[2026-W21] SOXX Deep Dive — Late-Cycle Entry into the Semiconductor Supercycle, the Truth Behind 31.4% 5-Year CAGR
Published: 2026-05-19 (Tue) | Series: ETF Deep Dive #001
TL;DR
SOXX (iShares Semiconductor ETF) dominated the market (SPY ~14%) with 5-year CAGR 31.4% and total return +296%, but paid the price of maximum drawdown -35% (2022) and beta 1.77 over the same period. Semi-concentrated structure with top 10 holdings at 61.84%. May issue 4-way debate decision: 38% weight (reduced by 2%p).
① Overview
- Ticker: SOXX | Manager: BlackRock iShares | Expense Ratio: 0.34%
- Index: NYSE Semiconductor Index (modified PHLX 30-stock)
- Strategy: Modified market-cap weighted across 30 US-listed semiconductor stocks. Positioned in the middle ground between SMH (pure market-cap) and XSD (equal-weight).
- AUM: Approximately $13B (as of 2026-Q1, iShares filing)
(Source: iShares SOXX Fund Fact Sheet, 2026-03-31)
② Top 10 Holdings (as of 2026-05-15)
| Rank | Ticker | Weight |
|---|---|---|
| 1 | MU (Micron) | 9.97% |
| 2 | AMD | 8.88% |
| 3 | AVGO (Broadcom) | 7.29% |
| 4 | NVDA (Nvidia) | 7.05% |
| 5 | INTC (Intel) | 6.73% |
| 6–10 | TXN·QCOM·LRCX·KLAC·AMAT (equipment & analog) | ~22% combined |
| Top 10 Total | — | 61.84% |
(Source: stockanalysis.com / etfchannel.com — original: iShares Daily Holdings, accessed 2026-05-18)
③ Costs, Premium/Discount & Tax
| Item | Figure | Note |
|---|---|---|
| Expense Ratio | 0.34% | iShares filing |
| NAV Premium/Discount (1Y est.) | ±0.05% | Large ETF, sufficient liquidity |
| US Dividend Tax (W-8BEN) | 15% | 30% if not filed |
| Dividend Yield (TTM) | 0.36% | Growth ETF, minimal dividends |
In plain terms: With W-8BEN filed, total annual cost burden is approximately 0.34%–0.45%. The volatility cost (2022 MDD -35%) vastly exceeds the nominal cost.
(Source: iShares filing / IRS W-8BEN guidance)
④ Returns & Drawdown (5Y focus)
| Period | SOXX | SPY (ref.) |
|---|---|---|
| YTD (2026-01-02 → 05-18, Supabase) | +62.2% | +8.5% |
| 1Y (TTM) | +138%–148% | +30%s |
| 5Y CAGR | 31.40% | ~14% |
| 5Y Total Return | +296% | — |
| 2022 MDD | -35.09% | -19% |
| Beta | 1.77 | 1.00 |
The 31.4% 5-year CAGR is not the result of a lump-sum buy — it belongs only to those who held through a single -35% drawdown in 2022. A single CAGR figure tells you little about the difficulty of the ride.
(Source: financecharts.com·Morningstar·Yahoo Finance / Supabase etf_prices, accessed 2026-05-18)
⑤ Risks (3 paragraphs + Counter-consensus)
① Late-Cycle P/E Trap — The May issue 4-way debate decided to reduce SOXX weight from 40% to 38%. After April's +12.3% hit, the semiconductor sector P/E approached the 95th percentile. Explicitly noted: if the Waller confirmation hearing's first meeting (June) yields a hawkish dot plot, a -10% scenario is possible.
② NVDA Q2 Earnings Dependency — NVDA's weight in SOXX is 7.05%, lower than in SMH (~18%). But adding AMD·AVGO·MU brings the AI datacenter Big 4 to approximately 33%. A NVDA guidance miss would trigger correlated selloffs across all four — a co-movement risk.
③ Counter-consensus — "SOXX is diversified with 30 holdings" is half-true — Holding 30 stocks is effectively a diversification label, but with top 5 at 41.92% / top 10 at 61.84%, this is closer to 5–10 stock concentration. More diversified than SMH, but more concentrated than XSD (equal-weight 40+ stocks). Before relying on the intuition of "30 stocks = diversified," always check the cumulative weight of the top 10.
⑥ Comparison: 3 Similar ETFs
| ETF | Manager | ER | # Holdings | Weighting | Key Difference |
|---|---|---|---|---|---|
| SOXX | iShares | 0.34% | 30 | Modified market-cap | Middle ground — compromise between market-cap and equal-weight |
| SMH | VanEck | 0.35% | 26 | Market-cap | NVDA 18%+ single-name concentration ↑ |
| XSD | SPDR | 0.35% | 40+ | Equal-weight | Small-cap weight ↑, volatility & downside ↑ |
If you want true diversification: XSD. If you want AI big names concentrated: SMH. In between: SOXX. The 4-way debate decided to hold SOXX at 38% in late-cycle — semi-concentrated.
(Source: etf.com / etfdb.com SMH-vs-SOXX comparison, accessed 2026-05-18)
Takeaways (individual investor)
✅ Hold: Apply trim rule (scale out when +15% return within 30 days). Maintain May issue weight of 38%. ⚠️ New entry: After confirming Waller confirmation result mid-May · June dot plot — scale in. No lump-sum. 📅 Next decision point: 2026-07 NVDA Q2 earnings. Judgment is past the 2/3 shelf-life mark.
ETF Insight operates not only on the results of decisions but on the process and the principle of "we publish even when we're wrong." We do not declare April's SOXX +12.3% a clean hit. Objective verification at the 2026-06-13 measurement date. This material is not a buy or sell recommendation.
Sources
- iShares SOXX Fund Fact Sheet (2026-03-31) — expense ratio, index, AUM
- Morningstar — SOXX Performance — 5Y CAGR, rating
- financecharts.com — SOXX CAGR — 5Y total return, MDD
- Supabase
etf_prices(internal DB) — YTD price (2026-01-02–05-18, 94 trading days) - stockanalysis.com — SOXX Holdings — Top 10 (source: iShares Daily Holdings)
- etf.com — SMH vs SOXX — comparable ETF comparison
Related: [[monthly-etf-report-2026-05]] · [[etf-sector-rotation-debate-2026-05]] · [[etf-deepdive-guidelines-v1]]