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Date
Wednesday, Feb. 4, 2026, at 5 p.m. ET
Call participants
- Chief Executive Officer — Robert Feurle
- Chief Financial Officer — Gregg Lowe
- Vice President, Investor Relations — Tyler Gronbach
- Senior Executive (Finance) — Gregor Von Isom
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Takeaways
- Total revenue -- $168 million, consistent with the midpoint of the prior guidance range; power segment posted $118 million and materials segment posted $50 million.
- AI data center revenue -- Achieved 50% quarter-over-quarter growth, and data center revenue doubled over the last three quarters.
- Cash position -- Ended with $1.3 billion in cash and short-term investments, reflecting $700 million collected from a 48D cash tax refund during the quarter.
- Operating cash flow -- Successor period operating cash flow reported at negative $43 million.
- Adjusted EBITDA -- Negative $82 million for the quarter, including impacts from fresh start accounting and underutilization.
- Non-GAAP gross margin -- Negative 34%, affected by $39 million in fresh start accounting charges, a $60 million increase in intangible amortization, $14 million in inventory reserves, and $48 million of underutilization costs.
- Operating expenses (GAAP) -- $83 million, including approximately $24 million related to restructuring and position actions.
- Factory transition -- Completed shutdown of all 150-millimeter device production in Durham about a month ahead of schedule, fully shifting device manufacturing to 200-millimeter.
- Debt actions -- Used cash to reduce $175 million of first lien debt and converted approximately 1.5 million shares from the second lien convertible, decreasing debt by $18 million; steps projected to produce $25 million in annual interest savings.
- Working capital -- Improved by $89 million, excluding restructuring-related final payments.
- CapEx -- Reduced to $31 million, down substantially from approximately $400 million in the prior year’s comparable quarter.
- Share count -- Total shares outstanding now 45.1 million, following regulatory approval and related share issuances to Renesas and former shareholders.
- Quarterly revenue guidance -- Fiscal Q3 revenue guided between $140 million and $160 million, with expectations for negative gross margin to persist but operational improvements anticipated.
- Capital structure reset -- Fresh start accounting applied due to emergence from Chapter 11; recorded a $1.1 billion gain from emergence, reflecting $3.7 billion in debt relief offset by $2.6 billion in asset adjustments.
- Interest expense -- Annual cash interest expense reduced by approximately 60% versus pre-restructuring levels.
- Strategic focus -- Management highlighted four primary growth verticals: automotive, industrial energy (including AI data centers and grid), aerospace and defense, and materials. Partnership with Toyota announced to power onboard charging systems for BEVs.
- Technology milestone -- Produced a 300-millimeter single crystal silicon carbide wafer, while continuing to scale 200-millimeter manufacturing as a commercial standard.
- Operational efficiency -- Achieved a $5 million gross margin benefit from factory closure, with further benefits expected as 200-millimeter utilization increases.
- Regulatory clearance -- Completed CFIUS approval for equity allocation to Renesas as part of restructuring.
Summary
Wolfspeed (WOLF +1.18%) delivered results in line with previous revenue guidance, while comprehensive restructuring and the adoption of fresh start accounting significantly reshaped the company’s balance sheet and reporting. The transition to exclusive 200-millimeter manufacturing was completed ahead of schedule, and preparations advanced to leverage 300-millimeter wafer technology for future markets. Management cited strong growth in AI data center revenue and emergence of new industrial and energy applications as critical to diversifying sales beyond a currently soft EV-related demand environment. Strategic actions reduced both debt load and interest expenses, bolstered cash reserves, and established a leaner operational platform. Quarter over quarter, the company maintained a disciplined capital allocation approach, further reducing operating costs and capital expenditures despite negative gross margins and underutilization. Management expects negative gross margins to persist for another quarter but anticipates further incremental improvements as demand normalizes and operational streamlining continues.
- Fresh start accounting split results between predecessor and successor periods, limiting comparability of recent quarters.
- Net debt at quarter-end was approximately $600 million, supported by improved liquidity measures and liability management payments of $64 million in Q2.
- Management refrained from providing updated long-term financial targets but intends to share a revised plan within the fiscal year.
- The company broadened its go-to-market structure to focus on application-based sales across automotive, industrial energy, aerospace and defense, and materials sectors, bringing in experienced semiconductor sales and product leaders.
- Interest on first lien debt will step up around mid-calendar year 2026, with further balance sheet actions under consideration to address high capital costs.
Industry glossary
- 150-millimeter/200-millimeter/300-millimeter: Industry-standard diameters for semiconductor wafers; larger diameters enable increased production efficiency and scalability in device manufacturing.
