Silicon Nexus

TAIEX opened down over 500 points to 44,185 after Tuesday's 1,200-point rebound, with TSMC (2330) slipping below NT$2,300 and Hon Hai (2317), Delta (2308) and ASE (3711) off 2-3%. Passive components and optical names led the recovery: Yageo (2327) hit a second straight limit-up on Philippines-quake supply fears, and Largan (3008, not tracked) along with Ability (3019) ramped — a tape-driven sector rotation rather than a fundamental catalyst.

Why it matters: Broad index/sector recap with a passive-component supply scare; moves the tape but no company-specific catalyst for tracked KR names.

TSMC has secured key materials and consumables for its next-gen CoPoS (Chip-on-Panel-on-Substrate) packaging and entered the core line/equipment validation phase at subsidiary VisEra's Longtan fab, with pilot production starting June 2026 and mass production targeted at the Chiayi fab by end-2028. The square-panel interposer lifts area utilization from ~65% to ~95% (e.g., 9-16 Nvidia B200 dies per panel vs. 4 on a 12-inch wafer), aimed at relieving CoWoS bottlenecks where order fill rates remain near 80% despite capacity expanding to 130k wpm by end-2026.

Why it matters: TSMC officially confirmed CoPoS pilot line buildout with concrete site (Longtan), timeline (June 2026 pilot, end-2028 mass production at Chiayi), and a named Taiwan equipment supply chain that stands to win orders.

ASE Technology (3711-TW) reported May revenue of NT$63.0B (+1.3% MoM, +28.6% YoY), the highest in 43 months, with packaging/test/materials at NT$42.2B (+37.9% YoY). The company guided 2026 advanced packaging (LEAP) revenue above US$3.5B (at least doubling YoY) and full-year capex of US$8.5B, while developing 600x600mm panel-level and 310x310mm automated lines for AI advanced packaging — a clear positive read-through for OSAT and AI back-end supply chain.

Why it matters: Record monthly revenue, doubled advanced-packaging guidance, and US$8.5B capex commitment are concrete stock-moving datapoints for ASE and the broader AI back-end supply chain.

Taiwan's FSC said listed companies' cumulative overseas investment (ex-China) reached NT$11.35T in Q1 2026, up NT$362.7B QoQ — the largest same-period increase on record — driven by AI demand and supply-chain de-risking, with semiconductors the biggest contributor for both TWSE and TPEx names. Overseas investment profit hit a record NT$296.1B (+NT$54.4B YoY), while new investment into China continues to slow, signaling a structural shift in Taiwanese capex away from the mainland.

Why it matters: Macro/regulator-level capital flow data showing AI- and semi-led overseas capex shift away from China — sector-relevant context for TW semi names but no single-stock catalyst.

Taiwan is studying tighter AI chip export controls aligned with US rules, potentially making unauthorized shipments of high-end AI chips or AI servers to China a criminal offense for the first time. Restrictions could expand beyond Huawei/SMIC to all China-based customers and apply to compute above a performance threshold, directly affecting TSMC and Taiwan's AI server supply chain that assembles Nvidia-based systems.

Why it matters: Named policy action targeting AI chip exports with criminal liability directly impacts TSMC and Taiwan's Nvidia AI server supply chain, a clear stock-moving regulatory event.

Delta Electronics (2308) posted May revenue of NT$58.96B (+43.6% YoY, +0.5% MoM), the second-highest monthly figure on record, with 5M YTD revenue at NT$277B (+38% YoY). Power & components (54%) and infrastructure (33%) drove growth as AI datacenter power and thermal demand remained the primary engine; management guided to muted seasonality and YoY margin expansion as AI product mix rises. Shares closed +7.1% at NT$2,415, lifting market cap back above NT$6T to NT$6.27T.

Why it matters: Hard monthly revenue print with +43.6% YoY growth, explicit AI datacenter attribution, and guidance on muted seasonality plus YoY margin expansion — a clear stock-moving earnings data point reflected in the +7.1% close.

Catcher Technology (2474-TW) reported May revenue of NT$918M (~US$28M), down 4.3% MoM and 48.3% YoY, with 5M YTD revenue of NT$5.65B (~US$174M), down 26% YoY, as low-end notebook launches cannibalized mid/high-tier mix and brands diverted scarce chips to phones. Management guided new businesses (medical, semi equipment, aerospace/drones, AI servers) to deliver double-digit revenue contribution this year, with server revenue — as a member of NVIDIA's MGX ecosystem supplying structural components — targeted at ~20% of 2026 sales and expected to surpass notebooks within three years.

Why it matters: Monthly revenue print with weak headline numbers but materially positive disclosure on NVIDIA MGX server ramp — informative for the AI server supply chain rather than an immediate stock-moving catalyst.

Compal (2324-TW) posted May revenue of NT$70.46B, up 22.3% YoY but down 2.1% MoM, with YTD revenue of NT$343.75B (+7.7%). Management guided double-digit growth in server revenue for both Q2 and Q3, lifting server's full-year mix toward 10% of total sales, while Q2 PC shipments are expected to grow low single digits despite CPU/memory component shortages deferring some orders into Q3.

Why it matters: Monthly revenue print with qualitative server guidance — informative for the AI server supply chain but not a discrete stock-moving event like a major contract or earnings beat.

TWSE jumped 1,201 points (+2.8%) to 44,704 on 2026-06-09, but foreign investors net-sold NT$91.7B (~US$2.9B) — the 8th-largest foreign sell on record — extending a 4-day streak totaling NT$343.9B, including 44,500 lots of TSMC. Foreign flows rotated out of low-priced names and US Treasury ETFs into financials, while domestic investment trusts trimmed UMC (2303) by 67,000 lots against dealer dip-buying.

Why it matters: Market-flow story affecting TSMC and UMC as foreign-selling targets, but it's daily fund-flow data rather than a stock-specific catalyst — directionally informative for TW semi positioning but not a standalone event.