PSIX vs VT: Correlation
Power Solutions International, Inc. (PSIX) and Vanguard Total World Stock ETF (VT) show a moderate relationship: their 3-year correlation of weekly returns is 0.41.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PSIX and VT?
Over the past 3 years, PSIX and VT moved with a correlation of 0.41, which is moderate. The past 12 months show a tighter link (0.53) than the 3-year average (0.41). Over 5 years the correlation is 0.22, and the annualized covariance of weekly returns is 586.5 %².
Within PSIX's tracked universe of 12 assets, VT comes in at #5 by 3-year correlation. The last year tells two different stories: VT led by 76.3 percentage points, -53.6% for PSIX against +22.7% for VT. One caveat on sizing: PSIX is 7.5 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
PSIX vs VT: side by side
| PSIX (Power Solutions International, Inc.) | VT (Vanguard Total World Stock ETF) | |
|---|---|---|
| 1-year return | -53.6% | +22.7% |
| 5-year return | +670.8% | +67.7% |
| Volatility (ann.) | 104.2% | 13.9% |
| Beta vs S&P 500 | 2.68 | 0.92 |
| Max drawdown (3Y) | -78.0% | -16.5% |
| Market cap | $0.9B | – |
| P/E (trailing) | 12.4 | – |
| Dividend yield | 0.00% | 1.59% |
| Expense ratio | – | 0.06% |
| Assets under management | – | $97.9B |
| Sector / category | US Listed | ETF · Global |
VT is a Global Large-Stock Blend fund from Vanguard: $97.9B under management, 5308 holdings, a 0.06% expense ratio, a 1.59% trailing dividend yield.
Year-by-year returns
| Year | PSIX | VT |
|---|---|---|
| 2022 | +0.0% | -18.0% |
| 2023 | -31.7% | +22.0% |
| 2024 | +1351.2% | +16.5% |
| 2025 | +92.1% | +22.4% |
| 2026 | -33.9% | +15.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PSIX and VT good diversifiers for each other?
A fair diversifier. At 0.41, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between PSIX and VT?
The PSIX/VT correlation stands at 0.41 on a 3-year window (1 year: 0.53, 5 years: 0.22), computed from weekly returns as of 2026-08-27.
Is VT a good diversifier for PSIX?
A fair diversifier. At 0.41, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.41 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/psix-vs-vt.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/psix-vs-vt/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: PSIX correlations · VT correlations
