PRM vs SPY: Correlation
Perimeter Solutions, SA (PRM) and SPDR S&P 500 ETF Trust (SPY) show a moderate relationship: their 3-year correlation of weekly returns is 0.42.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PRM and SPY?
Across a 3-year window, the weekly returns of PRM and SPY correlate at 0.42, moderate. Recent behaviour matches the longer record: 0.49 over 1 year against 0.42 over 3. Stretching to 5 years gives 0.41, with an annualized covariance of 300.6 %².
Among the 10 assets we track against PRM, SPY sits near the bottom by co-movement, at rank #6. The last year tells two different stories: PRM led by 26.3 percentage points, +46.9% for PRM against +20.6% for SPY. Note the risk asymmetry: PRM runs 3.4 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.
PRM vs SPY: side by side
| PRM (Perimeter Solutions, SA) | SPY (SPDR S&P 500 ETF Trust) | |
|---|---|---|
| 1-year return | +46.9% | +20.6% |
| 5-year return | +166.9% | +82.4% |
| Volatility (ann.) | 49.1% | 14.5% |
| Beta vs S&P 500 | 1.44 | 1.00 |
| Max drawdown (3Y) | -51.3% | -18.8% |
| Market cap | $5.2B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 1.01% |
| Expense ratio | – | 0.09% |
| Assets under management | – | $795.3B |
| Sector / category | US Listed | ETF · US Large Cap |
SPY is a Large Blend fund from State Street Investment Management: $795.3B under management, 504 holdings, a 0.09% expense ratio, a 1.01% trailing dividend yield.
Year-by-year returns
| Year | PRM | SPY |
|---|---|---|
| 2022 | -34.2% | -18.2% |
| 2023 | -49.7% | +26.2% |
| 2024 | +177.8% | +24.9% |
| 2025 | +115.4% | +17.7% |
| 2026 | +16.3% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PRM and SPY good diversifiers for each other?
Reasonably. At 0.42, PRM and SPY keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between PRM and SPY?
As of 2026-08-27, the correlation of weekly returns between PRM and SPY is 0.42 over 3 years, 0.49 over 1 year and 0.41 over 5 years.
Is SPY a good diversifier for PRM?
Reasonably. At 0.42, PRM and SPY keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.42 mean?
A reading of 0.42 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: PRM correlations · SPY correlations
