Earnings call transcript: Soitec tops Q1 2027 guidance as photonics demand surges

Soitec reported Q1 FY2027 revenue of EUR 113m, up 23% YoY and above its ~15% guidance (about +8pp beat). Edge & Cloud AI rose 47% YoY (to EUR 65m) and Photonic SOI sales doubled YoY, while management guided Q2 revenue for growth of >30% YoY and expects FY2027 Photonic SOI revenue to more than double FY2026 (slightly above $100m). Shares reacted positively, up 9.09% to $59.75, though Mobile Communications remains weak (revenue down 10% YoY) and profitability recovery is expected to take time.

Analysis

This is less a one-quarter beat than evidence that photonics is becoming the scarce input in the AI interconnect stack. The second-order winner is the company that can qualify capacity fastest; the loser is any supplier still tied to legacy mobile exposure or single-site execution. The real moat is not the wafer itself but the ability to convert customer reservations into shipped volume without yield slippage, which should keep pricing firmer than the market expects for several quarters.

Near term, the stock will trade on whether management can keep converting demand into sequential growth without a bottleneck narrative. The key falsifier is a pause in customer qualification, a slip in the Singapore ramp, or any sign that current demand is mostly pre-buying for next year rather than sustained end-use pull. Over 6-18 months, the bigger swing factor is margin leverage: if utilization rises faster than funding headwinds fade, EBIT can inflect materially; if not, revenue growth will outpace profit.

Consensus looks at this as an AI beneficiary, but may be missing that the market is paying up for visibility while the P&L still carries structural drag. That makes the setup asymmetric: the move is probably underdone on a 12-month basis if photonics stays tight, but overdone if investors extrapolate this quarter's demand curve linearly into FY28 before margin recovery is proven.

Key Decisions for Investors

• Long SLOIY on pullbacks over the next 1-3 weeks; use the post-gap strength to build exposure only if the stock holds above the prior breakout zone. Target is 3-6 months of sequential photonics growth with a favorable revenue/mix inflection.
• Pair trade: long SLOIY / short QCOM for a 1-3 month relative-value view. Rationale: SLOIY is levering AI optical buildout, while QCOM remains more exposed to handset digestion and slower mobile mix recovery.
• If liquidity is sufficient, express bullishness with limited-risk upside via 3-6 month call spreads on SLOIY rather than outright stock; the thesis is execution-driven, so defined-risk structures fit the catalyst path.
• Set a watch item on Q2 revenue and fab loading: if growth does not stay sequential and utilization stalls below the implied ramp path, reduce exposure quickly; that would suggest demand is being pulled forward rather than structurally re-rated.