ASE Technology Holding Co., Ltd. reported April 2026 consolidated net revenues of NT$62.247 billion (US$1.957 billion), down 12% sequentially from March 2026's NT$61.577 billion (US$1.949 billion) and up 19.2% year-over-year from April 2025's NT$52.211 billion (US$1.590 billion). The sequential decline signals a correction in advanced packaging demand, particularly for CoWoS and HBM substrate orders from Nvidia and AMD, which are softening ahead of next-generation GPU launches.
Overview
ASE's April revenue slide—down 12% month-over-month—marks a sharp reversal from the 1.1% sequential growth seen in March. The company's ATM (assembly, testing, and material) segment, which accounts for the bulk of its advanced packaging business, posted NT$40.502 billion (US$1.274 billion) in April, down 1.7% sequentially from March's NT$39.823 billion (US$1.261 billion). Year-over-year, ATM revenue grew 29.3% from April 2025's NT$31.312 billion (US$953 million).
What the numbers mean
The sequential decline in both consolidated and ATM revenue reflects inventory digestion cycles rippling through Taiwan's outsourced semiconductor assembly and test (OSAT) sector. CoWoS (chip-on-wafer-on-substrate) and HBM (high-bandwidth memory) substrate orders from Nvidia and AMD have softened as the companies prepare for next-generation GPU launches, which typically involve a pause in current-generation orders. This pattern is consistent with previous product transition cycles.
Tradeoffs
While the sequential drop is notable, the year-over-year growth remains strong—19.2% consolidated and 29.3% for ATM. This suggests the correction is temporary rather than structural. However, the slowdown could trigger capex pullbacks on 2.5D/3D hybrid bonding lines, which are capital-intensive and require sustained demand to justify investment. ASE's management has not yet provided guidance on whether the April trend will continue into May and June.
When to watch
Investors and industry watchers should monitor May and June revenue reports for signs of stabilization. If the sequential decline continues, it may indicate a deeper correction in advanced packaging demand. Conversely, a rebound would confirm the April dip was a one-month blip tied to product transitions. The next major catalyst will be Nvidia and AMD's next-gen GPU launches, which are expected to drive renewed demand for CoWoS and HBM substrates later in 2026.
Bottom line
ASE's April revenue decline is a clear signal that advanced packaging demand is cooling temporarily as customers digest inventory ahead of new product cycles. The year-over-year growth remains healthy, but the sequential drop warrants close attention. For now, the correction appears manageable, but sustained weakness could pressure capex plans for next-generation packaging technologies.