SMCI vs SOXX: Correlation
Measured on weekly returns over the past three years, Supermicro (SMCI) and iShares Semiconductor ETF (SOXX) carry a correlation of 0.48, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SMCI and SOXX?
Across a 3-year window, the weekly returns of SMCI and SOXX correlate at 0.48, moderate. The relationship has been stable: the 1-year correlation (0.41) sits close to the 3-year figure. Stretching to 5 years gives 0.49, with an annualized covariance of 1812.8 %².
By 3-year correlation, SOXX places #7 of the 29 assets tracked against SMCI. The last year tells two different stories: SOXX led by 124.1 percentage points, -14.1% for SMCI against +110.0% for SOXX. On a rolling one-year basis the correlation drifted between 0.37 and 0.67, a moderate band. Risk is not evenly split, since SMCI carries 3.0 times the volatility of the other side.
How is this computed?
Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.
SMCI vs SOXX: side by side
| SMCI (Supermicro) | SOXX (iShares Semiconductor ETF) | |
|---|---|---|
| 1-year return | -14.1% | +110.0% |
| 5-year return | +983.4% | +247.5% |
| Volatility (ann.) | 107.1% | 35.2% |
| Beta vs S&P 500 | 3.08 | 1.93 |
| Max drawdown (3Y) | -84.8% | -41.4% |
| Market cap | $24.9B | – |
| P/E (trailing) | 11.5 | – |
| Dividend yield | 0.00% | 0.29% |
| Expense ratio | – | 0.33% |
| Assets under management | – | $44.7B |
| Sector / category | Information Technology | ETF · Thematic |
On the fund side, SOXX sits in the Technology category at iShares, with $44.7B under management, 30 holdings, a 0.33% expense ratio, a 0.29% trailing dividend yield.
Year-by-year returns
| Year | SMCI | SOXX |
|---|---|---|
| 2022 | +86.8% | -35.1% |
| 2023 | +246.2% | +67.1% |
| 2024 | +7.2% | +12.9% |
| 2025 | -4.0% | +40.7% |
| 2026 | +31.4% | +74.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SMCI and SOXX good diversifiers for each other?
Reasonably. At 0.48, SMCI and SOXX keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between SMCI and SOXX?
The SMCI/SOXX correlation stands at 0.48 on a 3-year window (1 year: 0.41, 5 years: 0.49), computed from weekly returns as of 2026-08-27.
Is SOXX a good diversifier for SMCI?
Reasonably. At 0.48, SMCI and SOXX keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.48 mean?
A reading of 0.48 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/smci-vs-soxx.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/smci-vs-soxx/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: SMCI correlations · SOXX correlations
