SOXX vs STX: Correlation
Measured on weekly returns over the past three years, iShares Semiconductor ETF (SOXX) and Seagate Technology (STX) carry a correlation of 0.64, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SOXX and STX?
Over the past 3 years, SOXX and STX moved with a correlation of 0.64, which is strong. The relationship has been stable: the 1-year correlation (0.63) sits close to the 3-year figure. Over 5 years the correlation is 0.64, and the annualized covariance of weekly returns is 1153.6 %².
Among the 127 assets we track against SOXX, STX ranks #67 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months STX outperformed by 300.8 percentage points (+110.0% for SOXX against +410.8% for STX). Stability stands out here, with the rolling one-year correlation confined to 0.52 through 0.71.
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.
SOXX vs STX: side by side
| SOXX (iShares Semiconductor ETF) | STX (Seagate Technology) | |
|---|---|---|
| 1-year return | +110.0% | +410.8% |
| 5-year return | +247.5% | +1032.5% |
| Volatility (ann.) | 35.2% | 51.3% |
| Beta vs S&P 500 | 1.93 | 1.97 |
| Max drawdown (3Y) | -41.4% | -40.0% |
| Market cap | – | $192.0B |
| P/E (trailing) | – | 61.0 |
| Dividend yield | 0.29% | 0.35% |
| Expense ratio | 0.33% | – |
| Assets under management | $44.7B | – |
| Sector / category | ETF · Thematic | Information Technology |
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 | SOXX | STX |
|---|---|---|
| 2022 | -35.1% | -51.4% |
| 2023 | +67.1% | +69.1% |
| 2024 | +12.9% | +4.1% |
| 2025 | +40.7% | +225.3% |
| 2026 | +74.7% | +208.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SOXX and STX good diversifiers for each other?
To a limited degree. At 0.64 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between SOXX and STX?
As of 2026-08-27, the correlation of weekly returns between SOXX and STX is 0.64 over 3 years, 0.63 over 1 year and 0.64 over 5 years.
Is STX a good diversifier for SOXX?
To a limited degree. At 0.64 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.64 mean?
On the −1 to +1 scale, 0.64 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/soxx-vs-stx.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/soxx-vs-stx/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: SOXX correlations · STX correlations