- Fresh start accounting: A financial reporting method required after emergence from bankruptcy, mandating reassessment of asset and liability values based on fair value at the emergence date, rendering historical comparisons difficult.
- CFIUS: Committee on Foreign Investment in the United States; U.S. government inter-agency body reviewing national security implications of foreign investments in U.S. companies.
- 48D tax credit: Refers to the Advanced Manufacturing Production Credit established under Section 48D of the Internal Revenue Code for qualifying semiconductor manufacturing.
- BEV: Battery Electric Vehicle, a fully electric vehicle that does not use an internal combustion engine.
- Solid-state transformer (SST): Advanced transformer technology using semiconductor devices for higher efficiency, reduced size, and enhanced grid integration compared to conventional transformers.
Full Conference Call Transcript
Operator: Good afternoon. Thank you for standing by, and welcome to the Wolfspeed, Inc. Second Quarter Fiscal Year 2026 Earnings Call. At this time, all participants are in a listen-only mode. All lines have been placed on mute to prevent any background noise. After the speakers' remarks, there will be a question and answer session. If you would like to ask a question during this time, simply press star followed by one on your telephone keypad. If you would like to withdraw your question, please press star followed by the number two. We ask that you limit your questions to one question and one follow-up. Thank you. Please note today's call is being recorded.
And I would now like to pass the conference over to your first speaker today, Tyler Gronbach, Vice President of Investor Relations. Please go ahead.
Tyler Gronbach: Thank you, Operator. Good afternoon, everyone. Welcome to Wolfspeed's Second Quarter Fiscal 2026 Conference Call. Today, Wolfspeed's Chief Executive Officer, Robert Feurle, and Chief Financial Officer, Gregg Lowe, will report on the results for 2026. We would also encourage you to reference the slides that were published on the IR website today as we will be referring to them during the call today. Please note that we will be presenting non-GAAP financial results during today's call, which we believe provide useful information to our investors. Non-GAAP results are not in accordance with GAAP and may not be comparable to non-GAAP information provided by other companies.
Non-GAAP information should be considered as a supplement to and not a substitute for financial statements prepared in accordance with GAAP. Reconciliation to the most directly comparable GAAP measures is in our press release and posted to the Investor Relations section of our website, along with a historical summary of our other key metrics. Today's discussion includes forward-looking statements about our business outlook, and we may make other forward-looking statements during the call. Such forward-looking statements are subject to numerous risks and uncertainties. Our press release today and the SEC filings noted in the release mention important factors that could cause actual results to differ materially. Now I'll turn the call over to Robert.
Robert Feurle: Thank you, Tyler. Good afternoon, everyone. We appreciate you joining us on today's call. As you can see on slide three, we've continued to build solid momentum across the business since reporting our fiscal first quarter results. From achieving 50% quarter-over-quarter growth in AI data center revenue to producing a 300-millimeter silicon carbide wafer, securing key customer wins, and most recently, completing CFIUS clearance, we've been moving the business forward on multiple fronts. Under our refreshed leadership team, Wolfspeed has sharpened its operational discipline and strategic focus to ensure consistent execution.
Since I've joined the company, we've brought top-tier talent from across the semiconductor industry, people who recognize our unique position in the silicon carbide market, in helping us scale execution to better serve our customers and meet future market demand. As we outlined on our last call and cover on slide four, we're concentrating in a few key areas: strict financial discipline, advancing our technology leadership, and driving operational excellence. A central theme across these priorities is diversifying our revenue base, particularly in industrial and energy, including applications tied to AI-related power demand and grid modernization.
By continuing to support our broad base of automotive and other device and material customers, during Q2, we continue to fortify our sales, marketing, and product teams, adding experienced leaders with deep semiconductor knowledge and strong customer relationships. These hires are already helping us extend our reach into emerging power device opportunities. More on this later. And foremost, we are making solid progress in applying strict financial discipline across the organization. Following our financial restructuring, Wolfspeed has a stronger capital structure, net debt of approximately $600 million, annual cash interest expense lowered by approximately 60%, and strong liquidity, which includes approximately $700 million in 48D cash tax refunds we recently secured. Our cash position is $1.3 billion.
As we move forward, we are operating with strict financial discipline, aiming to maintain our balance sheet strength and stability through diligent execution. Consistent with this focus, our second priority is advancing technology leadership across the entire silicon carbide value chain. As you can see on slide five of our presentation, we've positioned the company to win in both devices and materials, leveraging our vertically integrated 200-millimeter footprint. Central to extending our technology leadership is our approach to deploying our R&D resources. We streamline R&D to focus exclusively on high-return programs in the highest growth markets. Our third priority centers on our commitment to driving operational excellence.
