SOXX vs VTI: Correlation & Overlap
How closely do iShares Semiconductor ETF (SOXX) and Vanguard Total Stock Market ETF (VTI) trade together? Their weekly returns over three years give a correlation of 0.79, which is strong. The two funds also share 14.8% of their portfolios by weight.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SOXX and VTI?
Over the past 3 years, SOXX and VTI moved with a correlation of 0.79, which is strong. Little has changed lately, as the 1-year reading of 0.72 lands near the 3-year figure. Over 5 years the correlation is 0.79, and the annualized covariance of weekly returns is 406.6 %².
Within SOXX's tracked universe of 127 assets, VTI comes in at #18 by 3-year correlation. Correlation aside, the last 12 months split them widely, with SOXX ahead by 89.3 points (+110.0% versus +20.7%). The rolling one-year correlation stayed in a tight band between 0.69 and 0.89 over the past three years, which points to a structural rather than episodic relationship. Risk is not evenly split, since SOXX carries 2.4 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.
SOXX vs VTI: side by side
| SOXX (iShares Semiconductor ETF) | VTI (Vanguard Total Stock Market ETF) | |
|---|---|---|
| 1-year return | +110.0% | +20.7% |
| 5-year return | +247.5% | +74.8% |
| Volatility (ann.) | 35.2% | 14.6% |
| Beta vs S&P 500 | 1.93 | 1.01 |
| Max drawdown (3Y) | -41.4% | -19.3% |
| Dividend yield | 0.29% | 1.06% |
| Expense ratio | 0.33% | 0.03% |
| Assets under management | $44.7B | $2,290.0B |
| Sector / category | ETF · Thematic | ETF · US Large Cap |
SOXX is a Technology fund from iShares: $44.7B under management, 30 holdings, a 0.33% expense ratio, a 0.29% trailing dividend yield. VTI, Vanguard's Large Blend fund, carries $2,290.0B under management, 3140 holdings, a 0.03% expense ratio, a 1.06% trailing dividend yield.
Portfolio overlap between SOXX and VTI
The two portfolios are largely distinct: 14.8% of the funds' weight sits in the same underlying holdings (22 common positions). Correlation tells you they move together; overlap tells you why.
| Common holding | Weight in SOXX | Weight in VTI |
|---|---|---|
| NVDA | 8.87% | 6.42% |
| AVGO | 7.11% | 2.56% |
| MU | 8.64% | 1.29% |
| AMD | 8.33% | 1.08% |
| AMAT | 4.76% | 0.56% |
| LRCX | 4.39% | 0.51% |
| INTC | 4.97% | 0.50% |
| TXN | 3.83% | 0.35% |
| KLAC | 4.27% | 0.33% |
| ADI | 4.01% | 0.25% |
| MRVL | 5.34% | 0.23% |
| QCOM | 2.91% | 0.22% |
| MPWR | 3.43% | 0.09% |
| TER | 3.14% | 0.08% |
| ALAB | 2.26% | 0.07% |
Largest positions held only by SOXX: TSM (4.64%), NXPI (3.10%), ASML (2.51%), ASX (1.25%), UMC (0.88%). Only by VTI: AAPL (6.31%), MSFT (4.80%), AMZN (3.66%), GOOGL (2.91%), GOOG (2.32%).
Overlap = sum of the smaller of the two weights across common holdings, from issuer disclosures as of 2026-08-26. Top 15 common positions shown.
Year-by-year returns
| Year | SOXX | VTI |
|---|---|---|
| 2022 | -35.1% | -19.5% |
| 2023 | +67.1% | +26.0% |
| 2024 | +12.9% | +23.8% |
| 2025 | +40.7% | +17.1% |
| 2026 | +74.7% | +14.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SOXX and VTI good diversifiers for each other?
Somewhat, no more. With 0.79 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between SOXX and VTI?
Using weekly returns as of 2026-08-27: 0.79 over 3 years, with 0.72 over the last year and 0.79 over 5 years.
Is VTI a good diversifier for SOXX?
Somewhat, no more. With 0.79 correlation, most large moves hit both names, and the diversification benefit stays modest.
How much do SOXX and VTI overlap?
The two funds share 22 holdings amounting to 14.8% of weight, per issuer portfolio files dated 2026-08-26.
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Hubs: SOXX correlations · VTI correlations
