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Q2 FY2026 · Earnings Call TranscriptJuly 30, 2026

Christian Ludwig

Ladies and gentlemen, this is Christian Ludwig. A warm welcome on my side to AIXTRON's Q2 2026 conference call.

I am very sorry for the technical delays that we had experienced and that had to keep you waiting. We had some major issues with our external provider.

We're working on this, next time hopefully we will have a smooth communication. With me in the room today is our CEO, Dr.

Felix Grawert, and our CFO, Dr. Christian Danninger, who will guide you through today's presentation and then take your questions.

This call is being recorded by AIXTRON and is considered copyright material. As such, it cannot be recorded or rebroadcast without permission.

Your participation in this call implies your consent to the recording. Please take note of the disclaimer that you find on page one of the presentation document as it applies throughout the conference call.

This call is not being broadcast via webcast or any other medium. However, we will make a transcript available on our website after the call.

I would now like to hand you over to our CEO for his opening remarks. Felix, the floor is yours.

Felix Grawert

Thank you, Christian. Let me also welcome you to our Q2 2026 results presentation.

Again, also from my side, from the board, apologies for the delay with our external provider. Thanks a lot for everybody who kept waiting.

I will start now with an overview of the highlights of the quarter and then hand over to our CFO, Christian, for more details on our financial figures. Finally, I will give you an update on the development of our business and guidance.

Let me start by giving you an update on the key business developments of the second quarter on slide two. The key messages are: we've received strong new orders of €215 million, predominantly driven by optoelectronics.

Revenues came out at €115 million, in line with our guidance for the quarter, reflecting the ongoing ramp of photonics business and coming out of the trough in power electronics in Q1. We also generated a very strong cash flow.

Operating cash flow reached €119 million, and free cash flow came in at €114 million. This was predominantly driven by higher customer advance payments, reflecting the strong order momentum and supporting the upcoming production ramp.

Despite the soft start into the year, we are fully on track to achieve the full-year guidance with revenues of €560 million, plus/minus €30 [million?] .

We had a soft Q1 with revenues of €59 million. We achieved €115 million in Q2.

We plan to further increase output in Q3 to €180, plus/minus €20 [million?] .

We target a very strong Q4 with a further increase in output beyond the Q3 level. As you can see, we are ramping up our production with a steep ramp rate and significant increase of output every quarter of this year to serve the growing demand in optoelectronics.

Finally, construction of our new site in Malaysia has started and is fully on track. Christian will now provide you a detailed look at our financials on the following pages before I take over again.

Christian.

Christian Danninger

Thanks, Felix, and hello to all. Let me start with the highlights of our revenue development on slide four.

Q2 revenues marked the next step in our planned production ramp, increasing to €115 million from €59 million in Q1. This was fully in line with our quarterly guidance of €110, plus/minus €10 million.

Compared with the prior-year quarter, revenues were 16% lower. For the first half, revenues amounted to €174 million.

The revenue mix already shows the growing importance of optoelectronics. 54% of the equipment revenues came from opto, 23% from LED and Micro LED, 22% from GaN and SiC power, and 2% from R&D tools.

Our after-sales business contributed €52 million and remained stable in absolute terms year-over-year. As a result, its share of group revenues increased to 30% from 21% a year ago.

Now let's take a look at the financial KPIs of the income statement on slide five. Gross profit in Q2 was €47 million, corresponding to a gross margin of 41%, unchanged from Q2 last year.

This demonstrates a solid margin performance as volumes began to recover. For the first half, gross profit was €58 million and gross margin was 33%, 3 percentage points below the prior-year period.

The H1 margin reflects the lower production volume, particularly in Q1, as well as a mid-single-digit euro million one-off expense related to the personnel reduction in operations. Operating expenses in Q2 were stable year-over-year at €32 million.

Higher R&D spending was offset mainly by increased R&D grants and significantly lower FX losses. The rise in R&D expenses primarily reflects higher depreciation and material costs as we continue to invest in our technology roadmap.

For the first six months, operating expenses were €65 million, up 3% year-over-year. EBIT in Q2 was €15 million, equivalent to an EBIT margin of 13%.

This represents a clear turnaround from Q1 and reflects the higher revenue level and improved operating leverage. For the first half, EBIT was negative €8 million, corresponding to an EBIT margin of negative 4%, mainly due to low Q1 volume and the one-off expense already mentioned.

Let me now turn to the key balance sheet and cash flow indicators on slide six. Working capital decreased by €184 million compared with the end of 2025.

This was primarily driven by strong customer advance payments and the conversion of receivables from last year's fourth quarter revenues into cash. Trade receivables declined to €81 million at the end of June from €131 million at year-end.

Strong order momentum resulted in a substantial increase in customer advance payments. The composition of current orders and individually agreed payment terms also provided a modest additional benefit.

At the end of June, advance payments stood at €197 million, more than €150 million above year-end 2025. They represented around 43% of the equipment order backlog and provide meaningful funding for the upcoming production ramp.

At the same time, inventories increased to €318 million from €284 million at the year-end, mainly reflecting higher work in progress for shipments scheduled in the coming quarters. Trade payables rose to €49 million from €34 million as purchasing activity increased to support the ramp.

Both developments are consistent with the planned increase in output in the second half. Overall, operating cash flow reached €173 million in the first half, an increase of almost €90 million from €85 million in the prior-year period.

In Q2 alone, operating cash flow was €119 million. The key driver was the strong increase in customer advance payments, which supports the financing of the production ramp.

