheap relative to how fast it's expected to grow.
7. Price / Book
Share price divided by book value (assets minus liabilities) per share.
8. ROE
Return on equity — net income divided by shareholders' equity, a measure of how efficiently a company turns equity into profit.
9. ROA
Return on assets — net income divided by total assets, a measure of how efficiently a company turns assets into profit.
10. MRQ
Most recent quarter — the single latest reported period, as opposed to TTM. The Financials section's "Quarterly" view below shows MRQ-style figures.
11. YoY
Year over year — percent change versus the same period one year earlier, used for growth figures like those on Compare cards and the Screener.

Short Interest

Shares Short2,921,400
Change from Prior Settlement-21.28%
% of Float
Days to Cover (Short Ratio)1.37

Source: FINRA Rule 4560 consolidated short interest, settlement date 2026-08-14. Reported bi-monthly with a reporting lag — not real-time.

Quotes and the 1-day extended-hours chart: Yahoo Finance. Longer historical charts: Alpaca (IEX feed) — real-time but IEX-only volume (~2.5% of consolidated market volume). Fundamentals + earnings: Finnhub.

Price history

Events

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Technical signal summary

Calculating from the latest year of daily price history…

Calculating…
Show Technical Analysis Breakdown ▾ 10 Indicators

Signals describe daily price patterns—not the company’s value and not a recommendation to buy or sell. Read several together; no single indicator predicts what happens next. “Overbought” and “oversold” are conditions, not promises of a reversal.

Indicators None active

Add lines over the price chart or a panel below it. Your choices are saved on this device.

Starter sets
Trend
Oscillators
Volume/volatility
Loading chart…

Free IEX historical data only goes back to ~2021 — 5Y/Full show whatever's actually available, not a promise of that much history. Indicators are computed client-side from these same price bars; earnings markers ("E") come from Finnhub's free tier (~last 4 quarters + next upcoming) — older quarters aren't available. The move-highlight dots are a heuristic (|% change| vs rolling volatility) with a best-effort headline lookup, not a claim of causation.

Peer and sector context

No reviewed peer group is available for this symbol.

Balanced evidence

A deterministic summary of sourced facts—not an AI verdict.

Potential strengths

Potential concerns

Rule-based facts only; absence from either side is not evidence, and this is not a recommendation.

Financials

Income statement

Line item May '26Jan '26Aug '25May '25Feb '25Jul '24Apr '24Jan '24
Revenue $1.57B $1.43B $1.22B $1.13B $1.07B $942.3M $910.8M $1.04B
Gross profit $691.6M $625.5M $503.1M $452.8M $471.8M $403.9M $388.7M $467.0M
Operating income $237.9M $189.4M $73.5M $32.8M $80.7M $26.7M -$4.0M $84.6M
Net income $218.2M $150.3M $50.3M $9.0M $44.6M $14.2M -$16.8M $49.5M
EPS (diluted) $1.49 $1.03 $0.35 $0.06 $0.31 $0.10 $-0.12 $0.34
EPS (basic) $1.54 $1.06 $0.35 $0.06 $0.31 $0.10 $-0.12 $0.34

Balance sheet

Line item May '26Jan '26Nov '25Aug '25May '25Feb '25Nov '24Jul '24
Total assets $6.04B $5.89B $5.86B $5.75B $5.66B $5.57B $5.64B $5.58B
Total liabilities $3.15B $3.10B $3.14B $2.96B $2.88B $2.78B $2.83B $2.68B
Stockholders' equity $2.89B $2.79B $2.73B $2.79B $2.78B $2.79B $2.82B $2.89B
Total current assets $3.57B $3.54B $3.57B $3.69B $3.56B $3.49B $3.54B $3.54B
Total current liabilities $1.31B $1.26B $1.31B $1.12B $1.05B $956.5M $999.8M $870.6M
Cash & equivalents $1.05B $1.12B $1.09B $1.06B $949.8M $874.7M $934.9M $883.4M

Cash flow

Line item May '26Jan '26Nov '25Aug '25May '25Feb '25Nov '24Jul '24
Operating cash flow $259.7M $227.6M $371.1M $174.3M $156.9M $103.7M $349.4M -$159.4M
Investing cash flow -$153.9M -$43.9M -$213.8M $19.7M $19.6M -$67.1M -$148.9M -$18.8M
Financing cash flow -$180.7M -$154.5M -$119.8M -$84.9M -$107.8M -$93.5M -$148.7M -$28.5M
Free cash flow $218.7M $153.8M $325.6M $134.6M $128.2M $76.8M $265.8M -$179.0M
Capital expenditures $41.0M $73.9M $45.4M $39.8M $28.7M $26.9M $83.5M $19.6M
Share-based compensation $55.5M $49.8M $143.7M $46.9M $48.0M $40.8M $118.6M $37.4M

Source: SEC EDGAR XBRL filings (10-Q/10-K), as originally tagged by the company. Quarterly cash flow is reconstructed by de-cumulating fiscal-year-to-date figures (how cash flow is tagged in 10-Qs); other quarterly lines are reported directly.

Institutional holders

SEC Form 13F filers holding CIEN as of the latest reported quarter. 13F only covers investment managers with $100M+ in assets — this is not a complete ownership picture, and does not include insiders (see Recent SEC filings below) or non-13F-eligible holders.

Institutional ownership is not available for this symbol right now.

Insider activity

Directors, officers, and 10%+ owners' reported transactions from SEC Form 4. A filing reports a transaction; it does not by itself explain why it happened.

Insider activity is not available for this symbol right now.

Recent SEC filings

Official company reports and insider transaction filings. Form 4 reports a transaction; it does not by itself explain why it happened.

Source: SEC EDGAR submissions · updated 2026-09-03 11:45 UTC

FiledFormReport periodOfficial filing
2026-09-038-K2026-09-03 View on SEC.gov →
2026-09-0242026-09-01 View on SEC.gov →
2026-08-1842026-08-14 View on SEC.gov →
2026-08-1842026-08-14 View on SEC.gov →
2026-08-1842026-08-17 View on SEC.gov →
2026-08-1842026-08-17 View on SEC.gov →
2026-08-0442026-08-01 View on SEC.gov →
2026-08-0442026-08-03 View on SEC.gov →
2026-07-1742026-07-15 View on SEC.gov →
2026-07-1742026-07-15 View on SEC.gov →
2026-07-1742026-07-15 View on SEC.gov →
2026-07-1742026-07-15 View on SEC.gov →

Headlines about CIEN (Ciena Corporation). Links open the publisher — we don’t host full articles.

SEC filings ↓

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