Russell Ellwanger
Analyst · Susquehanna Financial Group
Thank you, Noit. Hello, everybody. Thank you for joining our call today. The first quarter of 2026 was solid, providing a strong foundation for the high growth we expect this year. We maintained strong financial performance with continued execution of our strategic priorities. Our first quarter 2026 revenue was $414 million, 15% year-over-year growth. First quarter net profit was $65 million, 62% year-over-year growth, yielding 16% net margin, up from 11% in the first quarter of 2025. Looking ahead, we guide the second quarter of 2026 to be the highest revenue in the company's history with a mid-range revenue guidance of $455 million, plus or minus 5%, representing a 22% increase as compared to the second quarter of 2025 and a 10% growth quarter-over-quarter. We strongly reiterate our target of quarter-over-quarter revenue and margin growth throughout 2026. We continue to strengthen our alignment and partnerships with our photonics customers through the execution of long-term customer commitments, contractually representing $1.3 billion revenue in 2027 with significantly larger valued contracts for 2028, backed by approximately $290 million in prepayments already received from our largest SiPho customers. This reflects the strength of our offerings and our customer partners' confidence in our ability to meet the continued growing demand of next-generation AI data center architectures. Importantly, these reservations do not represent the entire expressed demand of these customers nor the extent of our planned shipment to these customers, and do not include additional wafer shipments to our broader base of more than 50 active SiPho customers serving various end market applications. These commitments, together with our continued technology leadership and strategic expansion of 300-millimeter and global manufacturing capacity, provide us with enhanced revenue visibility and confidence in sustained profitable growth. Our recently announced restructuring deal in Japan in TPSCo marks the significant milestone in advancing our long-term 300-millimeter strategy. By transitioning to full ownership of the 300-millimeter factory Fab 7 in Uozu, we are creating a more focused and scalable platform to support growing customer demand, particularly in our differentiated optical photonics technologies. Full ownership allows us to expand and build upon a facility that is running multiple fully qualified, high-volume application flows and importantly, at present volumes is already profitable. The 300-millimeter expansion tied to the approval of METI grants is designed to be strategic, operational and capital efficient. With access to adjacent land, we expect to further build out and scale up to 4x current levels, generating a meaningful long-term growth engine anchored in high-value technologies. This approach leverages existing customer qualifications with increasing demand, allowing incremental capacity to translate into revenue and cash flow almost immediately as new tools are installed. This positions our 300-millimeter platforms not only as a key driver of future growth, but also as a structurally stronger contributor to profitability, reinforcing our overall financial model and long-term value creation. Additionally, we have entered into a long-term supply agreement with Nuvoton for Fab 5 Tonami. This will ensure manufacturing continuity for our 200-millimeter customers under terms that are mutually beneficial. Moving specifically to first quarter of 2026 performance. This year has begun in a very strong fashion, led by Silicon Photonics with a revenue growth of 3x year-over-year, all major technology offerings demonstrated year-over-year growth with imagers up 9%, RFSOI up 12%, power management up 10% and silicon germanium up 24% year-over-year. Please see Slide 4 as reference for Q1 revenue breakdown by technology. Focusing on RF infrastructure, last quarter was truly amazing, both in our team's execution of aggressive capacity expansion as well as in demonstrating new breakthrough technology milestones. First, we continued a strong ramp of 200 gigabit per second products for multiple customers while continuing to support strong demand in older products by taking full advantage of new capacity coming online. We are in the midst of a SiPho production ramp in each of Fab 2 Migdal Haemek, Fab 3 Newport Beach, Fab 9 San Antonio and Fab 7 Uozu Japan 300-millimeter. Among this, we successfully achieved in Q1 first flow cycle revenue shipments from both Fab 2 and Fab 7, the latter having achieved impressive 95% yield for the first SiPho wafers leaving the factory. Our expansion remains on track to grow SiPho capacity 5x from the base of our Q4 '25 wafer revenue shipments by the end of this year 2026. In 2027, we anticipate our focus will turn primarily to additional 300-millimeter capacity expansion in the Uozu factory supported by the expected full factory ownership. Next, we achieved a number of next-generation technology breakthroughs working with several of our key customers. This quarter, we announced the demonstration of an all-silicon 400-gigabit per lane Mach-Zehnder Modulator with our strong partner and optical industry leader Coherent. Coherent being one of our customers having signed a high-volume, long-term contract. With OpenLight, we recently announced a heterogeneously integrated 400-gigabit per lane indium phosphide electro-absorption modulator on our silicon PH18DA platform. In addition, we made strong strides towards bringing thin-film lithium niobate to high-volume manufacturing and announced our partnerships with Lightwave Logic and NLM Photonics to bring organic polymers to high-volume production for next-generation compact modulators. Just prior to the Optical Fiber Conference, we announced our partnerships with Salience Labs and Oriole Networks