ASE Technology Holding News

TAIEX swung from a soft open to +399 points (46,955), recapturing its 5-day MA as TSMC (2330) rose over 1% toward NT$2,500 and MediaTek (2454) jumped ~3% to instantly fill its ex-dividend gap. Co-packaged optics (CPO) concept stocks dominated the gainers board with multiple names hitting or approaching limit-up on renewed AI-networking demand sentiment. In contrast, PCB names were broadly weak, with Unimicron (3037) sliding near the half-limit and breaking below its quarterly (200-day) moving average.

Why it matters: Intraday market open summary with sector rotation signals (CPO surge vs. PCB weakness) and key large-cap price milestones; informative for sentiment but no discrete stock-moving corporate event.

Mega Investment Trust's Taiwan Wafer Manufacturing ETF (00913-TW) returned 128.49% year-to-date through July 3, 2026, ranking first among all non-leveraged ETFs in Taiwan as AI-driven chip demand lifted constituent stocks including TSMC, UMC, Vanguard Semiconductor, MediaTek, and ASE Technology. WSTS now projects the global semiconductor market will breach the $1 trillion mark for the first time ever. Mega recommends pairing 00913 with its international chip ETF 00911 (holdings: NVIDIA, AMD, Micron, Broadcom, Intel) as a 'dual-tower' strategy to capture both US design leadership and Taiwan manufacturing dominance across the AI supply chain.

Why it matters: Sector-wide positive demand signal anchored by the WSTS $1T forecast and strong ETF performance data, but no specific capex commitment, named contract, or earnings revision for individual constituent stocks.

TSMC (2330) opened sharply lower after the Philadelphia Semiconductor Index tumbled 5%+ on July 2 and TSMC ADR fell 2.27%, dragging the TAIEX down over 800 points intraday before shipping, petrochemical, and textile sectors staged a 900-point reversal. The index closed barely positive at 46,780.62 (+36 pts, +0.08%) on NT$1.02T in turnover, posting a weekly gain of 2,209 pts. Among semiconductor names, MediaTek dropped 3%+ and ASE slid 5%+, while Delta Electronics surged nearly half a limit-up and UMC gained 3%.

Why it matters: Daily market wrap with notable semiconductor underperformance driven by US semi-index spillover, but no new capex, contract, or earnings disclosures to qualify as a stock-moving fundamental event.

Fubon Securities chairman Chen Yi-guang raised his 2026 Taiwan-listed earnings forecast to NT$6.83T (~$212B), with electronics/AI profit growth projected at ~60% YoY, while warning that H2 will replace H1's broad-based 17,000-point rally with volatile stock rotation. He introduced the 'VOLATILE' stock-selection framework centred on TSMC supply chain, advanced packaging, optical/AI-glasses components, LEO satellites, industrial-automation AI, and ETFs. Recent pullbacks in memory and MLCC are framed as healthy sector rotation—not fundamental deterioration—with a Davis Double Play (earnings + valuation re-rating) expected for passive components, PCB, and CPU as AI chips evolve from Blackwell toward Rubin-generation demand.

Why it matters: This is a strategist's H2 market outlook with named sector themes and a profit forecast upgrade, but lacks a specific corporate event (capex, contract, earnings release) that would directly move individual stocks.

Taiwan's TAIEX gained 893 points (+1.94%) to close at 47,019, completing a three-session, 2,447-point surge through 45K/46K/47K resistance levels on NT$1.3T volume. TSMC (2330) led with +3.94% to NT$2,505, while ASE (3711), MediaTek (2454), Delta (2308), and UMC (2303) rose 2%+; Walsin Tech (2492) and passive-component peers surged over half-limit. Chinese NOR Flash supplier GigaDevice warned that product prices have hit historical highs and face significant downside — dragging Winbond (2344) and Nanya Tech (2408) both down over half a limit stop.

Why it matters: A broad daily market-wrap combining a momentum rally, an actionable NOR Flash pricing warning (directly bearish for tracked TW memory names), and passive-component surge — multiple sector signals but no single high-conviction capex, contract, or earnings event.

