ASMPT Ltd: At the Convergence of AI-Driven Growth in Advanced Packaging

Core Conclusion

ASMPT is positioned at an inflection point, with multiple new growth drivers across different time horizons set to transform its revenue profile and extend its growth visibility. Near-term strength in OSAT capex and AI server demand should propel 2026 revenue growth to 25%. The mid-term opportunity lies in Thermo-Compression Bonding (TCB) for CoWoS and HBM, where the company is gaining critical customer qualifications. The long-term trajectory is supported by a booming photonics business and a foundational position in Co-Packaged Optics (CPO). At 25x 2027e P/E, below its 10-year average of 27x, the stock does not fully price this transition from a cyclical equipment provider to a high-growth solutions vendor.

What the Market May Be Missing

The market likely misprices ASMPT as a traditional, cyclical back-end equipment player. This view overlooks the breadth and depth of its technology platform, which is being successfully leveraged into the most critical high-growth areas of the AI era: advanced packaging (CoWoS/HBM) and optical interconnect (CPO). The company's precision process expertise from SMT and semiconductor back-end is proving directly transferable. The revenue contribution and superior margin potential from TCB tools and photonics/CPO solutions are not yet reflected in consensus estimates or the current valuation multiple.

Evidence Chain

Near-Term Momentum is Strong with Upbeat Guidance. Management expects 2Q26 bookings to remain elevated, with semiconductor solution bookings rising sequentially. This supports confidence in 2026 revenue growth accelerating to 25%, driven by robust OSAT capex—forecast to grow 35% in 2026—and sustained AI server demand. The investment implication is clear visibility for above-cycle growth in the coming quarters.

TCB Tools Are Breaking Into New, High-Value Markets. ASMPT is making concrete progress in advanced packaging. This quarter, it delivered four C2W TCB tools to a leading foundry customer. More importantly, its fluxless TCB has been qualified by a key memory player for HBM4 16hi, with potential orders from a new customer that primarily uses in-house tools. This evidence points to TCB becoming a material revenue stream, with the company projected to hold a 40% share of a $1.6bn TAM by 2028.

Photonics Business Is Scaling Rapidly, Building a Bridge to CPO. First-quarter photonics solution revenue grew 500% year-over-year, fueled by demand for 800G+ optical transceivers. Critically, management confirmed that multiple ASMPT tools (NANO, NOVA, FIREBIRD) are applicable to key CPO assembly steps. With the CPO market expected to accelerate from 2028, this positions ASMPT to capture the next wave of optical networking investment, moving beyond cyclical SMT trends.

Financial Forecasts Are Being Raised Substantiating the Growth Story. Our 2027 and 2028 EPS estimates have been raised by 7% and 10%, respectively, primarily on SMT segment strength. Furthermore, the intermediate growth rate in our residual income model was lifted from 10% to 12% to account for the CPO opportunity. These upward revisions reflect growing conviction in the durability and quality of earnings growth over the forecast period.

Key Divergences & Risks

• Macro/Semi-Cycle Risk: A broader global semiconductor downturn could weaken back-end equipment demand.
• China OSAT Capex: A slowdown in capital expenditure intentions from Chinese OSAT players could delay expansion plans.
• Technology Competition: Failure to make progress in next-generation technologies like hybrid bonding could cede long-term market share.
• Margin Pressure: A higher revenue mix from the lower-margin SMT business could pressure overall corporate毛利率.

Valuation & Trade Implications

Our price target of HK$188 is derived from a residual income model (COE 9.2%, perpetual growth 12%), implying approximately 24% upside from current levels. This target corresponds to a 2027e P/E of about 25x. The valuation is attractive as it sits below the historical average, despite significantly improved growth visibility and a higher quality revenue mix from new drivers. The stock offers a compelling re-rating opportunity as evidence of execution on TCB and photonics/CPO materializes.

Appendix Data Summary

ASMPT Equipment Matrix – CPO Assembly Flow

TCB Market Forecast