The Week the Invoice Skipped the Leading Edge — Yageo's Full-Line Hike, Mature-Node's 5–15% ASP, and the Probe-Card Cycle Rotated Taiwan's Q3 Pricing Power to the Middle

Lede — The Q3 Hike Star List Doesn't Include TSMC

The most interesting event across the Taiwan semiconductor supply chain over the past three days did not come out of TSMC. A Cnyes headline on July 1 captured it cleanly: "Q3 Price-Hike Stars Are Yageo, Walsin, Unimicron & Nan Ya PCB — Not TSMC." That sentence is the tightest possible summary of the margin redistribution that unfolded this week. If leading-edge foundry and HBM monopolized the pricing narrative for the last four quarters, this was the first week where the relay baton was finally passed to the middle of the stack.

Passives — Yageo's Full-Line Hike and a Post-Split High Above NT$1,200

Yageo (2327) notified customers on July 1 of simultaneous price increases across all three capacitor categories — MLCC, tantalum, and aluminum electrolytic. Select high-voltage and automotive MLCC lines carry hikes of 30–50%+, and the stock cleared its post-split all-time high above NT$1,200. Walsin (2492) is preparing similar increases in high-voltage MLCC. These two names are the axis around which Taiwan's passive-component margin map is being redrawn, and — crucially — this is not a single-line spot squeeze. It is the first coordinated move to raise all three capacitor categories at once, which is a very different cycle signature.

Materials — Nan Ya Plastics' Limit-Up at NT$183; King Board Copper Foil's NT$3.52 EPS

On the materials layer, Nan Ya Plastics (1303) hit a daily limit-up at a new record NT$183 on July 1, with trust funds net-buying 88,200 shares over eight consecutive sessions — a clear signal institutions have already re-rated the company's AI-materials pivot. One layer upstream, King Board Copper Foil (8358) posted cumulative Jan–May 2026 EPS of NT$3.52, confirming CCL raw-material margins are already in a hike phase. HVLP4-grade foil for AI servers, 800G switches, and automotive CIS is going into full ramp from Q3. Nan Ya PCB (8046) is the only universe-eligible proxy for this flow and the only name from the Cnyes "Q3 Hike Star" quartet that sits inside the ticker universe.

Mature Nodes — TrendForce Confirms 5–15% ASP, Extended Into 2027

TrendForce reported on June 30 that global 8-inch foundry utilization has recovered to 88% in 2026 and is tracking toward 90% in H2, with blended ASP hikes of 5–15% and the increases expected to extend into 2027. UMC (2303) posted a 31% ten-day rally in late June before the Taiwan Stock Exchange placed it on "disposition stock" status from July 2 through July 15 — a regulatory measure, not a fundamental reversal. VIS (5347) sits on the same beneficiary trajectory. Pricing power that used to be a leading-edge phenomenon has now flowed down to . That is the second signature of the week.