Apple's A20 Pro is rumored to adopt WMCM (Wafer-level Multi-Chip Module) packaging that places DRAM beside — not atop — the application processor die, a thermal architecture conceptually similar to Samsung's Exynos 2700 FOWLP-SbS design. The key differentiator is that Apple routes heat via direct die-to-vapor-chamber contact, whereas Samsung's Heat Path Block (HPB) covers both die and DRAM simultaneously. The chiplet-like modularity of WMCM would give Apple greater flexibility in integrating CPU, GPU, and neural engines, reinforcing the industry pivot from pure process-node scaling toward advanced packaging and thermal optimization.

Why it matters: A product-roadmap rumor with meaningful advanced-packaging supply-chain implications for TSMC and mobile DRAM suppliers, but no confirmed order, capex commitment, or earnings event to qualify as high.

Taiwan's TAIEX closed at 44,999 on June 29, gaining 428 points but failing the 45,000 threshold as hawkish Fed signals, a 4.07% weekly pullback in U.S. equities, and Middle East tensions drove profit-taking after record highs. AllianceBernstein Taiwan deputy GM Lin Bing-Kui argues the correction is a healthy consolidation within a bull trend, recommending a shift from index-chasing to fundamentals-driven names across AI infrastructure—advanced-process foundries, ABF substrates, HPC packaging, and semiconductor equipment. Foreign investors are structurally repositioning rather than fully exiting, concentrating in higher-visibility AI supply-chain names and select traditional-industry companies pivoting to automotive electronics and industrial applications.

Why it matters: Broad market strategy commentary from an asset manager with no company-specific earnings, capex, or contract announcements; provides sector rotation signals but not a direct stock-moving catalyst.

Foreign investors sold a record NT$177.4B (~US$5.5B) of Taiwan stocks Wednesday, including 38,400 lots of TSMC, pushing June net selling to NT$413.2B. Separately, Taiwan's May export orders hit US$89.48B (+47.2% YoY, 16th straight monthly gain) on AI/HPC/cloud demand, while ASE COO Tien Wu signaled packaging price hikes are inevitable to reflect rising material costs.

Why it matters: ASE COO's explicit pricing guidance is a stock-moving signal for OSAT pricing power, layered with record foreign outflows hitting TSMC and bullish export-order data.

TAIEX closed +211.66 pts at 46,255 after a late sell program in TSMC (-NT$30 to NT$2,390, 11.6k lots dumped on the close) capped a session that opened up nearly 750 pts. Micron's beat and its signal that memory tightness extends past 2027 lifted Nanya Tech +7%+, while strong Qualcomm results drove ABF substrate names Kinsus, Nan Ya PCB and Unimicron limit-up through NT$1,000; passives led by Yageo +7% rallied on Taiyo Yuden's surge and price-hike themes.

Why it matters: Daily market wrap covering sector moves driven by Micron/Qualcomm earnings and memory/ABF/passives strength — supply-chain read-through rather than a single stock-moving catalyst.

JEDEC approved the new SPHBM4 ('Standard Package' HBM4) memory standard on the 21st, retaining HBM4-class bandwidth while ditching costly advanced packaging by cutting signal pins to one-fifth and quadrupling signal speed to 32 Gbps at 16 GHz. The standard is positioned to pair with future glass-substrate packaging (expected to commercialize around 2030), potentially easing HBM supply constraints and reducing reliance on advanced packaging for SK hynix, Samsung, Micron and OSAT/substrate players.

Why it matters: Industry standard ratification with roadmap implications for HBM cost structure and advanced packaging demand, but no immediate revenue or contract impact on specific names.

TSMC has reportedly trimmed 28nm wafer output by more than 25% since early 2026 to reallocate capacity toward advanced nodes (3nm/2nm) amid surging AI-driven demand. The mature-node pullback tightens supply for 28nm customers (display drivers, MCUs, RF) and signals TSMC's continued prioritization of leading-edge capex, with knock-on pricing implications for UMC, SMIC, and other mature-node foundries.

Why it matters: TSMC-specific capacity reallocation with quantified 25%+ cut at a major node directly affects foundry pricing dynamics and confirms advanced-node capex prioritization.