Free cash flow was correspondingly strong at €162 million in the first half compared with €74 million a year ago. In Q2 alone, free cash flow amounted to €114 million.

CapEx in the first half was close to €11 million. For the full year, we expect CapEx of around €55 million, comprising our baseline investments and approximately two-thirds of the announced €40 million investment in the Malaysia expansion.

The process to sell our site in Italy is ongoing. Our liquidity, comprising cash, cash equivalents, and other current financial assets, increased to €816 million as of June 30, 2026.

After deducting the liability component of the convertible bond, net financial assets amounted to €460 million compared with €222 million at year-end 2025. Our equity ratio remained strong at 61% despite the increase in total assets following the bond issue.

With that, let me hand you back over to Felix.

Felix Grawert

Thank you, Christian. I would like to continue with an update on key trends in our different markets.

Overall, the picture in Q2 was very much in line what we described at the end of Q1. Optoelectronics remains very dynamic and is currently the clear growth driver for AIXTRON, while the power electronics and LED/Micro LED markets remain in different phases of recovery.

I will start with optoelectronics. Momentum remained exceptionally strong in the second quarter.

After the clear inflection point we saw in Q1, the market continued to accelerate in Q2, driven by strong demand from AI data center applications. In Q2 alone, optoelectronics accounted for 75% of equipment orders, making it by far the most important contributor to our order intake.

Based on our current visibility, we expect order momentum in optoelectronics to remain at very high level in the second half of the year. The key driver remains the ongoing architectural shift in AI data centers from copper-based connections and lower-speed optical links towards high-speed optical connectivity in 800 gig and eventually 1.6T and beyond.

This transition requires a significant increase in the number and performance of optical links and therefore in the number of advanced lasers needed. In the near term, demand continues to be driven by indium phosphide-based EMLs and CW lasers for data center applications.

At the same time, customers are already working on photonic integrated circuits, PICs, as the next step in technology roadmap. Importantly, the current investment wave is no longer limited to a few large players.

We now see leading laser suppliers worldwide committing to capacity expansions, and the trend is also extending to smaller laser manufacturers. Based on the current pipeline and customer discussions, we expect this investment wave to remain at very high levels over the coming quarters.

This gives us strong visibility and supports our confidence in sustained momentum in optoelectronics well into 2027. As discussed previously, our G10-ASP platform is benefiting strongly from this trend.

Customers are increasingly standardizing on this AIXTRON platform for advanced photonic devices. The reason is that yield, uniformity, and cost of ownership are critical in this application.

Many systems are initially configured for 4-inch wafers, but are already prepared for a transition to 6-inch, giving customers the flexibility as the technology and supply chain evolves. Let me keep it therefore short on SiC and GaN power electronics, as there's not much new compared to the last quarter.

In SiC, the installed base of equipment at customers remains underutilized, and customers remain cautious about new capacity investments. At the same time, the underlying demand for silicon carbide chips continues to grow, and we are seeing utilization rates gradually increase at our key customers.

When this leads to new tool orders is difficult to predict at the current point in time. Also in gallium nitride, demand for power equipment remains moderate.

Also here, customer utilization is gradually increasing. However, it remains too early to determine when this will translate into additional equipment demand.

Strategically, our conviction around GaN remains unchanged. Recent announcements and discussions around Computex and PCIM have reinforced our view that gallium nitride has a strong opportunity to win designs in AI data centers, particularly for 800-volt DC-to-DC conversion.

Over time, we also see the potential for GaN to move beyond the 48-volt level and into lower-voltage point-of-load applications. In such architectures, GaN could replace multiple stages of silicon MOSFET-based power conversion, enabling more compact and efficient power delivery for AI infrastructure.

AIXTRON remains very well positioned in GaN. Yet, we have not seen signals for the inflection point for significant new order momentum.

Finally, a brief comment on LED and Micro LED. Both applications remained soft in the second quarter.

We shipped systems for red, orange, yellow mini LED in previous quarters, and these systems are currently being installed and ramped up. However, the broader investment environment for mini LEDs remains limited as of today.

For Micro LED, most of the demand we see today is driven by AR glasses. We continue to believe in the long-term potential of this technology.

We see more and more focus of end customers on innovative products such as the AI glasses of Meta Ray-Ban, which may at some point generate stronger customer pull. The exact timing for such order uptick remains unclear as of today, but it may materialize as early as 2027.

Let me now move to our footprint expansion. Our new site in Malaysia is set to become an important element of our global footprint and represents a key step in strengthening our manufacturing base.

With the new facility in Penang, we are extending our presence in one of the world's leading semiconductor ecosystems. The project is running fully as planned, and groundwork have already started.

With that, let me now move on to our guidance. We confirm our increased guidance for 2026 as published in mid-April.

We expect revenues to come in at €560 million in a range of plus/minus €30 [million?] .

We expect a gross margin of about 42% and an EBIT margin between 17% and 20%. The guidance for the gross margin and EBIT margin includes one-off expenses in the mid-single-digit euro million range related to the personnel reduction in operations.

The measures will lead to annualized savings of a similar magnitude in the future. For Q3 2026, we expect revenues of €180 million, plus/minus €20 [million?]

. For Q4 2026, we then target a further increase in output, corresponding to the steep quarter-over-quarter ramp that characterizes our fiscal year 2026.

We continue to monitor geopolitical developments closely, particularly in the Middle East. This includes potential impacts on energy prices, supply chains, financial markets, and investment and demand behavior.

At present, we do not see a significant impact on our business, but we will respond appropriately if the situation changes. With that, I'll pass it back to Christian before we take your questions.

