Networking stocks rallied with the tech rebound as suppliers of AI data center gear drew buying: Ciena (CIEN) rose 4% to $347.48 and Arista Networks (ANET) climbed 4% to $183.32, well ahead of the iShares U.S. Technology ETF (IYW) at 1.29% and the Invesco QQQ Trust (QQQ) at 1.31%, while Cisco (CSCO) was practically unchanged at $107.06. Ciena's fiscal Q3 2026 adjusted EPS was $2.11 against a $1.73 consensus, with revenue up 37% year over year to $1.67 billion, and it raised fiscal 2026 revenue guidance to $6.42 billion. Its backlog reached $8.5 billion, but supply remains the limit, and management does not expect the market to return to balance before 2028. Two customers made up 41.7% of Q3 revenue, so Ciena's growth is concentrated. The next test is whether Ciena can hit its fiscal Q4 2026 revenue guidance of $1.75 billion under tight component supply.
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Related tickers and likely impact
QQQ
▲ Likely positiveInvesco QQQ Trust
Relevance: low
| Market | US stocks |
|---|---|
| Sector | ETF |
| Close on 10/16/2026 | 709.82 |
| Change that session | -2.50% |
NVDA
▲ Likely positiveNvidia
Relevance: low
| Market | US stocks |
|---|---|
| Sector | Information Technology |
| Industry | Semiconductors |
| Market cap | $5.2T |
| Close on 10/16/2026 | 214.14 |
| Change that session | -1.42% |
Impact is scored by AI from the headline and may be wrong. It is not investment advice.
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