PI vs VTI: Correlation
Measured on weekly returns over the past three years, Impinj, Inc. (PI) and Vanguard Total Stock Market ETF (VTI) carry a correlation of 0.49, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PI and VTI?
On 3 years of weekly data the PI/VTI correlation comes out at 0.49, moderate. The relationship has been stable: the 1-year correlation (0.47) sits close to the 3-year figure. The 5-year figure is 0.50, and annualized covariance runs at 499.5 %².
By 3-year correlation, VTI places #5 of the 10 assets tracked against PI. The last year tells two different stories: VTI led by 30.5 percentage points, -9.8% for PI against +20.7% for VTI. Note the risk asymmetry: PI runs 4.8 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.
PI vs VTI: side by side
| PI (Impinj, Inc.) | VTI (Vanguard Total Stock Market ETF) | |
|---|---|---|
| 1-year return | -9.8% | +20.7% |
| 5-year return | +187.5% | +74.8% |
| Volatility (ann.) | 70.0% | 14.6% |
| Beta vs S&P 500 | 2.30 | 1.01 |
| Max drawdown (3Y) | -73.8% | -19.3% |
| Market cap | $5.1B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 1.06% |
| Expense ratio | – | 0.03% |
| Assets under management | – | $2,290.0B |
| Sector / category | US Listed | ETF · US Large Cap |
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.
Year-by-year returns
| Year | PI | VTI |
|---|---|---|
| 2022 | +23.1% | -19.5% |
| 2023 | -17.5% | +26.0% |
| 2024 | +61.3% | +23.8% |
| 2025 | +19.8% | +17.1% |
| 2026 | -3.4% | +14.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PI and VTI good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.49 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between PI and VTI?
The PI/VTI correlation stands at 0.49 on a 3-year window (1 year: 0.47, 5 years: 0.50), computed from weekly returns as of 2026-08-27.
Is VTI a good diversifier for PI?
Yes, to a useful degree: a correlation of 0.49 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.49 mean?
A reading of 0.49 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
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Related comparisons
Hubs: PI correlations · VTI correlations