We're focused on differentiating through quality, customer responsiveness, time to market, and supply chain resilience. As shown on slide six of our presentation, the secure and scalable infrastructure remains a core differentiator for the company. As we execute our strategy and support growing customer demand, we remain focused on driving cost out of our footprint, processes, and products, even as we navigate underutilization headwinds. We officially completed the shutdown of all 150-millimeter device production over the Durham campus roughly a month ahead of schedule, transitioning our entire device platform to a higher efficiency 200-millimeter manufacturing. We continue to improve production efficiency and speed to optimize the earnings potential of the business.
The results of these efforts will be even more apparent when demand accelerates and we begin to increase fab utilization. As I mentioned earlier, a central theme across these three priorities is diversifying our revenue base in key verticals where I believe we can extend our leadership position, particularly in mid to high voltage applications. To accomplish this, we have organized our go-to-market strategy around four verticals that we believe will drive growth in our business in the near to mid-term: auto, industrial energy, aerospace and defense, and materials. And we're already seeing strong traction from these early efforts.
Our first vertical, automotive, remains a core market despite muted EV demand due to a mix of macro and structural factors, which include higher interest rates in the US and Europe, elimination of certain government incentives in the US, excess supply across the market, and intensifying competition globally, including China. Despite weaker near-term demand, our portfolio is aligned with OEMs that produce efficiency, range, and power density. A great example of this is our recently announced partnership with Toyota, one of the most respected quality-driven automakers in the world, to power the onboard charging systems for their BEVs.
Thanks to the efforts of our leadership team that's strengthening our relationship with the top global EV OEMs, we are now sampling across several key strategic programs. While these headwinds are creating a softer demand environment in the near term, silicon carbide remains a foundational technology for EV and other platforms. As highlighted on slide seven, silicon carbide continues to capture share in high voltage applications where performance, reliability, and system-level efficiency are critical, positioning it as the preferred technology over both silicon and GaN. In industrial and energy, our second vertical, we're leveraging our expertise to expand our reach, concentrating on AI data center power, grid storage, solid-state transformers, and broader grid modernization applications.
We have the expertise to extend our knowledge into the AI data center opportunity, which operates at significantly higher voltages than legacy data centers. As I mentioned, as voltages increase, we believe an increasingly larger portion of this addressable market will be better served with silicon carbide technology over legacy silicon-based solutions from grid to rack. As you can see on slides eight and nine of our presentation, Wolfspeed has strong momentum in this area. The AI revolution is fundamentally reshaping data center requirements and accelerating the shift from general-purpose facilities to purpose-built AI infrastructure that demands unprecedented power density and efficiency, playing directly into Wolfspeed's strength.
Our devices are already embedded in critical AI data center power systems, and we have doubled our data center revenue in the last three quarters, with 50% quarter-over-quarter growth from Q1 to Q2. Further, we are actively collaborating with a broad ecosystem of partners to support the industry transition from legacy 400-volt architectures to next-generation 800-volt AI platforms. Data center build-outs and widespread electrification have driven a surge in global energy demand. There are two key solutions to rising energy needs. The first is bringing online new energy sources like wind and solar.
We're already seeing silicon carbide adoption across wind and solar applications, as evidenced by our recently announced collaboration with Hope Wind to advance the next generation of wind power solutions. Turning to our third vertical, aerospace and defense, we believe there is a growing opportunity due to the tailwinds from defense modernization and electrification, including direct energy platforms. The US government has already recognized silicon carbide as strategically significant to national security, with both the Department of Defense and the Department of Energy designating it as a critical material. Additionally, the US government has emphasized the strategic importance of a secure domestic semiconductor supply chain for national security applications, and we believe Wolfspeed is best positioned to support those needs.
As you can see on slide 10, Wolfspeed is not only entrenched in established high voltage markets like 800-volt automotive, solar, and industrial, but we believe we are also positioned to lead in the next wave of emerging high-growth applications from AI data centers, grid modernization, to aerospace and heavy equipment. These opportunities demand material innovation that silicon carbide can deliver. Which brings us to our fourth vertical, materials. In materials, we're executing a clear two-pronged strategy: scale and strengthen 200-millimeter leadership for power devices today while advancing 300-millimeter capabilities to expand our long-term addressable opportunities. First, on 200-millimeter, material quality is increasingly critical as customers push into higher voltage, higher power density applications.