Christian Ludwig

Thanks, Felix. Thank you, Christian.

Operator, we are now ready to take questions. Ladies and

Operator

gentlemen, if you would like to ask a question, please press star, nine, and pound key on your telephone keypad. If you would like to revoke your question, press star, three, and pound key.

You can also use the dial-in function in the webcast and raise your hand if you would like to ask a question by phone. I repeat: star, nine, and pound key.

Christian Ludwig

We have the first question in line. I think we can start with the first, please.

Next

Operator

question is from Adithya Metuku from HSBC. The floor is yours.

Adithya Metuku

Thank you, guys. Thank you for letting me on.

Two questions, please. Firstly, just on optoelectronics demand, you talked about demand still accelerating.

We've also seen similar commentary from your customers. I just wondered, based on your discussions, when do you see the supply/demand coming into balance in the indium phosphide laser landscape?

That's the first question, and I've got a follow-up.

Felix Grawert

Let me question back. What do you mean with demand and supply coming into a balance?

I'm not sure

Adithya Metuku

I

Felix Grawert

get what's behind the question.

Adithya Metuku

If you look at your customers, if you take Lumentum's comments, they made some commentary around being 30% below demand, and they don't think they will be able to meet the demand that's out there in 2027. I just wondered, and that's clearly driving their investments, which you're benefiting from.

When do you see their supply, which is tied to these machines you're producing, coming in balance with the demand that they're seeing from their customers, if that makes sense? Is it 2028?

Is it 2029? What are your customers telling you?

Felix Grawert

Thanks a lot. I cannot comment on individual customers, and also for us, it is difficult to assess the situation, the demand/supply situation that our customers are in, because I'm unable to see the pipeline, the demand pipeline, that's behind my customers, yeah?

Please understand I cannot comment on that particular aspect. What I can comment on is on the AIXTRON side of things.

What we are seeing here is very clear that we see that the demand for laser, for tools for laser, for the optoelectronics, is a very broad market momentum. It's not only two or three players, but rather we see a diversified set of, I would say almost 15 laser companies.

Many, of course, the big players from Europe and the US, very big players also from Taiwan and from Japan, yeah, but also we see a very strong momentum from China, yeah? I think let's recall, we all know China has a very strong optoelectronics ecosystem.

This whole industry, I think, almost at a global breadth, very well diversified, yeah, as I said, about 15 players, we just analyzed that about 80% of our order intake is taking up quite a strong momentum. The customers are communicating to us also their forecast, when they would like to have the tools for their individual ramps.

That typically depends. They have some space left in existing factories.

Customers start building new fab construction projects, yeah? Then whatever, if a customer fab is scheduled to get online, let's say, in the second quarter of next year, then we make sure that we reserve for them slots so that in second or third quarter of next year, we can serve them.

We see here a broad and a continued long momentum ramping up and really building the capacity base that is needed, yeah? This is what we see to describe the demand behavior on the customer side.

Maybe that's a bit helpful.

Adithya Metuku

Yes, of course. Thank you.

Just as a follow-up, I had a bit of a technical question. Where my understanding from recent developments is that when you go to CPOs or any other architectures that use an external laser source, you have a significant amount of losses before the light is actually fed into the fiber.

That means there is a need for a lot of amplification lasers, etc. The question is, for a given optical link bandwidth, if you were to move from a pluggable to a CPO with an external laser source, do you see a significant increase in the indium phosphide die or die size that is needed?

For example, if I take a 1 Tbps transceiver and substitute that with a 1 Tbps CPO, do you need more indium phosphide die and more AIXTRON machines for that transition?

Felix Grawert

Without going too deep into the technical details, and also every of the customers has a different architecture behind it, what we see is generally that with increasing speed, we see increasing die size and increasing wafer capacity needed, yeah? That comes simply as the speed goes up, a modulation gets more lossy, and more die size is needed.

The overall trend, higher speed rates, is driving also further wafer demand.

Adithya Metuku

Got it. Thank you.

The next question

Operator

is from Mr. Martin Marandon-Carlhian from ODDO BHF.

The floor is yours, Martin.

Martin Marandon-Carlhian

Hi, and thanks for taking the question. My first one is on the 2026 guidance, just a clarification there.

There was no upgrade to the guidance, but the order intake is very strong. I assume that a lot of orders are going to 2027.

Would you say that the bottleneck for this year, it's more about execution than anything else? That's my first question.

Felix Grawert

That's a fair remark, yeah? We feel comfortable in hitting the guidance.

As you see, and as we have outlined, we are steepening and ramping up our output quarter-over-quarter. You saw the around €60 [million?]

in the first quarter, €115 [million?] in the second, €180 [million?]

—always referring to the midpoint, right?—€180 [million?] for the third, and then if you just do the math, around 200, a little over €200 [million?]

for the third quarter. We're not limited by orders.

As you see that also in the pie chart we had in the deck, yeah, but we are rather now really doing everything to execute, yeah, to make sure that with this laser boom that has just started early in March, yeah, just not even three, four months out, to work to ramp up our own capacity, to work very closely with our suppliers. We've very good partners over the years.

Of course, the laser machines need some different parts than the power machines, to ramp up the supply chain, yeah? Hence, you see this steep quarter-over-quarter increase.

That's really for the year the limiting factor. It's not the orders.

I think the good news is we are quite able quite well to satisfy our customers' needs, yeah, to get the machines out as they need it. You can imagine such a steep ramp from 60 to 200, 3x, yeah, within a year in terms of output, that's quite some work behind it.

