Temple 8 Research
AI Buildout, Macro & Energy Infrastructure Research
Wolfspeed commands the silicon carbide wafer chokepoint as Western and Chinese supply chains separate. It holds 33.7% of the SiC wafer market including Chinese rivals and 55-60% excluding them, much as AXT does in indium phosphide. China may restrict exports to keep wafers for its own AI buildout. Its bankruptcy came from pioneering costly 8-inch SiC production before it had today's data-center revenue and pipeline, and it has since restructured. x.com x.com x.comÂ
Wolfspeed is no longer that speculative and deserves a chance as a core position, with upside-skewed probabilities. Valuation isn't demanding at all after the stock fell from the $70s to the $50s, and it has a huge asset base as demand inflects. Catalysts include 800V data centers, TSMC's 300mm silicon carbide interposers and the grid. x.comÂ
Wolfspeed is a pure-play bet on next-generation AI power and thermal management as it rises from a brutal 2024-2025. In January 2026 it produced the first 300mm single-crystal silicon carbide wafer, aligning SiC manufacturing with standard toolsets and sharply cutting costs. In March it unveiled a SiC platform for AI and HPC packaging, since SiC's thermal conductivity can solve the heat wall GPUs face. Its roughly $1.25B market cap rose 66% in 30 days as investors saw its data center role. x.comÂ
Wolfspeed has yet to show AI data centers can fix its economics. It has gone four quarters without sizing AI data-center revenue, reporting only decelerating sequential growth of roughly 50%, 30% and 20%, and calls the opportunity 'moderate'. Gross margin is -16.2%, with 1.7x debt to equity after a Chapter 11 that closed in September. Yet Lite-On's 800 VDC power racks, due for mass production in November, run on Wolfspeed's 200mm SiC, so a rerate could land on it first. x.com x.comÂ
Wolfspeed is a high-risk, asymmetric post-bankruptcy turnaround with the only 200mm silicon carbide fab at scale in the US, and its real market is solid-state transformers for hyperscaler power. It emerged with 45M shares, Renesas as anchor and CFIUS clearance. Q3 revenue missed at $150M and gross margins stay negative, but AI data-center revenue rose 50%, 43% of its first-lien debt is retired, capex fell 90% and opex was cut $200M. If output fills capacity, high short interest adds upside. … Show more
Silicon carbide is becoming the bottleneck material for the AI power stack, and Wolfspeed owns the only 200mm SiC wafer fab in the world. Capacity for SiC wafers is structurally constrained, and Wolfspeed is preparing for 300mm wafers in America, which supply-chain risk could make a strategic priority. x.comÂ
Pure or heavy silicon carbide players such as STMicroelectronics, onsemi and Wolfspeed look higher-risk and currently unappealing in the AI data-center shift to 800V DC power and solid-state transformers. The better risk/reward in that transition sits with power-electronics names positioned for it, such as Enphase and SolarEdge, whose bidirectional power-conversion know-how suits transformers that step 13 kV utility power down to 800V DC and must handle sudden GPU load swings. x.comÂ
Wolfspeed could be the best-performing stock by this time next year despite a weak quarter, because 800V DC power will need lots of new silicon-carbide hardware. Schulz Research notes substrate revenue fell 44.8% year over year to $43.3 million and GAAP gross margin was minus 25%. 800V DC was pushed out but will still come, requiring solid-state transformers and inverters that use SiC heavily. The market got carried away; the Rubin Ultra ramp is when it matters, and then it will matter big. … Show more
Silicon carbide's years of oversupply are turning, as China's Yangjie Tech says its capacity is fully booked, per SCMP, a positive sign for Infineon, Wolfspeed and STMicroelectronics. As more makers fail to meet rising demand, orders should also flow to Wolfspeed, whose heavily underutilized New York SiC fab would gain tremendous operating leverage. x.comÂ
Wolfspeed has clear upside if it executes, given its 300mm platform and growth drivers in data centers and solid-state transformers. It is a more speculative play, carrying gross margin and execution risks. x.comÂ
BorgWarner's 800V inverter platform could bring substantial silicon-carbide revenue to Wolfspeed. At an assumed $400 per EV for a traction inverter, within a $300-$600 range, 100,000-400,000 vehicles would imply $40 million-$160 million for Wolfspeed, versus $650 million in revenue now. A prior BorgWarner program covered 400,000 vehicles; volume could be higher as EVs made up 25% of new vehicle sales in 2025 and should keep gaining share. x.comÂ