Substrate performance influences everything that matters downstream: device yield, reliability, and system efficiency. So our priority is delivering high-quality 200-millimeter wafers at commercial scale. Because Wolfspeed moved earlier to commercialize 200-millimeter in a scaled manufacturing environment, we believe we're best positioned to support not only our internal device roadmap but also merchant demand as the market continues to mature. Second, we are very proud to have recently produced a single crystal 300-millimeter silicon carbide wafer, a meaningful milestone that clearly demonstrates Wolfspeed's long-standing materials innovation. Importantly, our view of 300-millimeter is not that it replaces 200-millimeter for power devices in the near term, but it helps lay the groundwork for silicon carbide beyond power.
Different end markets can value material properties like thermal conductivity and optical performance. One example is optical-grade silicon for next-generation AR/VR systems. Their compact, lightweight design demands high brightness and effective thermal management. Taken together, this combination of industry-leading 200-millimeter materials for power today plus early validation of a 300-millimeter platform that can unlock emerging applications over time reinforces our belief that Wolfspeed can maintain and extend its leadership in silicon carbide material. Our efforts against our three strategic priorities, coupled with our vertical go-to-market strategy, enable Wolfspeed to capitalize on the incredible opportunity created by the transition from silicon to silicon carbide.
Now I'd like to turn it over to Gregg, who will walk through our financial performance for the quarter and provide more details on our path forward.
Gregg Lowe: Thank you, Robert, and good afternoon, everyone. I'll begin with a brief overview of our second quarter performance. Then I'll walk through the key financial impacts from our restructuring and the adoption of fresh start accounting, and finally, I will share our outlook for the fiscal third quarter. Starting with an update on some highlights of our second quarter, which we've illustrated on slide 12 of our presentation, are as follows. We continue to make progress implementing strict financial discipline, focusing on the aspects of the business within our control. The closure of the Durham 150-millimeter device fab one month ahead of schedule is a good example of that.
We upsized and collected the $700 million cash tax refund in Q2. We also improved $89 million in working capital management, excluding the headwind of final payments linked to our restructuring, and further reduced both operating expenses and CapEx investments. Now I'll review our quarterly financial results and speak to some of these updates in more detail, which you can see on slide 13 of our presentation. We generated $168 million of total revenue, in line with the midpoint of the guidance range we provided last quarter. Power revenue was $118 million, of which Mohawk Valley contributed approximately $75 million. This includes some of the last time buy shipments from the Durham Campus ahead of the closing I referenced earlier.
As Robert mentioned, the revenue tracking is a mix between a weaker automotive market and fast-growing mid to high voltage revenue. This is linked to the good traction in AI and data center space. Materials revenue was $50 million, driven largely by a tightening demand environment and increased competition in the market. Non-GAAP gross margin for the second quarter was negative 34%, which included several adverse effects. First of all, a $39 million drag related to fresh start accounting, $23 million of which is related to inventory step-ups, which we digested in the quarter, as well as a recurring $60 million increase related to amortization for intangible assets.
Furthermore, we recorded $14 million of costs related to specific inventory reserves, which further adversely affected the margins in Q2. The impact of underutilization in our manufacturing sites stood at approximately $48 million in Q2. As Robert noted, we completed the closure of the Durham 150-millimeter device set at the end of November, one month ahead of schedule, which improved gross margins by $5 million in the quarter. We'll continue to see benefits going forward as we focus on our 200-millimeter device manufacturing in Mohawk Valley. We've continued to reduce non-GAAP operating expenses, which are now $200 million lower on a run-rate basis versus last year.
At the same time, we continue to invest in R&D to reestablish and extend our technology leadership. The GAAP operating expenses totaled $83 million in the quarter, including approximately $24 million of restructuring and position-related items. Adjusted EBITDA for the second quarter was negative $82 million and included the impact of the previously discussed fresh start accounting implications as well as the underutilization. Adjusted EBITDA is largely unaffected by fresh start accounting impacts on a go-forward basis. Now turning to cash flow, which remains one of our top priorities. We are making strides in reducing our working capital by reducing inventory and receivables.
Our disciplined focus contributed approximately $90 million to ending cash, partially offset by the final liability management payments of $64 million we made in Q2. Our operating cash flow for Q2 successor period was negative $43 million. As you can see on slide 14, we have also continued to reduce CapEx, which was just $31 million in the second quarter, which were primarily linked to prior commitments. This is a substantial improvement from approximately $400 million of CapEx in the second quarter of last year. Looking ahead, we remain committed to a disciplined capital allocation strategy and drive CapEx further down over time as prior commitments start to fall off.
