# SOXX ETF Architecture: Portfolio Rules and Exposure

Source: https://historyofmarket.com/semi/semi-soxx/
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 › SOXX ETF Architecture: Portfolio Rules and Exposure

**SOXX ETF Composition** — Constituent weightings, cap-tier rebalancing constraints, and asset breakdown of the iShares Semiconductor ETF.

Figure: Plate III.11 · iShares Semiconductor ETF (SOXX) tracks the ICE Semiconductor Index, featuring an 8% single-stock cap and quarterly rebalancing to maintain balanced industry diversification.

## Latest Snapshot

- **Data file updated** — 2026-11-13
- **Constituents** — 30
- **P/E** — 32.8

## What this page answers

The top 10 holdings in SOXX aggregate to 61.6% of total index capitalization. Investing in a cap-weighted index functionally concentrates the vast majority of portfolio exposure in this handful of mega-cap leaders.

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

## SOXX — all 30 constituents, ranked by index weight

| # | Ticker | Company | Weight | Cumulative |
| --- | --- | --- | --- | --- |
| 1 | AMD | Advanced Micro Devices | 9.25% | 9.3% |
| 2 | INTC | Intel | 8.32% | 17.6% |
| 3 | NVDA | NVIDIA | 7.95% | 25.5% |
| 4 | MU | Micron Technology | 7.64% | 33.2% |
| 5 | AVGO | Broadcom | 7.31% | 40.5% |
| 6 | MRVL | Marvell Technology | 4.53% | 45.0% |
| 7 | ADI | Analog Devices | 4.40% | 49.4% |
| 8 | TXN | Texas Instruments | 4.28% | 53.7% |
| 9 | QCOM | Qualcomm | 4.12% | 57.8% |
| 10 | KLAC | KLA Corporation | 3.84% | 61.6% |
| 11 | LRCX | Lam Research | 3.65% | 65.3% |
| 12 | AMAT | Applied Materials | 3.65% | 68.9% |
| 13 | MPWR | Monolithic Power Systems | 3.32% | 72.3% |
| 14 | NXPI | NXP Semiconductors | 3.24% | 75.5% |
| 15 | TSM | Taiwan Semiconductor Mfg. | 3.13% | 78.6% |
| 16 | TER | Teradyne | 2.91% | 81.5% |
| 17 | SKHY | SK Hynix | 2.69% | 84.2% |
| 18 | ALAB | Astera Labs | 2.28% | 86.5% |
| 19 | MCHP | Microchip Technology | 2.22% | 88.7% |
| 20 | CRDO | Credo Technology | 1.63% | 90.4% |
| 21 | ON | ON Semiconductor | 1.58% | 91.9% |
| 22 | ASML | ASML Holding | 1.50% | 93.4% |
| 23 | ENTG | Entegris | 1.23% | 94.7% |
| 24 | TSEM | Tower Semiconductor | 1.18% | 95.9% |
| 25 | MTSI | MACOM Technology Solutions | 1.06% | 96.9% |
| 26 | ASX | ASE Technology Holding | 0.93% | 97.8% |
| 27 | CBRS | Cerebras Systems | 0.65% | 98.5% |
| 28 | UMC | United Microelectronics | 0.63% | 99.1% |
| 29 | ARM | Arm Holdings | 0.44% | 99.6% |
| 30 | STM | STMicroelectronics | 0.40% | 100.0% |

Complete record (30 rows). Raw dataset: https://historyofmarket.com/api/semi/soxx.json

## Data & Source

[GET /api/semi/soxx.json](https://historyofmarket.com/api/semi/soxx.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

- [PHLX Semiconductor Index Constituent Breakdown by Sub-Industry](https://historyofmarket.com/semi/semi-composition/)
- [SMH ETF Holdings and Weight Distribution](https://historyofmarket.com/semi/semi-smh/)
- [The Memory Cycle: Global Oligopoly and HBM Leadership](https://historyofmarket.com/semi/semi-memory/)

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