Trading-day snapshots this week: 2026-10-13 ~ 2026-10-16 (4 sessions). The 244 companies tracked were worth a combined $22.33 trillion, -7.50% from the week's start (market-cap weighted).
| Segment | Cos. | Combined cap | Week |
|---|---|---|---|
| GPU & AI Chips | 21 | $9.40T | -4.51% |
| Memory / HBM | 15 | $3.21T | -14.46% |
| Semiconductor Equipment | 35 | $2.35T | -9.71% |
| Foundry & OSAT | 17 | $2.31T | -5.33% |
| Servers & ODM | 24 | $923.3B | -12.43% |
| Networking & Switching | 12 | $869.5B | -6.77% |
| Data Centers & Cloud | 19 | $744.5B | -4.18% |
| PCB & CCL | 27 | $515.2B | -7.46% |
| Optical Modules & Devices | 23 | $486.8B | -9.63% |
| EDA & Semiconductor IP | 7 | $462.6B | -5.32% |
| Copper Interconnect & Cables | 16 | $448.2B | -7.20% |
| Power Supply | 12 | $398.5B | -9.31% |
| Liquid Cooling & Thermal | 16 | $209.8B | -9.15% |
Best segment: Data Centers & Cloud (-4.18%); worst: Memory / HBM (-14.46%).
Top 10 gainers
| Company | Mkt | Segment | Market cap | Week |
|---|---|---|---|---|
| Guangdong Goworld | SZ | PCB & CCL | $2.3B | +27.38% |
| Ericsson | US | Networking & Switching | $34.8B | +14.30% |
| Suntak Technology | SZ | PCB & CCL | $4.3B | +12.93% |
| Nanya New Material Technology | SH | PCB & CCL | $9.6B | +9.67% |
| Shanghai PNC Process Systems | SH | Semiconductor Equipment | $1.4B | +8.39% |
| Hwatsing Technology | SH | Semiconductor Equipment | $18.0B | +6.28% |
| WUS Printed Circuit | SZ | PCB & CCL | $33.3B | +5.89% |
| Olympic Circuit Technology | SH | PCB & CCL | $4.4B | +4.39% |
| NAURA Technology | SZ | Semiconductor Equipment | $66.0B | +3.65% |
| Xingsen Technology | SZ | PCB & CCL | $9.2B | +2.70% |
Top 10 decliners
| Company | Mkt | Segment | Market cap | Week |
|---|---|---|---|---|
| Kioxia Holdings | JP | Memory / HBM | $133.9B | -26.46% |
| Hanmi Semiconductor | KR | Memory / HBM | $13.3B | -24.67% |
| ISC Co | KR | Semiconductor Equipment | $2.2B | -24.65% |
| SK Hynix | KR | Memory / HBM | $675.0B | -22.81% |
| Jusung Engineering | KR | Semiconductor Equipment | $6.8B | -21.11% |
| Ibiden | JP | PCB & CCL | $33.0B | -20.03% |
| Lenovo Group | HK | Servers & ODM | $42.5B | -19.67% |
| Lasertec | JP | Semiconductor Equipment | $23.4B | -19.27% |
| SCREEN Holdings | JP | Semiconductor Equipment | $16.3B | -18.05% |
| Dell Technologies | US | Servers & ODM | $301.0B | -17.92% |
The top-10 lineup was unchanged from the week's start.
Data may be quoted freely with attribution.
As of 2026-10-16, the 244 AI-compute companies tracked were worth a combined $22.33 trillion, -7.50% on the week (2026-10-13~2026-10-16). — AI Compute Value Chain Market Cap (https://shizhibang.com/weekly/2026-W42/)As of 2026-10-16, the 244 AI-compute companies tracked were worth a combined $22.33 trillion, -7.50% on the week (2026-10-13~2026-10-16). — [AI Compute Value Chain Market Cap](https://shizhibang.com/weekly/2026-W42/)