As announced earlier, we have received $700 million of 48D tax credit in the quarter. We have used a part of our cash to reduce $175 million of our first lien debt. In addition to retiring some of our first lien debt, approximately 1.5 million shares have been converted from our second lien convert, resulting in a debt reduction of approximately $18 million. Together, this forms a first step to further improve our balance sheet post-emergence and will deliver $25 million in annual interest savings. We ended the quarter with $1.3 billion in cash and short-term investments. This stronger liquidity position enables us to pursue our strategic priorities with confidence.
We have made significant progress in addressing our capital structure thus far, and we recognize that we have further work to do in this area. We believe our results in Q2 reflect meaningful progress in improving our operations, enhancing capacity, and improving our earnings potential. But there is still work ahead of us to improve further factory utilization as one of the main levers. Next, I'll review the impacts on the financials as a result of the adoption of fresh start accounting. I would also encourage you to reference our press release, slides 15 and 16 of our presentation, and Form 10-Q for additional details on this topic.
As you know, over the past year, we took important steps to strengthen our capital structure, positioning Wolfspeed to emerge from our restructuring on firmer financial footing. As part of these efforts, it's required that we adopt fresh start accounting, which marks a true reset for Wolfspeed. With fresh start accounting, our income statement for 2026 is split between the predecessor period ending on 09/29/2025, which reflects activity up to and including our emergence from Chapter 11, and a successor period beginning 09/30/2025, which reflects our results after emergence. We were able to emerge from Chapter 11 on the first day of the fiscal quarter, so our successor period effectively includes all operating income for the quarter.
Unless I say otherwise, the details that I will outline in a moment pertain to the successor period only. Because fresh start accounting requires that fair values are estimated for a company's assets, liabilities, and equity as of the date of emergence, certain pre- and post-emergence financial and operating results will not be comparable. All adjustments related to fresh start accounting are non-cash. As part of the fresh start process, we remeasure our assets and liabilities to fair value anchored to the court-approved enterprise value at the midpoint of $2.6 billion. Our new debt, measured at fair value, replaced the legacy debt.
We also recorded a $1.1 billion gain from emergence, which reflects approximately $3.7 billion in debt forgiveness, offset by approximately $2.6 billion of net adjustments to assets, primarily property, plant, and equipment. Looking ahead, we expect a net reduction of approximately $30 million per quarter in depreciation and amortization compared to pre-emergence Wolfspeed, due to the lower property, plant, and equipment on the balance sheet partially offset by the step-up in intangibles. The application of fresh start accounting also results in fair value adjustments to step up work in progress and finished goods and step downs in our raw materials.
The $23 million step-up related to work in progress and finished goods was recognized in COGS during the second quarter, resulting in a one-time headwind, as I mentioned earlier in my gross margin comments. The favorability from the $70 million step-down related to raw materials will only be realized in the P&L over the next several quarters. While fresh start accounting limits comparison across the predecessor and successor period, I want to reiterate that adjusted EBITDA is largely unaffected by fresh start accounting impacts, except for this quarter. Lastly, we received final clearance from CFIUS to allocate equity shares to Renesas in connection with our previously approved restructuring agreement.
This regulatory approval enabled the release of approximately 16.85 million shares of new common stock to Renesas. In addition, we completed the distribution of the final two equity recovery representing approximately 871,000 shares to our legacy prepetition shareholders. Our total shares outstanding are now 45.1 million. Finally, let's turn to our outlook on slide 17 of our presentation. While the automotive end market remains volatile in the near term, we are encouraged by the growing momentum in key strategic areas such as AI data centers and other industrial and energy applications. These emerging opportunities represent meaningful long-term growth drivers, but they will take time to scale and offset the continued softness in EVs.
During 2026, we expect revenues between $140 million and $160 million. The decline is driven primarily by accelerated customer purchases in our first fiscal quarter, as certain customers build up inventory by placing orders from the Durham fab prior to its planned closure, certain customers pursuing second sourcing of products during Wolfspeed, and weaker EV demand. The company expects OpEx to be flat to slightly down sequentially as we remain confident in controlling operating costs through actions already implemented. Lastly, due to the ongoing fresh start accounting impacts, Wolfspeed will not yet provide a numeric gross margin guide but does expect further quarter-over-quarter improvements driven by ongoing operational actions. However, gross margin is expected to remain negative in fiscal Q3.
As we mentioned on last quarter's call, we expect to provide an update on our long-range plan in 2026, where we will give an update on the long-term financial targets and capital allocation plans. With that, I'll return the call back over to Robert.