Martin Marandon-Carlhian

Helpful. A second question is on the photonics orders.

You mentioned that the momentum is very strong and will continue to be very strong. Looking at the run rate today, it implies that sales could be around €800 million next year.

Do you think we are kind of at a high plateau in terms of orders? Do you think we'll go higher?

Or should we expect a little bit of volatility quarter-to-quarter for this orders?

Felix Grawert

Good question. Honestly, I think around €200 [million?]

, what we have seen now as an order intake, is for the next quarters as much as we have visibility, what we are looking at, yeah? We think that's a fair assumption to see, yeah?

Then, of course, with a bit of a delay time, yeah, you know the lead times for equipment shipments, we will then see that also translate into revenues. I think your guess is approximately right.

Martin Marandon-Carlhian

The last one, if I may, on GaN adoption in data centers, I understand that it's not in the order intake yet. What's the discussion with customers are looking like at the moment?

Is it normal that we don't see it yet, or do you think the timeline for mass adoption have somewhat moved? I think

Felix Grawert

I wouldn't say the timeline has moved. I think the market, the capital market in particular, has misunderstood the timeline and is now just realizing how long it takes, yeah?

Let's recap, right? We saw the new 800-volt architecture, and now the implementation of that architecture is going to come in steps.

The first stage, where we see a silicon to switch to wide bandgap, is going to be on the very high-voltage side for the silicon carbide front end, yeah, when you do the down-conversion from the overland line from whatever, 10 kV, 13 kV, all the way to 800 volt, yeah? It's going to be silicon carbide, and that part is coming first.

Then, second, the down-conversion from 800 volt DC all the way to 1 volt, yeah, where the switching of the CPU and GPU is happening, the gallium nitride part, that will come later. I think the industry, especially the capital market, has overestimated how fast such a transition is going, yeah?

I think we gradually see now the transition starting on the silicon carbide side, and then with a bit of delay coming also on the gallium nitride side. It's a massive change in architecture, and this takes time.

Martin Marandon-Carlhian

Would you say that gallium nitride is still coming early 2027 or in 2027 at least?

Felix Grawert

As we said in the prepared remarks, it's too early to predict and to forecast. We see a very clear technical discussions, yeah, and we see around the trade shows like Computex and discussions that there is a hot momentum ongoing.

We have not seen that yet translate into orders, yeah? On our side, we don't have visibility and indications yet.

We have no doubt that it is coming, and I hope you could see that also from my remarks.

Martin Marandon-Carlhian

Yeah. Just the last question just to clarify if the orders, let's say, would come in early 2027, would you know already by now?

Or is it normal that sometimes you don't have this kind of visibility and you know about it a bit later?

Felix Grawert

I think it would be normal that we get notification relatively short term. Please recall that our systems are the tools of record across the whole market for the gallium nitride power.

All the development work, all the pilot work, all the sampling and pre-production work of all the customers has been done on our systems, either the older series G5+ or the newer series G10-GaN. All the customers work with our systems, which is they don't need us now to support in the preparation.

At some point, I expect the customer to come along with multi-dozen tool orders and say, "AIXTRON, how fast can you ship, please?"

Martin Marandon-Carlhian

That's very clear. Thank you very much.

Felix Grawert

You're welcome.

Operator

Next question is from Gustav Fröberg from Berenberg.

Gustav Fröberg

Good afternoon. Thank you for taking my questions as well.

Two and a half, if I may. Firstly, just on opto and the orders in Q2, very strong, obviously.

Is it correct to assume that the rest of the business is kind of stagnated or declined a little bit in Q2 versus Q1? Or another way of asking is, do you have a sort of base-level view of orders excluding the extra order intake you're getting from the upcycle in opto at the moment, if we can think about that as a sort of safe-level run rate, if you like?

That's my first question. Then second, last quarter, we talked about 80 to 120 tools needed for the opto market per year.

It seems you're pretty much already there for H1. I want to know in a little bit more detail if this preliminary view that you gave in Q1 has changed, or if you're simply hitting that number a little bit sooner than you thought you would?

Thank you.

Felix Grawert

Two very good questions, Gustav. Hello.

I think first question on the remainder of the business, I think as we have indicated, the power business continues to be stable at a low level, yeah? Silicon carbide pretty slow because of the underutilization and overcapacity still in the market.

The gallium nitride, here and there some orders, but still on a lower level before the next wave of investment kicks in, as we just discussed along the question of Martin. I think the two power segments are stable on a low level, yeah?

At the same time, as I've indicated, we expect for the next quarter the opto momentum to continue to be strong and upbeat, yeah? We see that from the pipelines, the inquiry pipelines, and sometimes in many cases with the big guys, big customers, also very clear forecast, yeah?

We have a very healthy confidence on the opto momentum for the coming quarters, yeah? Now to your question about the tools, 80 to 120, yeah, that was our initial forecast.

We currently see a stronger momentum than that, yeah? It's too early to predict, yeah, where exactly that's coming from, yeah?

Could be that the overall wave is bigger than we have expected, yeah? Let's see how it continues, but we currently see a bit stronger momentum than this 80

Gustav Fröberg

to 120. Super.

Very clear. Thank you.

Operator

Very well. Next question, Bank of America, Oliver Wong.

Please go ahead, Oliver.

Oliver Wong

Hey, guys. Thanks for taking my question.

First question is on capacity. Understand that, I guess, if you take the midpoint of the full-year guide and the Q3 guide, let's say Q4 at €220 million, and if this was to be stable going forward into next year, that would imply, let's say, €880 million in full-year capacity.

Is that the right way to think about it?

