Silicon Nexus

MLCC maker Holy Stone (3026-TW) posted May revenue of NT$1.29B, up 21.3% YoY (-9.6% MoM due to China May Day holiday), marking a 5-year high for the month; YTD revenue reached NT$6.34B (+12.3% YoY). Management cited strong AI power MLCC demand from Nvidia Blackwell, with AI's share of MLCC sales expected to double this year, and flagged Vera Rubin volume ramp from Q4 driving more visible growth in 2027.

Why it matters: Monthly revenue print from a non-universe MLCC supplier with Nvidia Blackwell/Vera Rubin read-through; informative for AI power supply chain but no direct catalyst for tracked TW/KR tickers.

Powerchip (6770-TW) posted May revenue of NT$5.77B (~US$190M), up 14.35% MoM and 58.86% YoY — a 44-month high — driven by AI-led demand for memory and PMIC plus price hikes on driver ICs, PMIC, DRAM and NAND foundry. The company also flagged progress on Si-SiCap with iST (6531), entry into Intel's EMIB advanced packaging supply chain, and a 1P process collaboration with Micron targeting trial production in 1H 2028 and mass production in 2H 2028.

Why it matters: Monthly revenue print with positive operational color (price hikes, Intel EMIB entry, Micron 1P roadmap), but Powerchip is not in the tracked universe and read-through to tracked KR memory names is indirect.

Hiwin (2409-TW) unveiled its first collaboration with Qualcomm at 2026 COMPUTEX, integrating Qualcomm's Dragonwing Q6 edge-AI processors into HIWIN Load Port products for large panel-level packaging (PLP) equipment. The tie-up adds real-time vision, anomaly detection and status feedback to EFEM front-end modules, positioning Hiwin deeper into the smart semiconductor equipment supply chain as PLP adoption accelerates.

Why it matters: Product/partnership showcase at COMPUTEX expanding Hiwin's semi equipment positioning, but no order size, customer name or financial impact disclosed.

FTSE announced the 0056 ETF rebalance, adding 5 names including memory trio Nanya (1303), Nanya Tech (2408) and Winbond (2344), alongside Chung-Hsin Electric (1513) and Far EasTone (4904), while removing 4 legacy/traditional industry stocks. Changes take effect after the 6/18 close; institutions cite strong 2026 AI earnings outlook and high payout ratios as supportive for index yield. The inclusion is a passive-flow tailwind for Taiwan memory names amid the DRAM upcycle.

Why it matters: Passive ETF inclusion drives mechanical buying flows for Taiwan memory names but isn't a fundamental catalyst; no tracked universe tickers are directly affected.

FTSE's June review of the FTSE TWSE Taiwan 50 Index (tracked by 0050) adds four AI supply-chain names — Nanya PCB (8046), GUC (3443), BizLink (3665) and ZDT (4958) — and removes CSC (2002), Formosa Plastics (1301), Hotai Motor (2207) and KPS (6919), effective after the June 18 close. 0050 has led ETF inflows since COMPUTEX at NT$65.6B (~US$2.1B), pushing AUM past NT$2T (~US$65B), and the FSC's relaxed single-stock cap should further channel flows into large-cap AI leaders.

Why it matters: Index inclusion is a flow-driven event for the named TW names but is a sector/market-structure story rather than a fundamental catalyst, and only Nanya PCB (8046) sits in our tracked universe.

Foreign institutions sold a net NT$82.6B (US$2.6B) on the Taiwan market June 5, extending a 2-day selloff and flipping the weekly tally to net selling of NT$67.3B, while TAIEX fell 606 points to 45,079. Against the broader exit, foreigners aggressively bought UMC (79K lots, 5th straight session) and Yang Ming (40K lots), directly opposing domestic investment trusts which sold 75K lots of UMC. TSMC was trimmed by 17K lots, while Quanta, AUO and Winbond also saw foreign outflows.

Why it matters: Daily fund-flow data showing concentrated foreign buying of UMC against domestic trust selling is a meaningful sentiment signal for foundry names, but it's a flow snapshot rather than a fundamental catalyst.

Taiwan e-paper maker Netronix (6143) showcased 20+ color e-paper signage units (13.3"–75") at Computex 2026, including a new 28.5" curved and 40" high-res signage, plus a MediaTek (2454)-powered color e-reader using E Ink's next-gen Kaleido panel. 2025 revenue hit NT$8.5B (+15% YoY) and 1Q26 revenue reached NT$2B (+25% YoY), both record highs, with color-reader penetration, signage scale-up, and Aplus (6291) fiber exposure to AI datacenters cited as 2026 growth drivers.

Why it matters: Trade show product showcase plus prior-period earnings recap for a non-universe stock; MediaTek mention is a supplier reference rather than a stock-moving event.

UMC (2303-TW) reported May revenue of NT$22.94B, up 1.23% MoM and 17.78% YoY, marking a 43-month high driven by AI-led demand for power management ICs. The foundry guided Q2 wafer shipments up 7-9% QoQ, expects H2 to outperform H1, and plans price hikes in H2 2026 to offset Singapore fab expansion costs and rising material prices.

Why it matters: Concrete earnings data point (43-month revenue high, +17.78% YoY) plus forward Q2 shipment guidance and confirmed H2 price hikes — directly stock-moving for UMC and a positive read-through for the foundry/PMIC supply chain.

TAIEX fell 606 points to 45,070 with intraday low of 44,209 after Broadcom's AI chip guidance disappointed and a Raymond James note warned DRAM/NAND prices may peak mid-2026 and decline through early 2027 on China CXMT/YMTC capacity additions. Memory names including Winbond (2344), Nanya (2408) and Powerchip (6770) hit limit-down, but TSMC chairman Wei reaffirmed 30%+ USD revenue growth in 2026 and AI demand visibility through 2030.

Why it matters: Sector-wide memory sell-off and supply/demand commentary affecting DRAM/NAND outlook, plus TSMC guidance reaffirmation — market color rather than a single stock-moving catalyst.