CIEN· Ciena Corp.

CUSIP 171779309·Sector Technology →·

·Investor Relations ↗

Current price

$548.11

Market cap

$77.5B

52w low

$70.77

52w high

$583.78

Whale holders

Aggregate held

$23M

Net flow (Q/Q)

-$20M

Insider buys/sells · last 6 mo · open market only

	Transactions	Total $
Buys	0	$0
Sells	1	$2M

Whale	% of portfolio	Recent activity	Δ shares	Value
No matching holders for this view.

Held alongside CIEN

Top stocks CIEN's whales also own — ranked by holder overlap

GOOGAlphabet Inc.· 2 shared METAMeta Platforms, Inc.· 2 shared BDXBecton Dickinson & Co.· 2 shared TSMTaiwan Semiconductor Mfg Ltd.· 2 shared ORCLOracle Corp.· 2 shared CHRWC H Robinson Worldwide Inc.· 2 shared NEMNewmont Corp.· 2 shared CRMSalesforce Inc.· 2 shared MSFTMicrosoft Corp.· 2 shared BKBank New York Mellon Corp.· 2 shared

Quarterly ownership history

Last 6 quarters

Quarter	Whales	Aggregate	Buying	Selling	Net flow
2026-03-31	1	$23M	0 · $0	1 · $20M	-$20M
2025-12-31	2	$10M	1 · $265K	2 · $293M	-$292M
2025-09-30	3	$303M	3 · $293M	1 · $858K	$292M
2025-06-30	3	$11M	3 · $10M	0 · $0	$10M
2025-03-31	1	$637K	1 · $186K	0 · $0	$186K
2024-12-31	1	$452K	1 · $452K	0 · $0	$452K

CIEN Financials

Live via yfinance — refreshed daily.

Valuation

Market capitalization$77.5B

Enterprise value$77.8B

EV / EBITDA (TTM)136.35

P/E ratio (TTM)344.72

Forward P/E63.35

P/S ratio15.12

P/B ratio27.77

PEG ratio2.29

Cash Flow

Operating cash flow (TTM)$930M

Free cash flow (TTM)$699M

Total cash$1.3B

Total debt$1.6B

Debt / equity56.93

Current ratio2.81

Income Statement

Total revenue (TTM)$5.1B

Revenue per share (TTM)36.11

Gross profit (TTM)$2.2B

EBITDA (TTM)$571M

Net income (TTM)$229M

EPS diluted (TTM)1.59

Shares outstanding141,398,427

Float shares140,596,698

Profitability

Gross margin42.13%

Operating margin13.40%

EBITDA margin11.13%

Net margin4.47%

Efficiency

Return on assets (TTM)4.58%

Return on equity (TTM)8.20%

Price History

Current price$548.11

52 Week high$583.78

52 Week low$70.77

50 day average$436.68

200 day average$248.70

Average volume (10 day)2,113,970

1-year beta1.25

1-year price target$410.91

Dividends

Dividend yield—

Dividend rate (annual)—

Payout ratio0.00%

Fundamentals are sourced from yfinance and refreshed daily. Last updated May 10, 2026, 5:36 PM. Empty cells (—) mean yfinance doesn't have that field for this ticker (common for ADRs, recent IPOs, or non-applicable ratios).

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