This Week in the Chain · Jun 23, 2026

This Week in the Chain — Jun 23, 2026

What changed in the semiconductor & AI supply chain since Jun 22, 2026: Wiwynn +189.0%, Haesung DS -16.8%. Auto-generated from the wafergraph dataset — every figure computed, no editorializing.

Top gainers

Largest market-cap moves since Jun 22, 2026 (332 priced companies moved ≥1%). Figures are live market caps; moves reflect price action plus any share-count updates.

  1. 1Wiwynn$28.5B → $82.4B+189.0%
  2. 2IBM$230.7B → $245.7B+6.5%
  3. 3Synopsys$86.9B → $91.6B+5.4%
  4. 4Nan Ya PCB$17.6B → $18.6B+5.2%
  5. 5Silan Microelectronics$11.0B → $11.6B+4.8%
  6. 6Nexchip Semiconductor$15.7B → $16.4B+4.7%
  7. 7Iwatani$2.6B → $2.7B+4.6%
  8. 8MPI Corporation$19.9B → $20.7B+4.0%

Source: wafergraph live market caps (Yahoo Finance × SEC shares). As of 2026-06-23.

Top decliners

  1. 1Haesung DS$950M → $790M-16.8%
  2. 2DNF$120M → $100M-16.7%
  3. 3Telechips$120M → $100M-16.7%
  4. 4Furukawa Electric$25.3B → $21.4B-15.5%
  5. 5LB Semicon$210M → $180M-14.3%
  6. 6Hanmi Semiconductor$18.6B → $16.0B-14.2%
  7. 7Nepes$510M → $440M-13.7%
  8. 8Eugene Technology$2.8B → $2.4B-13.4%

Source: wafergraph live market caps. As of 2026-06-23.

Coverage changes

How the dataset's coverage shifted versus the last snapshot.

-$975.3B
Tracked market cap Δ

Source: wafergraph dataset. As of 2026-06-23.

Why it matters

Wiwynn sits in Distribution & Misc. Watch this segment for second-order supply-chain effects.

Segment context from the wafergraph taxonomy.

Data coverage: 402/565 companies priced; 393 with SEC financials. Market data as of 2026-06-23; report generated 2026-06-23. Figures are computed from the wafergraph dataset — educational/informational only, not investment advice.

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