Amkor Technology (AMKR)
Amkor Technology (AMKR)
Second-largest OSAT (outsourced semiconductor assembly and test) globally; developing independent CoWoS-equivalent HDFO advanced packaging platform alongside traditional assembly/test revenue.
Role in thesis
Primary name in amkor-cowos-tsmc-overflow-osat; secondary beneficiary in cowos-packaging-capacity-crunch (suggested-tickers since May 2026). 2026-08-17 refinement: TSMC has now named Amkor in a 10-year Arizona procurement deal, but 2026 Taiwan CoWoS overflow looks ase-led. Near-term AMKR evidence is independent HDFO / computing, not a TSMC CoWoS line item. From 2026-08-17-autoresearch-amkor-cowos-overflow.
Key financials
- Q2 2026 revenue: $1.898B (+26% YoY vs $1.511B; +13% QoQ vs $1.685B). Gross margin 16.8% (Q1 14.2%). EPS $0.70. Advanced products $1.557B (82% of sales). Computing 22% of mix, +20% sequential; Q3 computing guided ~+30% sequential. Q3 sales guide $1.95–2.05B, GM 18.5–19.5%. FY2026 capex $2.5–3.0B (65–70% facilities incl. Arizona Phase 1; 30–35% HDFO / test / other advanced). From 2026-08-17-autoresearch-amkor-cowos-overflow.
- Q1 2026 revenue: $1.68B (+27% YoY) — record first quarter (ir.amkor.com, April 2026)
- Q1 2026 gross margin: 14.2% (above guidance); Q2 guidance 14.5–15.5%
- Q1 2026 EPS: $0.33 (significantly above prior year)
- AI advanced packaging: guided to triple in 2026 vs. 2025
- Communications end-market: +42% YoY Q1 2026 — strongest segment; Q2 mix still 42% communications. From 2026-05-26-autoresearch-amkr-cowos-advanced-packaging-q1-2026, 2026-08-17-autoresearch-amkor-cowos-overflow.
HDFO platform
CEO Kevin Engel (Q1 2026 earnings call): "Amkor's HDFO platform, whether SWIFT technology (similar to TSMC's CoWoS-R) or CoWoS-L with S-Connect technology, now has over five customers engaged at different levels of qualification." HDFO = High-Density Fan-Out. Independent CoWoS-equivalent capability — not solely dependent on TSMC overflow contracts. From 2026-05-26-autoresearch-amkr-cowos-advanced-packaging-q1-2026.
Q2 2026 call: still 5 HDFO customers, 10 active engagements; 4 2.5D and 4 HDFO products launching in 2026; newest data-center CPU program ramping in Q2 (largest by scale); 2.5D at 11 customers. Bridge-type tech is a 2028 timeline. Utilization "from the 50s into the 70s"; several advanced platforms at full capacity. From 2026-08-17-autoresearch-amkor-cowos-overflow.
Investor Day (May 21, 2026)
Long-term targets:
- Revenue: $6.7B (2025) → $11B+ by 2030
- Gross margin: ~14% → ~22%
- EPS: potentially tripling by 2030
- Advanced packaging as primary growth engine
(Globe and Mail/press release, May 21, 2026) From 2026-05-26-autoresearch-amkr-cowos-advanced-packaging-q1-2026.
Price snapshot
- Price (May 6, 2026): $77.22 — +33.5% after AI packaging role was highlighted
- Analyst consensus: Buy; PTs $64.50 (conservative) to $90.00 (most recent upgrade)
- YTD context: The +33.5% single-move re-rating changes risk/reward vs. the original "cheaper entry point" framing in the hypothesis
From 2026-05-26-autoresearch-amkr-cowos-advanced-packaging-q1-2026.
TSMC partnership (named — Arizona, not 2026 Taiwan overflow)
On 2026-06-16 tsmc and Amkor announced a 10-year agreement: "a collaboration framework for TSMC to procure from Amkor advanced packaging and testing services." TSMC SVP / deputy Co-COO Kevin Zhang: "We are pleased to enter into this Agreement with our partner Amkor… We have a long history of experience working with Amkor globally in advanced packaging." Geography in the release is Arizona (Peoria next to Phoenix fabs), continuing the 2024-10-03 MOU. This is the first-party TSMC-named confirmation the May question wanted — as a US procurement framework, not a Taiwan CoWoS wafer contract. From 2026-08-17-autoresearch-amkor-cowos-overflow.
Engel on the Q2 call: the TSMC and NVIDIA announcements "are not unique to the U.S. supply chain as we have several Asia-based agreements" and Asia capacity discussions are "building a high level of confidence in our long-term loading in our Asia facilities" — qualitative, no wafer count. From 2026-08-17-autoresearch-amkor-cowos-overflow.
NVIDIA $1.5B Arizona prepayment
On 2026-07-23 Amkor announced a multi-year nvidia partnership: $1.5B advanced-packaging and development agreement. NVIDIA provides a prepayment for US capacity expansion. Debora Shoquist (NVIDIA EVP Operations) named Amkor on the record. Engel: cash "received in 2027" and returned as US services over 5 to 10 years. Complements the Asia footprint; not a TSMC overflow line. From 2026-08-17-autoresearch-amkor-cowos-overflow.
Arizona / Peoria / CHIPS
- Oct 6, 2025 groundbreaking: $7B campus, first building mid-2027, production early 2028. From 2026-08-17-autoresearch-amkor-cowos-overflow.
- NIST CHIPS page: up to $407M direct funding; ~14,500 wpm / 3.7M units/month; mass production "end of 2027." From 2026-08-17-autoresearch-amkor-cowos-overflow.
- Q2 2026: Phase 1 "fully committed." Songdo (Korea) new assembly/test building on schedule for year-end; SiP moving Korea → Vietnam to free Korea for computing. From 2026-08-17-autoresearch-amkor-cowos-overflow.
- The May "H2 2026 Arizona ramp" is late. CHIPS-adjacent incentives are confirmed.
Forward catalysts
- Q3 2026 print: does computing hold the ~+30% sequential guide and GM 18.5–19.5%?
- 2027: NVIDIA prepayment lands; Peoria tools / end-2027 production gate
- Any first-party TSMC disclosure of Taiwan CoW volumes to Amkor (still missing)