Felix Grawert

You should consider capacity not as a limiting factor. Please recall, the equipment business is relatively CapEx-light, for us, the situation is very different from that from our customers, right?

Our customers need a fab, they need a cleanroom. The customers need our equipment, luckily, yeah?

For them, it's always, they need, yeah, all the CapEx, all the preparation with multiple months, if not several quarters of preparation time, to create capacity. For us, on our hand, we are relatively CapEx-light, as and we have a decent flexibility also to shift some of the assembly tasks.

If you recall what we do at AIXTRON is mostly assembly and test in our own premises, in our own, yeah, cleanroom environment. We have a big flexibility in times of upside swings, as we're now realizing, to put some more of the work to our suppliers.

Let's say the suppliers in demand peak times then take some more additional assembly steps, and we get, for example, a tool partially half-assembled already when it comes to our shop floor. Means the tool is then not standing, whatever, I put arbitrary numbers, yeah, not taking whatever 10 weeks on our shop floor, but rather taking 6 weeks on our shop floor because 6 weeks of the work have been already at an outsourced assembly space, yeah, just to shine light on why this is such, yeah?

Therefore, capacities are not a limiting factor to us in itself at all.

Oliver Wong

Got it. My understanding is a lack of the full-year raise in spite of strong orders, that was, I guess, somewhat related to some sort of supply or capacity constraints.

Is that correct or not?

Felix Grawert

It's a ramp rate. It's not a capacity.

It's a good one, good question to clarify that. Thanks for following up on that one.

It's a ramping rate constraint. It's not a capacity, right?

It's the question within the given machine premises, buildings, cleanroom space, what I consider capacity is, how fast can we hire people on board? How fast can our suppliers hire people to operate the machines which are then being used to manufacture the parts, yeah?

It's a purely limitation of the speed how fast we can accelerate. Think about you're a car going on the highway, you have no Vmax, yeah, but the question, how long does it take you to reach your travel speed?

Oliver Wong

Yeah. Makes sense.

I guess we can kind of run-rate the, let's say, €220 million Q4

Felix Grawert

[unclear]. No problem.

Once you're at travel speed, you can cruise easily and comfortably.

Oliver Wong

Sounds good. Thank you very much.

Operator

Great. Next question is from BNP Paribas, Martin Jungfleisch.

Martin Jungfleisch

Hi. Good afternoon.

Thanks for taking my question. First one is on gross margin.

I think the implied gross margin for the second half is around 46%. What is your view on phasing here?

Should we expect more like 44%, 45% gross margin in the third quarter, maybe up to 47% in the fourth quarter? With that gross margin level of around 46%, let's say, in the second half, is that sort of level you're kind of comfortable with for next year?

Or would the Malaysian facility ramp have any impact on that in the short term?

Felix Grawert

Honestly, we haven't done the math on the details, but what we clearly see is that the laser systems carry, of course, a bit of a better margin profile simply coming from the fact this is a highly, highly, highly complex systems, yeah, and all our customers have their own differentiating features that they order. They have very differentiated recipes, yeah?

I think laser epi is some of the most complicated stuff that customers make on our tools, yeah? Given from these, yeah, technical requirements, of course, that translates then into a bit healthier margin profile.

From that onward, we would also expect in 2027 to clearly see an uptick in terms of the gross margins, as you rightfully state, yeah? It will be a good year 2027 that we can already see ahead of us.

Martin Jungfleisch

Okay. Is there any ramp costs for the Malaysian facilities that you're seeing in 2027, and is it meaningful?

Felix Grawert

There's some ramp costs, of course. There's also some fixed cost degression effects.

For first order, consider this a wash.

Martin Jungfleisch

Thanks. Then the second one is really on opto.

Can you disclose what kind of configurations you're mainly shipping today? Is that still mainly 4-inch, and is it increasingly also 6-inch?

Then also, have you received any data on how the epi yields at your customers are progressing in both 4 and 6-inch? Thank you.

Felix Grawert

Majority of system is shipping on 4-inch. I think probably 70%, 80% is on 4-inch, smaller one on 6-inch.

All customers, of course, want to be ready for 6-inch for a conversion at a later point in time. I think the yields that our customers achieve are probably some of the best-kept secrets I could imagine, and we don't have a transparency into those.

I wish I had those.

Martin Jungfleisch

No worries. Thank you.

Operator

Next question is from Deutsche Bank, Michael Kuhn.

Michael Kuhn

Good afternoon. Thanks for taking my questions.

Once more on orders, there was still, I think, around €95 million to be secured at H1, and I think you secured those in the meantime. Still, let's say if, let's say, ramp speed is the constraint and not, let's say, the customer willingness to buy, let's say why, let's say, the hesitance of customers to, let's say, fill the remaining slots for this year?

Felix Grawert

A quarter is always an arbitrary cutoff line, right? I think as you rightfully state, quite a decent amount of orders has already been received, yeah?

We are already now one month into the quarter, yeah? Also, we are at this point in time, from the big guys, also receiving multi-tool orders, yeah?

It is filling quite fast, yeah? No concern on that one.

Order coverage is good, yeah, and also we are well on track.

Michael Kuhn

Understood. Thank you.

Maybe on order backlog, I think there should be something like €220 million now in already for next year. You mentioned opto is quite diversified, talking about round 15 customers.

Would you be able to give a rough indication what the biggest customers make up in that order backlog?

Felix Grawert

Honestly, I don't have the data in front of me. That's a very very specific question.

Maybe let me shine a little bit light on the order backlog. Yes, there is some going into 2027.

