Wolfspeed
US maker of silicon carbide chips for EVs, industrial power, and now AI data centers.
On the record
Checkpoint: Q4 FY26 earnings report, watched for gross margin direction and total revenue trend
The call
Wolfspeed has real fabs and an AI demand tailwind but is still burning cash and refinancing while bigger rivals match its 200mm capacity.
Wolfspeed designs and builds silicon carbide chips, which power electric cars and data centers. The company has real factories in the United States and years of technical know-how, which are hard to copy quickly. However, larger competitors like STMicroelectronics and Infineon are already building their own factories and stealing market share, and there is nothing stopping them from doing so. Wolfspeed is losing money on every chip it sells (negative 27 percent profit margin) and has had to restructure its debt twice in recent months, a sign the company is burning through cash. The only thing that could turn this around is if demand from artificial intelligence data centers grows so fast that it forces Wolfspeed's profit margins positive and its total sales back up within the next few months, but the current trend does not show that happening.
Why
01
AI pressure: None apparent. AI data-center demand is feeding Wolfspeed's revenue, not eating it, growing roughly 50% then 30% sequentially in recent quarters. Could AI do the core job? Unlikely.
02
Bigger players: STMicroelectronics, Infineon, onsemi. STMicro already runs 200mm SiC capacity in Italy, matching Wolfspeed's former edge while backed by far larger balance sheets. Could a giant copy it? Yes, easily.
03
What protects it. Owns the only volume US 200mm SiC fabs plus decades of materials IP and fresh CHIPS Act cash.
What would change this call
Wolfspeed Q4 FY26 earnings (~Aug 19-20, 2026) show gross margin still negative. Would show AI data-center demand isn't yet offsetting legacy SiC revenue decline.
Wolfspeed announces a third capital raise or covenant renegotiation within 2026. Would show cash burn continuing despite two prior restructurings.
STMicro or Infineon publicly report 200mm SiC customer wins previously supplied by Wolfspeed. Would confirm larger rivals are converting Wolfspeed's technical edge into share gains.
Wolfspeed announces a third capital raise or covenant renegotiation within 2026. Would show cash burn continuing despite two prior restructurings.
STMicro or Infineon publicly report 200mm SiC customer wins previously supplied by Wolfspeed. Would confirm larger rivals are converting Wolfspeed's technical edge into share gains.
Key numbers
- Q3 FY26 revenue $150.2M, down 19% YoY, gross margin -27%
- Debt cut ~70%, from $6.7B to $2B after bankruptcy
- AI data-center revenue grew ~50% then ~30% sequentially
Named risks
- Persistent negative gross margins (-27% to -34%) with no clear near-term path to breakeven.
- CHIPS Act funding uncertainty after proposed grant elimination and $7.4B clawback in prior awards.
- Second capital restructuring within six months of bankruptcy exit signals ongoing cash fragility.
- Larger diversified rivals (STMicro, Infineon) and Chinese entrants eroding Wolfspeed's 200mm and pricing edge.
- Unresolved Navitas patent litigation outcome could affect IP position and costs.
Rivals, as read in July 2026
| Rival | Direction | Evidence |
|---|---|---|
| STMicroelectronics | gaining on | Built rival 200mm SiC wafer capacity in Italy, eroding Wolfspeed's exclusivity, per 2023-06-07 report |
| Infineon | contesting | Named among top five SiC device suppliers directly contesting Wolfspeed's market as of 2026-02-22 |
| onsemi | contesting | Listed as leading SiC player alongside STMicro in market research dated 2026-02-22 |
| Navitas Semiconductor | contesting | Wolfspeed sued Navitas over GaN and SiC patents on 2026-07-07; Navitas vows vigorous defense |
| Chinese SiC entrants | gaining on | Adding price pressure on legacy SiC platforms, per analysis dated 2026-05-03 |
Questions people ask
- Is Wolfspeed profitable in 2026?