Robert Feurle: Thank you, Gregg. Across the business, our team is working tirelessly to drive progress against our strategic priorities and to mobilize our scale and technology advantages. All of these efforts are intended to strengthen our ability to capture the next wave of growth in silicon carbide. While the near-term demand picture remains dynamic, two trends remain clear. First, electrification is happening across new markets every day. Second, voltages will continue to increase, necessitating more power density and increased energy efficiency. We are building a stronger, more resilient Wolfspeed. With an improved financial foundation, experienced leadership team, and our vertically integrated platform, we are strategically positioned to drive long-term growth and value as we define the future of silicon carbide technology.
Operator, we are now ready to take questions.
Operator: Thank you. We will now begin the Q&A session. If you'd like to remove your question, press star followed by 2. Again, to ask a question, press star 1. And as a reminder, if you are using a speakerphone, please remember to pick up your handset before asking a question. And during the Q&A session, we ask that you please limit your questions to one question and one follow-up. The first question comes from the line of Brian Lee with Goldman Sachs. You may proceed.
Brian Lee: Hey, guys. Good afternoon. Thanks for the updates here. Appreciate the slide deck as well. A lot of new information. So maybe the first question, just thinking about the strategy, you mentioned the diversification away from EVs, you know, key segments like AI, grid modernization, AI data centers. Maybe just walk through a little bit of how that's gonna work and then what it requires for you to change how you go to market and maybe the timeline involved. Then I had a follow-up.
Robert Feurle: Yeah. Thanks, Brian. At the end of the day, look, what we're doing is we're pretty much looking to pivot away from being a one-trick pony focused on EVs. This means here, when I started, I kind of turned the organization, the go-to-market organization, to be application-oriented, yeah, and from coming from a product or a setup, which means they really need to know automotive, industrial energy, and aerospace as the defense and pretty much take these application requirements into what does it take to build these products. And I think what you can see here with our progress quarter over quarter in AI data centers, that revenue growth here is really starting to pay off.
In addition to that, it's also to get the right sales organization and the right channel strategy in place. Right? So this means a clear tiering of what are the key accounts in this respect application segment. But, also, especially, IE segments, these are it's a large number of customers. So really getting a channel strategy around distribution and specifically for the US, a rep structure in place. This is all in progress as we brought in some really good new talent from the outside from other big semiconductor companies.
Brian Lee: Great. That's helpful color. And then maybe just a follow-up on the financials and the balance sheet. You know, a lot's changed, and maybe more is gonna change. But could you guys remind us, is there any expected interest rate step-up on the first lien this year or next year? And then I think up, you know, until recently, the 2031 converts were sort of in the money, but are you contemplating doing any sort of additional financing strategic maneuvers, with respect to the, you know, the first lien and the convert, just given, you know, the equity and where it's been trading? Thank you.
Gregor Von Isom: Gregor, maybe, Albert, I can take that one. Yeah. Yeah. So you're right. So we took, obviously, first big steps with emerging from Chapter 11 and restructuring the balance sheet in that process. And then we focused very much on collecting the cash from 48D and using it first pay down of the L1s, but that's just the first step. Then we are very much aware of the situation and opportunity potential in the convert area, which we're deeply looking into at the moment alongside other options that we have. So as I mentioned in the script earlier, we realize there's more work to be done. And over the next period, we will be very actively looking at that.
Very concretely, the interest rate will step up around the middle of calendar year 2026. And at that moment, also, some of the make-whole premium stepped down. So in our view, that is definitely a very high cost of capital there and something to be looked at. For the rest, we continue to focus a lot on the strict financial discipline. So you've seen we focus a lot on getting more cash out to working capital. I hope to make some further improvements there as well. And we believe that with the long maturity and the strong cash balance, we do have the time to look into this refinancing topic in a good way.
Brian Lee: Appreciate the color. Thank you.
Operator: The next question comes from the line of Christopher Rolland with Susquehanna. Christopher, your line is now open.
Christopher Rolland: Excellent. Thanks, guys. Appreciate the question. So I also wanted to dig in some of these other opportunities, particularly AI data center from a power perspective, it's pretty interesting right now. If you guys can talk about kind of what your AI data center revenue consists of today that was up 50% quarter over quarter. And then going forward, kind of your top sockets. Is it gonna be SSTs or in the power supply or we're hearing even potentially for substrates? Would love to know about your competitive position there and how big this thing could be for you guys eventually.
