SOXX vs TTMI: Correlation
Measured on weekly returns over the past three years, iShares Semiconductor ETF (SOXX) and TTM Technologies, Inc. (TTMI) carry a correlation of 0.62, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SOXX and TTMI?
Over the past 3 years, SOXX and TTMI moved with a correlation of 0.62, which is strong. Recent behaviour matches the longer record: 0.68 over 1 year against 0.62 over 3. Over 5 years the correlation is 0.61, and the annualized covariance of weekly returns is 1333.7 %².
By 3-year correlation, TTMI places #79 of the 127 assets tracked against SOXX. The last year tells two different stories: TTMI led by 70.3 percentage points, +110.0% for SOXX against +180.3% for TTMI. Note the risk asymmetry: TTMI runs 1.7 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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 TTMI: side by side
| SOXX (iShares Semiconductor ETF) | TTMI (TTM Technologies, Inc.) | |
|---|---|---|
| 1-year return | +110.0% | +180.3% |
| 5-year return | +247.5% | +785.9% |
| Volatility (ann.) | 35.2% | 60.7% |
| Beta vs S&P 500 | 1.93 | 2.23 |
| Max drawdown (3Y) | -41.4% | -54.0% |
| Market cap | – | $13.1B |
| P/E (trailing) | – | 54.9 |
| Dividend yield | 0.29% | 0.00% |
| Expense ratio | 0.33% | – |
| Assets under management | $44.7B | – |
| Sector / category | ETF · Thematic | US Listed |
SOXX, iShares's Technology fund, carries $44.7B under management, 30 holdings, a 0.33% expense ratio, a 0.29% trailing dividend yield.
Year-by-year returns
| Year | SOXX | TTMI |
|---|---|---|
| 2022 | -35.1% | +1.2% |
| 2023 | +67.1% | +4.8% |
| 2024 | +12.9% | +56.5% |
| 2025 | +40.7% | +178.8% |
| 2026 | +74.7% | +80.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SOXX and TTMI good diversifiers for each other?
Somewhat, no more. With 0.62 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between SOXX and TTMI?
As of 2026-08-27, the correlation of weekly returns between SOXX and TTMI is 0.62 over 3 years, 0.68 over 1 year and 0.61 over 5 years.
Is TTMI a good diversifier for SOXX?
Somewhat, no more. With 0.62 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.62 mean?
On the −1 to +1 scale, 0.62 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-ttmi.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/soxx-vs-ttmi/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: SOXX correlations · TTMI correlations
