GFS Partners with Sivers on Silicon Photonics for AI Data Centers

What happened

GlobalFoundries announced a strategic collaboration with Sivers Semiconductors to integrate Sivers' laser arrays into GF's silicon photonics platform, targeting the $25B pluggable optics market by 2030. This partnership aligns with GF's long-term AI infrastructure build-out, which includes recent acquisitions like MIPS and AMF/InfiniLink. However, the latest DeepValue master report rates GFS as a 'Potential Sell' with conviction 3.5/5, highlighting underutilized fabs, margin compression, and smartphone weakness as near-term headwinds. The report notes that AI-related initiatives such as silicon photonics remain pre-revenue with minimal quantified contributions before 2027, so this collaboration does not alter the near-term risk/reward calculus. While strategically positive, the partnership does not address the core challenges of utilization below 80% and reliance on handset demand, which continue to pressure earnings.

Implication

If this collaboration leads to Tier-1 design wins and revenue contributions by 2027-2029, it could support the bull scenario ($60) by diversifying revenue into high-growth AI optics. However, material revenue is unlikely within 18 months, and the core thesis—overvaluation given current operating metrics—remains intact. Investors should monitor utilization and non-IFRS gross margin trends rather than distant photonics opportunities.

Thesis delta

The partnership bolsters the long-term AI narrative but does not shift the fundamental thesis: GFS is trading at ~17x EV/EBITDA despite flat revenue, underutilization, and a $935M impairment. The near-term outlook remains constrained by smartphone weakness and Chinese mature-node overcapacity; the collaboration does not change these dynamics. The thesis delta is zero—the rating and price target ($38 attractive entry, $55 trim) remain unchanged.