SOXX vs TER: Correlation
iShares Semiconductor ETF (SOXX) and Teradyne (TER) show a strong relationship: their 3-year correlation of weekly returns is 0.69.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SOXX and TER?
Across a 3-year window, the weekly returns of SOXX and TER correlate at 0.69, strong. Recent behaviour matches the longer record: 0.62 over 1 year against 0.69 over 3. Stretching to 5 years gives 0.74, with an annualized covariance of 1272.1 %².
Within SOXX's tracked universe of 127 assets, TER comes in at #50 by 3-year correlation. Correlation aside, the last 12 months split them widely, with TER ahead by 108.8 points (+110.0% versus +218.8%). On a rolling one-year basis the correlation drifted between 0.55 and 0.91, a moderate band.
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 TER: side by side
| SOXX (iShares Semiconductor ETF) | TER (Teradyne) | |
|---|---|---|
| 1-year return | +110.0% | +218.8% |
| 5-year return | +247.5% | +207.9% |
| Volatility (ann.) | 35.2% | 52.5% |
| Beta vs S&P 500 | 1.93 | 1.70 |
| Max drawdown (3Y) | -41.4% | -58.2% |
| Market cap | – | $58.2B |
| P/E (trailing) | – | 50.0 |
| Dividend yield | 0.29% | 0.14% |
| Expense ratio | 0.33% | – |
| Assets under management | $44.7B | – |
| Sector / category | ETF · Thematic | Information Technology |
SOXX is a Technology fund from iShares: $44.7B under management, 30 holdings, a 0.33% expense ratio, a 0.29% trailing dividend yield.
Year-by-year returns
| Year | SOXX | TER |
|---|---|---|
| 2022 | -35.1% | -46.3% |
| 2023 | +67.1% | +24.8% |
| 2024 | +12.9% | +16.5% |
| 2025 | +40.7% | +54.4% |
| 2026 | +74.7% | +92.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Fund exposure
Keep in mind that SOXX holds TER at a 3.14% weight, which makes a slice of this correlation mechanical rather than coincidental.
Are SOXX and TER good diversifiers for each other?
To a limited degree. At 0.69 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 TER?
Using weekly returns as of 2026-08-27: 0.69 over 3 years, with 0.62 over the last year and 0.74 over 5 years.
Is TER a good diversifier for SOXX?
To a limited degree. At 0.69 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 0.69 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/soxx-vs-ter.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/soxx-vs-ter/)
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Related comparisons
Hubs: SOXX correlations · TER correlations
