This Week in the Chain — Jul 30, 2026

Top gainers

Since Jul 27, 2026, 380 companies priced at least 1% away from the prior snapshot.

1. 1Lingsen Precision$30M → $40M+33.3%
2. 2Avantor$8.1B → $9.7B+20.6%
3. 3Celestica$34.1B → $37.8B+10.8%
4. 4Ambarella$2.8B → $3.0B+7.4%
5. 5Schneider Electric$169.8B → $182.2B+7.3%
6. 6Sony Semiconductor Solutions$128.2B → $137.5B+7.3%
7. 7American Tower$78.1B → $83.5B+7.0%
8. 8Tencent$508.5B → $541.5B+6.5%

Source: wafergraph live market caps (Yahoo Finance × SEC shares). As of 2026-07-30.

Coverage changes

Coverage, compared with Jul 27, 2026.

Source: wafergraph dataset. As of 2026-07-30.

Top decliners

1. 1Jusung Engineering$4.7B → $3.1B-32.8%
2. 2Nepes$280M → $190M-32.1%
3. 3Daeduck Electronics$3.8B → $2.7B-30.2%
4. 4LG Innotek$9.9B → $7.0B-29.2%
5. 5Amkor Technology$14.9B → $10.6B-28.8%
6. 6PSK Inc$2.9B → $2.0B-28.8%
7. 7Foosung$730M → $520M-28.8%
8. 8GlobalWafers$15.8B → $11.5B-27.3%

Source: wafergraph live market caps. As of 2026-07-30.

Why it matters

Lingsen Precision sits in OSAT — Outsourced semiconductor assembly and test (OSAT) companies package finished dies into the chips and modules that go into end products. As advanced packaging — chiplets, CoWoS, HBM stacking, and fan-out technologies — moves from niche to mainstream, OSATs have become strategic partners rather than commodity handlers. ASE Technology (which includes SPIL) is the world's largest OSAT; Amkor is a major player in advanced packaging in the Americas and Korea. TSMC and Samsung also offer advanced packaging in-house, competing directly with OSATs at the leading edge. 22 companies in the wafergraph dataset sit in OSAT.

Segment context from the wafergraph taxonomy.