Robert Feurle: Yeah. Thanks, Chris. I mean, really, very, very good questions. Let me kind of take them one step at a time. I think so what's happening in the AI data center space, especially on the indirect side, is that today, you're round about the 100 kilowatt-ish per rack, yeah? Kind of moving in two years or so to, like, 600 kilowatt per rack into, like, a mega rack, like, the 2029, 2030 timeframe. This means you have to go figure out how do you power these racks, and how do you get the energy from the energy generation to that rack?
And I think this is where exactly Wolfspeed can play to the full advantages coming from the energy generation, which is pretty much really going into the in from the kilowatts as stepping that voltage down. And then as more and more renewables come into the mix, you need also a lot of energy storage systems in between to kind of buffer glitches and these types of things. So that's kind of the next portion that we are focused on. Then, of course, you need to get this energy into the data center with, you know, with transformers. Right? And there is a transition happening from traditional transformers to solid-state transformers.
Also, silicon carbide is the perfect solution, I would say. That transition is starting to happen here. So we're really playing in terms of energy generation, energy storage system, solid-state transformers, but then also you look into in the data center, there is the UPS. So the uninterruptible power supply is a big, big application. And then, again, 40% of the energy in the data center is the cooling devices. Another way to say, hey, can you have built these systems more effectively? You see, this is not just one application. These are multiple applications spanning across the whole power range.
I think there's something we're very actively working on, and we get multiple excellent customer engagements and partner engagements on that side. We announced a new package just recently, kind of the side cooling package here, really looking new to build specific products for that application. Coming to your questions on the substrate. So what we are seeing is that silicon carbide from a materials perspective has unique properties. And one unique property is thermal conductivity. Right? I mean, it is one of the best materials for thermal conductance and has great optical properties.
And I think here, there's clear interest to explore now to see is there a way to use this thermal conductor in some type of improvement for the system architecture. This is why we've also kind of pioneered this space on developing a single crystal 300-millimeter wafer here. And we have very early ongoing discussions with key partners in the industry to say, hey, with us now being able to produce really large-scale single crystal silicon carbide here, kind of what could be a potential for potential solution.
I mean, this is something where I cannot give you an exact timeline on revenue coming into the company, but this is something where we, again, have very good interest and various partners in the industry.
Christopher Rolland: Excellent. Sounds very exciting. My second question is around just kind of stability moving forward and then, you know, eventually growth. And I think you guys talked about the fiscal first half customer purchases from term transition. Obviously, it sounds like a pull-in of orders. Where are we in digesting those orders and alleviating that overhang? And when do you think you have confidence in the bottom and then building growth on top of that bottom again? How should we think about these different dynamics?
Robert Feurle: Yeah. I think, look, there are various topics playing into this. The one is what's clearly the kind of the transition from 150-millimeter devices to 200-millimeter devices. In such a fab transition, you always have customer purchasing more for end-of-life in the parts. Right? I think that end-of-life is done. Right? The 150-millimeter factory is shut down. We took the cost out of the company, also the running cost out of the company. And I believe here with that step, also, we are really the first company in the Western world who's completely only manufacturing the 200-millimeter devices. And then, of course, it comes to this question of demand. Right?
And I think we talked about this also in the earnings call. It's a very dynamic environment, especially around the EV side here. And it's really hard to predict in terms of visibility of kind of how that will develop. In the long run, I think, look, the electrification of the drivetrain is continuing. Right? I mean, if you see, I just recently saw a market research forecast. Right? Slightly over 90 million cars getting sold, around about 20% of these cars being, you know, EVs. Yeah? And that portion of EVs is just gonna grow, right, towards the end of the decade.
I saw some forecasting around about 50% of the cars being sold at the end of the decade are EVs. Right? And then in these EVs, you have kind of two dominant voltages for the batteries. The one is an 800-volt platform. The other one is a 400-volt platform. And for the 800-volt platform, I mean, the primary solution is to do the traction inverter with silicon carbide. So I think the overall trend long-term of adopting silicon carbide using this in EVs, and also, again, we talked about the AI. There's an opportunity. It's real. Right? Can I tell you exactly kind of short-term what will happen? No. All the macroeconomic factors are playing into this.
Christopher Rolland: Excellent. Thank you for that color. Appreciate it.
Operator: The next question comes from the line of Jed Dorsheimer with William Blair.
Jed Dorsheimer: Hey. Thanks. Thanks for taking my questions, guys. I guess the first one for you, Gregg. Just a follow-up to Brian's previous question. It would seem like, you know, dealing with the L1s in some capacity might be the lowest hanging fruit. So I'm just curious, have you kind of looked at what the potential savings and interest could be? I'm just wondering in terms of, you know, as you explore different options, are you talking about sort of a $50 million to $100 million annual savings? Are you talking $150 million? Like, what is the scope of that? And then I have a follow-up.
