Markets · US Stock · NYSE

CIEN Ciena

$443.65 +13.85%
US Stock · Information Technology

Solid = close · dashed = 50-day MA · bars = volume. Toggle Bollinger / RSI / MACD. Hover to inspect. EOD data.

1D
+13.85%
YTD
+192.90%
P/E
83.26
P/B
9.79
ROE
22.8%
Div yield
—
Beta
2.51
Market cap
$54.5B
RSI (14)
70
Next earnings
Dec 9, 2026

Previous session

close of Oct 6, 2026 · EOD, no live order book
Open
$393.58
Close
$443.65
VWAP (n/a)
—
Day high
$446.37
Day low
$392.00
Volume
6.4M

VWAP = daily turnover ÷ volume — the volume-weighted average, the closest EOD read on where trading actually clustered. A true order book is live-only and needs a broker feed. Turnover/VWAP available for MOEX listings.

Latest headlines

Headlines via Yahoo Finance · links open the source · not an endorsement.

Recent SEC filings

Source: SEC EDGAR · opens the official filing.

Research & reports

External resources — availability and opinions are theirs, not ours.

This is reference data for your own analysis — not a recommendation to buy or sell CIEN. Try it in the Lab to size a position and see the risk.