There's already some going into 2028 also, to give a light in there. Also, some part of the order backlog still relates to some power electronics, where customers shifted something out, yeah?

It's not all optoelectronics. There's also some small portion of gallium nitride left, small portion of silicon carbide left, yeah, where some customers had placed orders, and then at some point when with the power wave collapsed, they didn't cancel, yeah, or we didn't let them to cancel, both cases happened, and they just say, "Look, AIXTRON, at some point, the market is coming back, and then we will call the tools."

Yeah? It's a small portion also of power left.

Michael Kuhn

Understood. Thank you.

Then one more on gallium nitride, I think there's something in the presentation saying that the technological outperformance was confirmed. Maybe just to understand how that technological outperformance is, let's say, defined and where you stand with that tool in the qualification processes?

Felix Grawert

Honestly, I don't get your question. What do you mean by technical outperformance?

Which part do you refer to? I'm not fully understanding your question.

Michael, are you still there?

Michael Kuhn

Yeah. I'm still there.

There is one bullet point actually in your presentation under your Hyperion tool which says technological outperformance versus 200 platform confirmed by a leading customer. I was interested in how you define that technological outperformance.

This is not my phrasing. This is actually from your presentation.

Felix Grawert

Now I get it. Thanks.

To point the right point. You're not referring to the update we have, but to some of the slides later on.

My team helped me find it. What we mean is we are able at this 300 tool is a single-wafer tool.

We are able, compared to the 200 tool, which is a batch tool, yeah, as you can expect from the single-wafer tool where all metrology measurements, temperature optimization target toward a single wafer, yeah, all the effort kind of is steered to one wafer instead of, yeah, spread over five wafers, we are able to achieve an even better uniformity, particle performance, all the performance topics that you expect from an epi, yeah? We see that customers are very happy with that because it allows them to realize the next generation of gallium nitride devices.

We get very, very positive feedback from customers.

Michael Kuhn

Can you share with us, let's say, how many qualification processes or with how many customers you're currently running with that tool?

Felix Grawert

More than a handful.

Michael Kuhn

More than a handful. Very clear.

Thank you very much.

Operator

Next question is from Craig McDowell from JPMorgan.

Craig McDowell

Hi. Good afternoon.

Thanks for letting me on. My first question is on opto orders, and I think that the opto order for Q2 is around €160 million.

I understand that you do not recognize Chinese orders without a corresponding export license. I was wondering whether you could give a color on what is the sort of additional Chinese ordering in opto on top of that €160 million.

Is it an additional 20%, 30%, 40% on top that's not recognized in that Q2 optical order number? Thank you.

A minor topic.

Felix Grawert

A minor topic. Export licenses are no longer an issue.

We get them relatively quick these days. In terms of when we receive the customer order and the export license timing delay is marginal, yeah?

Not a significant topic.

Craig McDowell

Understood. Thank you.

My second question, just on the gallium nitride business, and I look back and I think it was Q3 Q3 2024, nearly 2 years ago, that you first indicated a GaN market maybe 3xing in the medium term, indicating around €450 million of of total revenue. That was 2 years ago.

I'm just wondering whether that view is still valid. I understand that orders aren't yet on the books, and but whether your confidence has grown in that, or or you think that forecast is still valid?

Thank you.

Felix Grawert

No, that view fully holds, yeah? We can confirm.

On the mid-term strategic value of the gallium nitride, we are fully convinced, yeah? That holds.

That's fully intact. It's just a question now when is this next wave for the gallium nitride really starting after we see utilization rates increasing, and at some point then installed capacity is fully utilized and then the next wave and the next momentum is starting.

Craig McDowell

Thank you. Just to follow up on the utilization rates, I think previously you were talking about utilization in your GaN installed base around 60% to 70%.

Is that still an accurate number, or has it edged up towards 70% plus?

Felix Grawert

I think it's gradually increasing, not a major shift as of now. I wouldn't expect this is now 90% or so.

Craig McDowell

Understood. Thank you very much.

Operator

Next question is from [unclear] Jefferies. Please go ahead.

Om Bakhda

Thanks for letting me on. Just had a question on capacity and pricing.

If we were to look ahead, and I know that at the moment you're not getting any signals on a GaN inflection, but if GaN was to inflect along with opto within the next 12 months, and then you were able to deliver a quarterly order run rate of above €250 million, and then in that case within 2027, you'd be fully utilized on that €1 billion for the year, do you see there could potentially be scope in pricing if you've become fully utilized in 2027?

Felix Grawert

As I mentioned again, right, you shouldn't think about capacity limits, yeah? I would be very happy to get additional orders, and I would then simply just ship more, yeah?

I'm not concerned of hitting any ceiling and then selling off a remaining slot at a premium, as I understand your question a bit. I'd rather say I take all the orders and ship all the orders and make sure that I fully benefit from the upswing.

That's rather the strategy.

Om Bakhda

Got it. Perfect.

Then just on gross margin evolution sort of over the medium term, if we assume that at some point within the next 1 to 2 years, both opto and GaN, especially in the first question, were to be very strong together, and again above €250 million in revenues per quarter, and then again now as customers are moving to higher-diameter wafer sizes on their production line, and so then the G10 tool becomes increasingly part of the mix, could we see your gross margins tending towards 50% over the sort of mid to long term?

Felix Grawert

Oh, you're getting very bullish here. You get very bullish on the revenue side about projecting 250 per quarter.

Clear message from my side, we have no capacity limit. I really want to say that, yeah?

