The Rerouted Order Book — The Three Sessions When HBM-Choked Samsung and SK Hynix Sent Winbond to Limit-Up and Team Group to NT$53 H1 EPS

The Story Beneath the Headline

Taiwan's TAIEX closed +266 points (+0.6%) at 43,386 on Aug 3, the only Asian major in the green as Japan fell more than 1% and the KOSPI corrected 5%+ (cnyes). What matters, though, is the composition behind the index. MediaTek (2454) surged 9.99% to limit-up; ASE (3711), Sigurd, and passive-component names joined the limit-up club — while TSMC (2330) fell 2.27% on Intel-packaging-related headwinds (cnyes).

The MediaTek and ASE limit-ups are last week's story. The genuinely new signal is the second tier that quietly walked in behind them: Winbond (3105), Macronix (2337), Team Group (4967), and Etron — Taiwan's 'legacy memory' and module names — all printed limit-ups, all-time highs, or record EPS in the same tape.

The Mechanics of the Reroute

Winbond locked limit-up at NT$143 on Aug 3. Two triggers converged: an imminent analyst day and reports that 'AI memory orders are being rerouted to Winbond' (Google News). The mechanic here is unambiguous — as SK Hynix's latest earnings confirmed, DRAM capacity is being structurally reallocated toward HBM, which is squeezing conventional DRAM supply and putting Micron at a competitive disadvantage (Google News).

The residual demand is flowing to Taiwan and China niche DRAM/NAND lines. The prints agree: DDR5 16Gb spot cleared $51.33 by Aug 4; Kioxia disclosed +70% QoQ NAND ASP and net profit up 45× (+4,502%) in Q2 FY2026 (finance.technews.tw). Apple explicitly flagged surging memory costs on its call, and the MacBook Air took two $100 price hikes because of LPDDR supply constraints (technews.tw).

The Module Arbitrage

The purest beneficiary of the reroute is Team Group (4967): H1 EPS NT$53.44, Q2 net income NT$2.41B — YoY +21,827%. That isn't a typo; it is what the company printed (cnyes). Recall the module-maker model — buy DRAM/NAND at low inventory cost, sell finished modules at spot. The wider HBM crowds out standard DRAM, the wider that arbitrage window opens.

Macronix (2337) locked limit-up at NT$110.5 in the same session; its 1H 2026 revenue has already exceeded all of 2025. Even NOR flash — a niche category — has been fully re-rated in this cycle (Google News). Etron posted Q2 revenue +79% QoQ and EPS NT$4.81 (Google News).

Pricing Power Has Reached the Materials Tier

What is worth flagging: this pricing power has already climbed the stack. Chung-Shun (7763) announced most product prices will rise 10–20% starting Q3, alongside a year-end IPO (cnyes). Topco Scientific (5434) crossed NT$20B in quarterly revenue for the first time and printed a record H1 EPS of NT$14.79 (finance.technews.tw). Linde committed $1.8B for industrial-gas supply to US and Taiwan fab expansions (technews.tw).

The memory-cycle inflation is now climbing into wet chemicals, materials distribution, and industrial gases. The margin pressure that foundries absorb now shows up first in this tier — worth watching before it prints in CoWoS or N2 margins next quarter.

Positioning Implications

Primary reroute beneficiary — Winbond (3105) anchors this note for three reasons. First, it is Taiwan's only listed pure-play with conventional-DRAM exposure sitting on the opposite side of the HBM concentration trade. Second, it went limit-down last week on the CXMT IPO scare and limit-up this week on the reroute — with the analyst day still ahead as a catalyst. Third, the MediaTek/TSMC headlines are still absorbing the flow, leaving Winbond's re-rating relatively unpriced.

Stealth arbitrage — Team Group (4967) is the cleanest cycle beneficiary in the region. An H1 EPS of NT$53.44 is a number no Taiwanese large-cap semiconductor name will come anywhere near. It sits outside the tracked universe, so exposure requires individual sizing.

Materials tier — Topco Scientific and Chung-Shun now qualify as the third-tier beneficiary group of this cycle. The counterpoint: every price hike here compresses foundry margin, so the same signal that lifts these names is a leading indicator of margin pressure at TSMC and UMC.

Michael Burry's expanded NVIDIA puts and Micron shorts (finance.technews.tw) sit on the same map — the shadow of HBM concentration is the collapse of the conventional-DRAM/NAND cost base for every set-maker downstream. In the meantime, Taiwan's legacy memory names are absorbing the residual demand at the cycle's highest print. Three sessions have now confirmed the structure in a single tape.

Key Sources: - Winbond Hits Limit-Up at NT$143 on AI Memory Order Transfer (Google News, 2026-08-03) - Team Group Q2 EPS NT$26.47, H1 EPS NT$53.44 (cnyes, 2026-08-03) - Macronix 1H 2026 Revenue Tops Full-Year 2025 (Google News, 2026-08-02) - Kioxia Q2 Net Profit Surges 45x on NAND Boom (technews, 2026-08-03) - Chung-Shun Raises Electronic-Material Prices 10-20% from Q3 (cnyes, 2026-08-03) - plus 6 more