Which Optics Stock Has Dominated in 2026: Applied Optoelectronics, Lumentum, or Coherent?
Applied Optoelectronics (AAOI) leads optics stocks with 203% YTD gain, driven by U.S. restrictions and 800G demand. Lumentum (LITE) up 139%, Coherent (COHR) up 53%. AAOI's Q2 revenue rose 86.4% YoY, LITE's Q4 up 109.3%, COHR's Q4 data center revenue up 59% YoY. All outperform SOXX and SPY, riding AI datacenter capex growth.
How this was made
The 30-second read
Why it matters
Earnings beats and forward guidance for AAOI and Lumentum provide fresh bullish catalysts, while Coherent's mixed results temper its upside.
Market read
The optics sector's outperformance highlights AI infrastructure spending as a key driver for tech equities.
What to watch
Potential supply‑chain constraints on 800G components and regulatory tightening on Chinese optics could reverse the rally.
Background
The article compares three U.S.-listed optics companies that have outperformed the broader market due to AI datacenter spending and policy shifts.
Ticker impact
AAOI reported Q2 FY2026 revenue of $191.9M (+86.4% YoY) and raised Q3 guidance to $255‑$290M, plus disclosed a large equity offering.
Potential short‑term rally toward $115‑$120, with volatility from the equity offering.
Revenue growth and guidance exceed consensus, but dilution risk introduces downside pressure.
Lumentum posted Q4 FY2026 revenue of $1.006B (+109.3% YoY) and guided Q1 FY2027 revenue to $1.25B, highlighting margin expansion.
Likely to test $950‑$1,000 resistance levels.
Margin expansion and strong demand outlook reinforce bullish case.
Coherent delivered Q4 FY2026 datacenter revenue of $1.615B (+59% YoY) and set FY2027 guidance at $2.2‑$2.4B, while noting flat industrial revenue.
Sideways range bound between $270‑$300 pending further guidance.
Growth is offset by segment drag, limiting clear directional bias.
Market effects
AI‑driven datacenter optics demand lifts the entire sector, outpacing broader semiconductor ETFs.
U.S. optics firms benefit from policy restrictions on Chinese suppliers, reinforcing domestic exposure.
The optics rally contributes to overall AI capex momentum, influencing global tech sentiment.
Counterpoint
Equity raise at AAOI and Coherent's industrial drag could signal overextension; a pullback may be imminent.
Key entities
- CompanyApplied Optoelectronics
U.S.-listed optics firm with strong Q2 FY2026 results and new equity offering.
- CompanyLumentum Holdings
U.S.-listed optics firm delivering record Q4 FY2026 revenue and upbeat Q1 FY2027 guidance.
- CompanyCoherent
U.S.-listed optics firm with solid datacenter growth but flat industrial segment.