to manufacture advanced silicon photonics-based optical circuit switches, both using our PH18DA platform with heterogeneous integrated indium phosphide optical amplifiers to achieve high bandwidth and ultra low-latency optical switch solutions for AI data center scaling. Last but certainly not least, our partner, SCINTIL Photonics announced availability of the world's first heterogeneous integrated dense wavelength division multiplier, DWDM laser sources, designed for near-package optics and CPO-based AI infrastructures. Most market analysts forecast that pluggable optical transceivers will remain the dominant format through the end of this decade. We do see extra dense pluggable optics, XPO being led by Arista with the aim to extend the served generations of pluggables and highlighted by Andy Bechtolsheim in his Optical Fiber Conference Executive Forum panel presentation and near-package optics, eventually also co-package optics, emerging and coexisting with pluggables for the next several years and are thus preparing to ramp these technologies as well. At this year's OFC, Tower Silicon Photonics was on display in leading XPO and near-package optics demonstrations. We are already seeing strong demand for MPO products in 2027. Given the strong customer traction, it's our expectation that Tower SiPho will continue to lead in these new optical form factors. NPO is likely to ramp over the next several years and precede a significant ramp in CPO for our primary customers. However, we are investing heavily in several CPO technologies, namely in-house 200-millimeter and 300-millimeter hybrid bonding with Through-Silicon Vias to seamlessly attach SiPho to electrical ICs, laser sources for both more traditional as well as DWDM architectures for use in CPO implementations and reduced size high-performance modulators for use in space-challenged CPO form factors. In addition to SiPho, our silicon germanium platform is experiencing unprecedented demand for use in drivers and transimpedance amplifiers for optical transceivers and also for active copper cables that can be an attractive alternative to optical for short distance scale-up architecture. Additionally, our RF silicon germanium technology is in the midst of a strong ramp for LNAs in a Tier 1 mobile platform. In silicon germanium, we recently announced our partnership to produce high-power U.S.-made silicon germanium beam-forming ICs designed for defense radar and satellite communication applications. Fabricated at our U.S. sites, these chips aim to secure domestic supply chains, offering superior performance for critical next-generation defense systems. As our sites turn to space, whether for data centers or for global satellite connectivity, we see our silicon germanium platform being well suited to support these growing applications. Looking at RF mobile, we continue to move our RFSOI 200-millimeter technologies to 300-millimeter to take advantage of finer line and other enhanced capabilities offered at 300-millimeter, whilst repurposing this 200-millimeter capacity for higher-margin SiPho and SiGe capabilities. Substantial improvements of our Ron-Coff relative to competitors and reduced layer count is creating a strong design win momentum that positions our 300-millimeter RFSOI platform for sustained growth over the next multiple years. In power management, we have seen year-to-year revenue growth in both our 200-millimeter and 300-millimeter BCD offerings. In the last quarter, we announced the release of our latest power platform, Gen3, achieving on-resistance below 1.5 milli-ohm millimeter squared for key devices with operating voltages above 10 volts. Such low on-resistance enable high power conversion efficiency in a variety of applications and places our offering at a very competitive position relative to other foundry offerings. Using our technology, our lead customers have demonstrated a 15% reduction in power conversion losses, quite significant as compared to the highest efficiency alternatives. Some of the end markets where we have seen revenue growth have included consumer mobile and automotive. In addition, as the AI data center power delivery market transitions to 800 volts DC bus at the rack level, we see a significant growth opportunity ahead in smart power stages and point-of-load converters designed with our BCD offerings. Lastly, in consideration of the value we are offering, our 200-millimeter BCD pricing has increased by 13%. Image sensors, the fastest-growing CIS segments are automotive, industrial, machine vision and high-end video cameras. Growth in each of these areas is concentrated in the high-end portion for high-resolution, high dynamic range with sensitivity to low light and global shutter technology are required. Tower's global shutter technology, combined with its wafer-to-wafer hybrid bonding provides best-in-class performance in terms of low noise and high sensitivity and allows high resolution. Additionally, we are developing an ultra-high-density in-pixel capacitor to provide best-in-class dynamic range, especially for the automotive market. We won a second high-performance automotive product this past quarter. Significantly, we are fully qualified with the next-generation high-end video sensor with a leading high-end photography camera maker awaiting their product launch. Turning to utilization. For the first quarter, utilization rates for Fab 2 at around 60% utilization as SiPho and SiGe qualifications continue. Fab 3 operated at 80% utilization. Utilization was slightly constrained due to adding newer SiPho and SiGe processes. We expect utilization and output to increase back in the second quarter. Fab 5 was at 75% utilization. Fab 7 continues to be fully utilized, well above our 85% utilization model. Fab 9 utilization was at 80%. With that, I'd now like to turn the call over to our CFO, Mr. Oren Shirazi. Oren, please?