Gregor Von Isom: Yeah. I think it depends a little bit on how we would execute some portion of the refinancing of the L1. As said, there are several options, and it depends a bit on what is available given the specifics and nature of just emerging from Chapter 11. So we are very actively looking at that. You know our cost of capital is right now very high, and there will be a further step-up. So that is something that we are looking for to address head-on. I think the exact amount of interest reduction really depends on the instrument we will use and the size of the first step we can make.
And I think it's a bit premature to indicate exactly how big that would be, but I'm looking for making, let's say, a material first step there, but it's probably not gonna be in a one-go transaction.
Jed Dorsheimer: If that helps. Thank you.
Jed Dorsheimer: It does. Yeah. I mean, I think you addressed sort of, you know, scope. I guess the second question would be for you, Robert. With respect to Siler City and, you know, just the I know you can't guide or, you know, it's premature to frame around the 300-millimeter for virtual lens opportunities. But that would seemingly be the fastest way to fill that fab. I'm just wondering, is there any framework to think about how to timing of utilization should the AR/VR type opportunity ramp? How should we be thinking about that?
Robert Feurle: Look. I mean, at the end of the day, we're always adjusting, you know, kind of the production to the demand. Right? And we're gonna be scaling this up as demand, you know, picks up. And at the end of the day, this is really dependent on customer adoption of the technology. Right? Yeah. And then, of course, we are ready to scale. I mean, the good thing is here with Wolfspeed here, we got really the facilities. We got the CapEx, which was spent here pretty much in both the device step-up in Mohawk Valley and, as you said, on the materials side here, we got, you know, capacity in Durham, but also in Siler City. Yeah.
The factories are built. Right? So this means, yeah, at the end of the day, it is really now looking to how do we get customers, how do we get pretty much new applications, yeah, to drive that growth. This is something we completely have in our end? No. Because we need to make the customer need to make an architectural choice. Right? Then, of course, we need to go we get this qualified and ramped. And this is why I think, you know, diversifying here the customer base, the go-to-market, and also how we think about understanding the end application is such an important piece of getting Wolfspeed here into the right position.
Jed Dorsheimer: Great. Thanks, guys.
Operator: The next question comes from the line of Samik Chatterjee with JPMorgan. You may proceed.
Joe Cardoso: Hi. Good afternoon, and thanks for the question. This is Joe Cardoso on for Samik. Maybe for my first, I just wanted to follow-up on the EV comments you made, but maybe less on the market itself and just more curious we should think about Wolfspeed's positioning in the market today. Particularly following a somewhat turbulent twelve months or so, like, how but also kind of on the heels of the recent announcements like the one you mentioned with Toyota. Just curious what you're seeing across customer conversations and dialogues and any incremental color you can provide on that front. And then I have a follow-up.
Robert Feurle: Sure. I mean, so look. Again, we've been announced the partnership with Toyota, right, which pretty much showing we're diversifying here also globally. And, clearly, Toyota is a, you know, very well-known brand for quality. So I think, you know, this is also a testament to the great cooperation between the two companies. Yeah. And then, of course, we're really here looking into, yeah, diversifying here globally, but also in terms of within the EV makers. As I said, right, I mean, with the emergence of these 800-volt battery platforms, it's really the perfect fit for, yeah, the silicon carbide in the traction inverter. And this is what we're really, really focused on.
A lot of them are valuing our vertical integration. Right? I mean, if you saw also what happened recently around, you know, where else, obviously, still kind of what happened last year also around Gallium. Yeah. And pretty much all of a sudden, certain countries restricted these materials from being exported. Right? A lot of customers are building okay Wolfspeed. You have manufacturing capabilities. You have the capacity. And you have this right here in the United States. Right? I mean, if you see kind of our footprint, it's pretty much first of all, very lean. Yeah? But it's also something which we have under our control.
That is pretty much between North Carolina, Mohawk Valley, and our device and module site in Arkansas. Right? I mean, we can really move very fast. We have this all under one roof. So this is really something where a lot of customers like it. And we have, again, here a lot of, you know, sampling ongoing with various key customers here for programs.
Operator: That concludes today's Q&A. I would now like to pass the call back for any closing remarks.
Robert Feurle: Thanks, everybody, for joining us on the call today here. Thank you.
Operator: Thank you for your participation, and enjoy the rest of your day.
