Jim Cramer Weighs In on Lumentum (LITE) and Coherent (COHR) Post-Earnings
CNBC’s Jim Cramer discussed post-earnings moves in Lumentum (LITE) and Coherent (COHR). Lumentum reported FQ4 2026 net revenue of $1.01B (+109% YoY) and non-GAAP EPS $3.23, and guided Q1 FY2027 revenue $1.225B-$1.275B. Coherent reported FQ4 2026 revenue $2.05B (+34%) and non-GAAP EPS $1.74, but shares fell after-hours despite guidance.
How this was made

The 30-second read
Why it matters
For LITE, the actionable element is the combination of large YoY revenue growth and explicit Q1 FY2027 guidance. For COHR, the actionable element is the contrast between strong reported numbers and a sell-the-news after-hours reaction, suggesting expectations were already elevated.
Market read
Earnings and guidance numbers for both LITE and COHR are the core catalysts, with COHR’s after-hours dip signaling expectation risk despite a strong quarter.
What to watch
Forward valuation multiples and short interest are highlighted; these can dominate price action even when guidance is strong.
Background
The article summarizes Jim Cramer’s take on post-earnings trading in optical hardware, focusing on Lumentum’s beat-and-raise and Coherent’s beat followed by after-hours selling.
Ticker impact
Lumentum reported FQ4 2026 net revenue of $1.01B (+109% YoY) and issued Q1 FY2027 revenue and EPS guidance.
Bias to continued upside follow-through in the next sessions, with volatility risk from elevated forward P/E and shorts.
The article provides concrete earnings and forward guidance figures, but it frames the move as part of a broader optics rally and notes valuation/short-interest dynamics.
Coherent posted FQ4 2026 net revenue of $2.05B (+34% YoY) and guided Q1 FY2027 revenue and non-GAAP EPS, yet shares fell after-hours.
Near-term range trading is more likely than a straight trend, unless follow-on commentary changes expectations.
The text includes both the beat-and-guidance numbers and the after-hours dip, indicating a mixed market response rather than a clean catalyst.
Market effects
Strong Lumentum and Coherent results reinforce AI-data-center optical networking demand expectations, potentially lifting photonics peers via read-across.
Primarily US-listed optics names; limited direct regional spillover beyond US trading flows.
AI cluster buildouts are global, so positive optics earnings can influence broader global supply-chain sentiment for photonics components.
Counterpoint
After-hours weakness in COHR implies the market may be trading expectations rather than fundamentals, so upside may be capped without incremental demand signals.
Key entities
- companyLumentum Holdings Inc.
Optical technology company reporting FQ4 2026 results and issuing Q1 FY2027 guidance.
- companyCoherent Corp.
Optical technology company reporting FQ4 2026 results and issuing Q1 FY2027 guidance, with after-hours weakness.
- personJim Cramer
CNBC Mad Money host whose commentary frames the market’s disconnect between trading dynamics and fundamentals.