From the capacity standpoint, I'm not concerned, also not concerned with your number. I think I've highlighted this several times in the call.

However, also want to clearly say that we don't see any signs as of today to go to 250 per quarter, right? I think to really reiterate, yeah, we have a good confidence to see around 200 per quarter now for the next few quarters, and then let's see what then happened, yeah, to really clarify out the assumptions, yeah, because the numbers are already getting bigger as the longer the call continues, yeah?

Now regarding your question with 50% on the gross margin, please recall that we are today at a 42%, yeah? Please also recall that getting a percentage point of gross margin is typically quite a decent amount of work, yeah?

It just doesn't go so fast. There's many, many elements behind it, yeah?

What you're asking for is a very big step, and, whew, I don't know. This is quite a long way to go, yeah?

I would say from the 42% where we are, we will clearly see a couple of percentage points in next year overall in gross margin, yeah? That's going to help us.

I think the direction of gross margin increasing is clearly there. 50%, I think, is clearly too far, yeah?

Maybe somewhere in between, yeah? Let's see where exactly we end up, and also we are not there yet, we don't have detailed numbers, but just to give you an indication.

Then, of course, please also take into account, I see that you're trying to build the numbers, as we continue to grow as a company, we will also then, of course, pull up the OpEx a bit, yeah? We are very innovative company, yeah?

We obviously have many ideas on the R&D side, and by investing in R&D, it was always good for us because the R&D investments we've made, I think, in the past have been, yeah, quite pointed, yeah, and I think all the R&D investments we've made have realized or led very nicely then a few years later to a nice revenue increase, yeah, and overall company growth, yeah, value growth for our shareholders as an ultimate goal, yeah? If we have a more financial freedom, we, of course, will also continue to increase our R&D rate, and it will allow us to pull in some projects and to realize some ideas, yeah, because as you can see, compound semiconductors are really at a very, very sweet spot now, yeah?

Their properties, optical properties, are great, yeah, for the lasers, for communications, yeah? We need ever more communications with more data on the AI, yeah?

Micro LED is coming back. There's some other optical applications lurking on the horizon, power electronics, and so on and so forth.

The stronghold in the sweet spot we are in, we will continue to grow that. I think we've demonstrated in multiple times that with our innovation ability, we can shape and we can create new markets, and we will continue to do that.

Om Bakhda

Great. Thank you.

Operator

Next question is from Veysel Taze, Metzler.

Veysel Taze

Hi. Veysel Taze from Metzler.

A question regarding your opto business. There were recently speculations that co-packaged optics and TSMC's COUPE platform, there might be delays for the NVIDIA platform and co-packaged optics potentially rather for 2029, and that NVIDIA might take a similar approach like Google using more optical circuit switching as a transition step, to say.

What would that mean for your business in opto?

Felix Grawert

Honestly, I think you're on a detailed level for the different architectures. We do not see that those, yeah, optical architecture nuances affect our demand.

What we rather see is that our customers are asking us to ship the tools to provide the capability, and in the end, the tools and the wafers made on our tools can then be utilized in all sorts of different architectures, whether this is a pluggable optics, whether this is a co-packaged optics or at a stage even after that photonic integrated circuits, the PICs, yeah, whether this is a GPU-to-GPU rack-to-rack, yeah, communications, and some customers are even experimenting, but probably coming more towards the end of the decade, yeah, to go to optical interconnect between the GPU and the high-bandwidth memory, yeah? I think the overall strategic direction, the strategic trend is very clear, which is more optical communication, more data, and going from long distance to medium distance to short distances to very short distances.

On our side, we do not look into the details of the architecture that our customers using, but I'm not concerned that any of these architecture details that clearly our customers have to take into account has major impact on us because our tools are very versatile, and the customers can use them for each of these architectures. We are very robust in respect to that.

Veysel Taze

Got it. An OCS type of architecture would not be negative for you, at least not at this stage.

Then a second question regarding the GaN opportunity, you mentioned that you are quite confident that this will ramp in volumes. My understanding is the larger GaN opportunity in terms of number of dies is rather on the board level, right, when voltage regulators shifting to GaN, really the server board, and then the GPUs, and the compute there.

Would you assume that with the 800-volt DC architecture that the board-level voltage regulators would be fully based on GaN, or are you assuming a kind of mix that it will be also silicon still and not fully GaN? What is your take there?

Felix Grawert

A very good question. The wafer area scales inverse with voltage, means the lower the voltage, the more area is needed, wafer area, die area.

That's simply Ohm's law, right? Means for a given power, the lower the voltage, the higher the current, and the higher the current, the more parallel devices I need to split the current over, yeah?

That's just basic physics. That's a good thing, yeah?

It will not be changed and also cannot be changed by any architectures relating to your first question on the opto. It's just what it is, yeah?

Yes, the lower the voltage, the more dies are needed. Now to the second part of your question, what we get back as signals from our customers, yeah, is that they say, "Look, we will convert from silicon," yeah?

The old architecture is fully silicon, yeah, from the big overland line and cable all the way down to the CPU and GPU by silicon. The customer signal us, we'll start from the highest voltages first, yeah, at the entry point of the data center in silicon carbide.

I mentioned that in an earlier question here in this call. Then in the next step going from the 800-volt DC to 200-volt, 100-volt intermediate voltages in the gallium nitride, and then 48, 12-volt, 6-volt, 1-volt, yeah, step by step, yeah?

That is a very nice because it means that we look, once the conversion to gallium nitride has started, to a multi-year growth opportunity likely starting somewhere on the 650-volt, then extending to the 100-volt, and later on then going down to the 20-volt, 12-volt, 6-volt devices, yeah? The penetration speed of gallium nitride displacing and pushing out silicon will likely depend first of all on the cost-down curve that our customers are able to realize.

