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TD Cowen initiates Arista, Coherent and Ciena at Buy; Lumentum receives Hold rating

Mar 12, 2026 &03101212202631; 14:10 UTC seekingalpha.com Trending 3/5

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Positive for markets

Sentiment score: +65/100

Moderate impact Short-term (days)

WHAT THIS MEANS

TD Cowen initiated coverage on three optical networking companies with bullish ratings: Arista and Coherent at Buy, while Ciena also received Buy. Lumentum received a Hold rating, suggesting more caution on this competitor in the optical components space.

AI CONFIDENCE

75% High

SENTIMENT GAUGE

NEWS POWER SCORE

AFFECTED ASSETS

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ANET

ANETStock

Expected to rise

Arista Networks initiated at Buy by TD Cowen, positive catalyst for optical networking demand

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COHR

COHRStock

Expected to rise

Coherent initiated at Buy by TD Cowen, benefiting from data center and optical infrastructure trends

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CIEN

CIENStock

Expected to rise

Ciena initiated at Buy by TD Cowen, positioned well in optical networking sector

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LUMN

LUMNStock

Expected to decline

Lumentum received Hold rating, underperforming relative to peers in optical components

PRICE HISTORY

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⚡ SUGGESTED ACTION

Consider long positions in ANET, COHR, and CIEN on this positive analyst initiation, while monitoring LUMN for potential underperformance. The optical networking sector appears well-positioned for medium-term growth driven by data center expansion.

KEY SIGNALS

Analyst initiation with Buy ratings signals confidence in sector growthDivergence between Buy and Hold ratings suggests selective opportunityOptical networking benefiting from AI/data center infrastructure expansionRelative weakness in Lumentum vs. competitors indicates market share concerns

SECTORS INVOLVED

TechnologySemiconductorsOptical NetworkingData Center Infrastructure

Analysis generated on Mar 17, 2026 at 00:00 UTC

Disclaimer: This analysis is generated by artificial intelligence for informational purposes only and does not constitute financial advice, investment recommendation, or solicitation. Original reporting by Seeking Alpha. Always conduct your own research and consult a qualified financial advisor before making investment decisions.

TD Cowen initiates Arista, Coherent and Ciena at Buy; Lumentum receives Hold rating

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