# PHLX SOX · 30 components — PHLX Semiconductor Index Constituent Breakdown by Sub-Industry

Source: https://historyofmarket.com/semi/semi-composition/
Language: en
License: data CC BY 4.0, text © History of Market — cite "History of Market (historyofmarket.com)" and link the source page. Terms: https://historyofmarket.com/license/
Section: History of Market › Semiconductors › PHLX Semiconductor Index Constituent Breakdown by Sub-Industry

**SOX Constituent Architecture** — Industrial distribution of thirty constituents across fabless design, foundry manufacturing, and equipment fabrication.

Figure: Plate III.5 · Categorizing thirty constituents across Fabless design, foundry, capital equipment, memory, analog, and IDMs, highlighting the global division of labor underpinning the chip ecosystem.

## Latest Snapshot

- **Data file updated** — 2026-10-21

## What this page answers

This static page is built to answer searches for PHLX SOX · 30 components. It summarizes the live dataset behind the PHLX Semiconductor Index Constituent Breakdown by Sub-Industry panel and links to the full interactive chart.

The data is refreshed by the History of Market pipeline and published as a stable JSON endpoint for research, citation, and AI-agent use.

## Data & Source

[GET /api/semi/composition.json](https://historyofmarket.com/api/semi/composition.json) — Canonical dataset endpoint.

Exchange closing prices · Company filings · Robert Shiller · FRED · NBER.

## FAQ

### Where does this data come from?

History of Market combines public market and macro datasets — exchange closing prices, company filings, Robert Shiller, FRED, NBER, and the UBS Global Investment Returns Yearbook (Dimson–Marsh–Staunton). The exact endpoint for this panel is linked below.

### How often is it updated?

Daily-tier datasets refresh after the U.S. market close, with a broader weekly refresh each weekend. The timestamp shown on this page comes from the JSON payload.

### Can I use the data?

Yes, for research and education with attribution to History of Market. Upstream data sources retain their own terms.

## Related charts and reading

- [The Memory Cycle: Global Oligopoly and HBM Leadership](https://historyofmarket.com/semi/semi-memory/)
- [SOXX ETF Architecture: Portfolio Rules and Exposure](https://historyofmarket.com/semi/semi-soxx/)
- [SOXX vs. SMH: Divergent Concentration Profiles in Semiconductor ETFs](https://historyofmarket.com/semi/semi-soxx-compare/)

---

Data: https://historyofmarket.com/api/semi/composition.json
Machine index: https://historyofmarket.com/llms.txt