The customers are working heavily on die-size shrinks, yeah? They work on devices which are 30% smaller, other customers are working on devices which is 50% smaller, so that out of a given wafer, you can get more dies and a die gets cheaper.

Then always, this is how the semiconductor industry works, yeah? As cost goes down, your market grows bigger because you can displace another technology, in this case silicon, yeah?

This is roughly the perspective that we have on this market.

Veysel Taze

Got it. Then really a very quick one on the down payments.

I'm not sure if I have the right number for Q1, but my impression is down payments have shifted quite in second quarter, and my understanding was you require from Chinese customers a much higher down payment, right, for the orders they are placing. Would that imply that in Q2, you had a decent or high number of orders in opto placed from Chinese customers?

Or would that be a wrong assumption?

Felix Grawert

No, there's a misconception. We don't request a higher down payment from Chinese customers.

The down payments and the payment terms vary strongly application segment by application segment and region by region, yeah? Now given that especially now with the opto boom, from many customers we have received multi-tool orders stretching over an extended period of time, we've been able to ask quite a number of our customers for a higher percentage of down payment, but this extends all across the globe.

Veysel Taze

Got it. Thank you.

Operator

Next question is from Mr. Nigel van Putten from Morgan Stanley.

Nigel, the floor is yours.

Nigel van Putten

Hi, good afternoon. I have a question, a bit of a two-parter.

From your commentary, I get the sense that historically, first quarter has been 10% to 20% of revenue. There's no real expectation that will continue.

Would it be fair to say that directionally, we should look at the first quarter in 2027 as sort of a sequential increase relative to the fourth quarter, or at least at a similar level, not necessarily a big drop as we've seen before? The second part of that question would be, I can imagine that gross margins benefit from more stable or more predictable loading.

Is that a major driver when you say 2027 gross margins look good? On the other hand, there's more G10 in the mix.

Just trying to get a sense of what are the drivers of the gross margin into next year.

Felix Grawert

I think both good assumptions, yeah? Historically, for everyone here in the call, the Q1 at AIXTRON was, I think, three, four years has been always a very, very slow start of the year, then we've always finished at a super high record towards the end of the year.

Looking towards 2027, we can't see the full year of 2027 yet, that's clear, but we have a visibility also now in the beginning of 2027, of course, and we expect a very strong Q1, yeah, probably somewhere on the level of what we can see right now for the Q4, I would say, first guess, yeah? Now to your second question on the gross margin, as mentioned and discussed a bit earlier, right, we expect clearly an uptick from the level where we stand, yeah, clearly not the 50%, yeah, that we had earlier.

I think that will take a bit of work. I think it will be a mix of things coming together.

As discussed, product mix will help, right? The laser systems being more complex, more sophisticated, hence carrying a bit of a better margin, yeah, a bit of fixed cost degression, on the other hand, again, some ramp costs, yeah?

With all these effects together, we expect a decent, yeah, uptick on the gross margin, but it's very difficult at this point in time now to tie that and split it out in the exact detailed cost, yeah?

Nigel van Putten

Understand. Maybe a quick question switching gears a little bit, we've been talking obviously CW and the other high-power lasers are clearly the big opportunity, but what about VCSEL?

Do you see any demand from customers for those tools? My understanding is there's quite a bit of capacity built already.

If we see, let's say, a VCSEL growth as well for some applications, would that potentially benefit you, I can imagine that it could be a benefit, but relative to the more high-power side of lasers, it's probably much smaller. Is that a fair assumption to make?

Felix Grawert

Very good question. We see, in fact, most people are working now on the traditional devices that we discussed for most of the call.

VCSEL, some customers work on VCSEL for the communication as an alternative because you can just take an optical fiber and bump it onto the VCSEL, right, multi-mode fiber, and then collect the light of it. Some customers are working on that on the gallium arsenide systems, VCSELs like we used in the same type of systems that we used for the 3D sensing few years back, yeah?

Interestingly, some customers are also experimenting with VCSELs on the gallium nitride systems, we talk about blue LEDs, if you want to say so, and see whether they can use that for doing die-to-die communications, yeah, in heterogeneous integration, for example, to couple GPUs or high-bandwidth memory, yeah, on a silicon carbide interposer, and see whether they can replace copper interconnect by optical interconnect, yeah? I would say at this stage, this is still research, but it gives us a good level of confidence that the trend of optical communication, not only as a wave for now 2026, 2027, 2028, yeah, but rather also has some, yeah, technical ideas, new innovation ideas, which probably are kicking in towards the end of the decade.

Nigel van Putten

Very interesting. Thanks so much.

Operator

With that, we have the last question from HSBC, Adithya. Please go ahead.

Adithya Metuku

Actually, my last question was on VCSELs about it substituting indium phosphide in certain use cases, but that's been answered, thank you.

Felix Grawert

Perfect. Then it sounds we are done.

Apologies from our side for this little hiccup. We all had to wait for 15 minutes, and hope we could make that up with a good discussion.

Was a pleasure.

Christian Ludwig

Yes, thank you all from my side as well. Most of you, I guess, will be going into the summer break.

We will be starting hitting the road end of August, doing a lot of conferences with different participants, hopefully we'll meet a lot of you before we meet again for our Q3 results, which will be out end of October. Until then, have a great summer break, and hope to see you soon.

Thank you, and goodbye.

Felix Grawert

Bye.