Valuation is based on a normalized EV/EBITDA multiple (approx. 13x) applied to sustainable EBITDA of ~$260M (annualized from Q3 guidance, adjusted for cyclical normalization and CS&I growth), net of $577M cash, and using the latest reported share count of 35M. Growth sustainability is high due to s…
ACLS Q2 2026: Power Orders Up 46% in China, Memory Momentum Signals 2027 Growth
ACLS outperformed expectations with robust execution and sequential growth in key segments, most notably in China and memory. The company’s positioning in silicon carbide and memory markets, coupled with expanding CS&I aftermarket revenue, sets a higher baseline for 2026 and 2027. Management’s outlook upgrade and merger progress with VECO underscore a strategic pivot toward scale and diversification.
Summary
- China Power Demand Surges: Sequential revenue gains and new customer wins drive market share in China’s power segment.
- Aftermarket Expansion Accelerates: CS&I revenue outpaces expectations, leveraging installed base and customer utilization trends.
- 2027 Growth Visibility Improves: Memory and power momentum, plus merger tailwinds, set up another year of revenue growth.
Business Overview
ACLS, or Excellus Technologies, is a semiconductor capital equipment provider specializing in ion implantation systems and aftermarket services for chip fabricators. The company operates two primary segments: systems (hardware sales for new and existing fabs) and CS&I (Customer Support & Innovation, aftermarket upgrades, spare parts, and services). Major end markets include power semiconductors (silicon carbide and silicon), memory (DRAM and NAND), advanced logic, and general mature nodes, with China and Korea as leading revenue geographies.
Performance Analysis
ACLS delivered quarterly revenue above guidance, driven by strong execution in both systems and CS&I segments. Systems revenue growth was propelled by power and mature node markets, while memory moderated as expected due to fab space constraints. CS&I’s sequential strength stemmed from higher utilization rates, aftermarket upgrades, and a growing installed base, underscoring its role as a stabilizing revenue engine across cycles.
Geographically, China surged to 46% of total revenue, up from 40% last quarter, reflecting accelerated power market demand and new customer wins. Korea remained the second-largest region at 26%. Bookings edged higher, keeping the book-to-bill ratio near 1, and backlog stood at $452 million, providing near-term visibility. Gross margin came in just below target at 42.7%, with mix and service costs as primary drivers. Free cash flow remained positive, even after merger-related expenses, and the balance sheet is robust with $577 million in liquidity.
- Power Segment Recovery: Both silicon carbide and silicon power markets rebounded, with order rates exceeding two-year averages and new wins in China.
- CS&I Outperformance: Aftermarket revenue benefitted from increased tool utilization and effective upgrades, especially as customers maximize existing capacity.
- Memory Lumpy but Uptrend Maintained: Sequential moderation in memory was offset by strong DRAM demand and expanding customer portfolio, with momentum expected into 2027.
Operating leverage is poised to improve as higher volumes absorb fixed costs, though mix and margin dynamics remain sensitive to end-market shifts.
Executive Commentary
"Our results reflect strong operational execution as we capitalise on favourable demand trends in several of our key markets."
Russell Low, President and CEO
"Bookings were $131 million, slightly higher sequentially, continuing the trend of improving order activity with a book-to-bill ratio of approximately one times."
David Ryzhik, Senior Vice President and Interim Chief Financial Officer
Strategic Positioning
1. Power Market Penetration and Diversification
Silicon carbide demand in electric vehicles and emerging data center architectures is a structural tailwind. ACLS is capturing share through differentiated high-energy implant technology and new customer adds in China, while also expanding into non-automotive applications like industrial and solar.
2. CS&I as a Recurring Revenue Engine
CS&I, aftermarket services and upgrades, has become a key buffer against cyclical swings in hardware demand. Higher utilization rates, a larger installed base, and successful upgrades are driving sustained growth and margin stability in this segment.
3. Memory and Advanced Logic Upside
Memory system sales remain lumpy but are on a clear upward trend, with DRAM leading and NAND expected to follow. ACLS’s high current and medium current implant solutions position it well for customer clean room expansions in 2027 and beyond.
4. Merger with VECO for Scale and Capability
Pending VECO merger is on track for late 2026 close, promising broader capabilities and growth opportunities. Management is signaling increased investment in technology innovation and long-term initiatives post-merger.
5. Geographic and Customer Mix Evolution
China’s share of revenue is rising, but management notes improving activity outside China as well, suggesting a more balanced global demand profile in future periods.
Key Considerations
This quarter marks a strategic inflection for ACLS, as operational execution aligns with secular growth drivers in power and memory, and the business model shifts toward greater recurring revenue and geographic diversification.
Key Considerations:
- Installed Base Leverage: Growing installed base underpins CS&I’s aftermarket revenue and margin resilience, especially as customers delay new capex.
- End-Market Exposure: Power and memory markets are cyclical but show strong secular underpinnings from EVs, AI data centers, and industrial electrification.
- Margin Sensitivity: System mix, especially memory, can dilute gross margin, but long-term aftermarket pull-through offsets this effect.
- Merger Integration: Successful VECO integration will be critical for realizing scale and innovation synergies.
Risks
Margin risk remains elevated due to mix shifts toward lower-margin memory systems and variable service costs. Heavy China exposure heightens geopolitical and regulatory risk, especially as the company awaits regulatory approvals for the VECO merger. Cyclicality in end markets, especially if clean room buildouts are delayed, could disrupt growth visibility. Management’s guidance assumes continued secular demand, but any macro or customer-specific disruptions could impact results.
Forward Outlook
For Q3 2026, ACLS guided to:
- Revenue of approximately $230 million
- Gross margin of approximately 43%
- Operating expenses of approximately $62 million
- Adjusted EBITDA of approximately $41 million
- Tax rate of approximately 15%
- EPS of approximately $1.11
For full-year 2026, management raised guidance:
- Now expects year-over-year revenue growth (previously guided to flat)
- Anticipates margin improvement in Q4 relative to Q3
Management highlighted:
- Stronger second-half demand in power and memory segments
- CS&I revenue base expected to remain robust as utilization and upgrades continue
Takeaways
ACLS is demonstrating strong execution and strategic flexibility as it leans into secular trends in power and memory, with an expanding recurring revenue base and a robust balance sheet.
- Growth Anchored by Power and Memory: Sequential revenue gains and customer expansion in China and memory markets are driving higher baseline growth into 2027.
- Aftermarket Revenue as a Stabilizer: CS&I’s outperformance reduces cyclicality risk and enhances long-term margin prospects, especially as installed base grows.
- Merger and Mix Remain Key Watchpoints: Successful VECO merger and favorable mix evolution are critical for unlocking scale and maintaining profitability as ACLS grows.
Conclusion
ACLS’s Q2 2026 results confirm its ability to capitalize on secular demand in power and memory while building a more resilient business model through CS&I expansion. The upgraded outlook and pending VECO merger position the company to capture further share and expand capabilities in a structurally growing semiconductor landscape.
Industry Read-Through
ACLS’s momentum in power semiconductors and memory underscores robust demand for ion implantation and aftermarket services across the semiconductor capital equipment sector. The strong China contribution and new customer wins signal continued regional investment, even as geopolitical risks persist. Aftermarket revenue growth as a stabilizer is a notable trend for peers, highlighting the value of installed base leverage in cyclical industries. The pending VECO merger reflects an industry-wide push toward consolidation and scale, suggesting further M&A activity as capital intensity and technology complexity rise, especially in power, memory, and AI-related end markets.