- No. Wolfspeed's Q3 FY26 results (reported May 5, 2026) showed revenue of $150.2M, down about 19% year over year, a GAAP net loss of roughly $119.9M, and gross margin around negative 27%. Q4 FY26 guidance of $140M-$160M still implies continued negative non-GAAP gross margin.
- Did Wolfspeed go bankrupt?
- Yes. Wolfspeed filed a prepackaged Chapter 11 case on June 30, 2025 in the Southern District of Texas and emerged September 29, 2025 after 91 days, cutting total debt roughly 70% from about $6.7B to $2B and lowering annual cash interest expense about 60%.
- Who is Wolfspeed's biggest competitor?
- STMicroelectronics, Infineon, onsemi, ROHM, and Fuji Electric/Toshiba are named as the top five SiC device suppliers competing with Wolfspeed as of February 2026. STMicroelectronics has built its own 200mm SiC wafer capacity in Italy, eroding Wolfspeed's former exclusivity as the only volume 200mm producer.
- Could AI replace Wolfspeed?
- No. Wolfspeed manufactures physical silicon carbide wafers and power devices, which AI software cannot fabricate or replace. AI is actually a growth driver: Wolfspeed's management stated its AI data-center power revenue grew about 50% sequentially in one quarter and 30% the next, as reported February 4, 2026.
- What happened with Wolfspeed and the CHIPS Act?
- Wolfspeed received $698.6M in CHIPS Act Section 48D cash tax refunds by December 4, 2025, with about $1B total expected, but the Trump administration proposed eliminating federal semiconductor grant funding around March 2026 after Commerce clawed back $7.4B in prior CHIPS R&D awards in August 2025.
- Why did Wolfspeed sue Navitas Semiconductor?
- On July 7, 2026, Wolfspeed filed a patent infringement lawsuit against Navitas Semiconductor in the District of Delaware, covering GaN FET and GeneSiC/SiCPAK product lines. Navitas said on July 18, 2026 it would defend vigorously, citing its own portfolio of over 300 patents.
Timeline
- 2026-07-07Filed patent infringement lawsuit against Navitas Semiconductor in Delaware
- 2026-06-09Launched new 3.3kV SiC power modules and low-RDS(ON) MOSFET line; GE Aerospace SiC collaboration announced
- 2026-06-01Launched Data Center Solutions Team in Silicon Valley for AI power infrastructure
- 2026-05-05Q3 FY26 revenue $150.2M, down ~19% YoY, GAAP net loss ~$119.9M, gross margin ~-27%
- 2026-03-25Refinanced $475.9M notes via $379M convertible notes plus $96.9M stock/warrants
- 2026-03-05Announced job cuts tied to $800M annualized breakeven revenue target
- 2025-12-04Received $698.6M CHIPS Act Section 48D cash tax refund
- 2025-09-29Emerged from Chapter 11 after 91 days, cutting total debt ~70%
- 2025-06-30Filed prepackaged Chapter 11 bankruptcy in Southern District of Texas
- 2024-11-11Announced plan to cut 20% of workforce with ~$200M annual savings target
Revision history
24 July 2026
First assessed. Losing its protection. The text above is fixed as of this date and is not edited afterwards.
In the same band
Sources
- Wolfspeed Successfully Completes Financial Restructuring (2025-09-29)
- Strategic Refinancing and New Equity Issuance (2026-03-25)
- Wolfspeed Wikipedia infobox
- Wolfspeed Q1 FY26 Earnings Release
- WOLF Q2 2026 Earnings Report (2026-02-03)
- Wolfspeed Q3 FY26 slides: debt cut 25%, AI revenue surges amid losses (2026-05-05)
- Wolfspeed Earnings Date and Reports 2026 (2026-07-17)
- Wolfspeed earnings missed by $5.48 (2026-02-04)
- Wolfspeed Plans Job Cuts (2026-03-05)
- Post-bankruptcy, Wolfspeed receives nearly $700M tax refund from CHIPS Act (2025-12-04)
- Wolfspeed laying off 20% of workforce (2024-11-11)
- Wolfspeed SEC EX-99.1 Disclosure Statement