PRZO vs SPY: Correlation
How closely do ParaZero Technologies Ltd. (PRZO) and SPDR S&P 500 ETF Trust (SPY) trade together? Their weekly returns over three years give a correlation of 0.16, which is weak.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PRZO and SPY?
On 3 years of weekly data the PRZO/SPY correlation comes out at 0.16, weak. Little has changed lately, as the 1-year reading of 0.26 lands near the 3-year figure. The 5-year figure is n/a, and annualized covariance runs at 407.4 %².
Among the 17 assets we track against PRZO, SPY ranks #12 by 3-year correlation. Correlation aside, the last 12 months split them widely, with SPY ahead by 62.9 points (-42.3% versus +20.6%). Risk is not evenly split, since PRZO carries 11.9 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.
PRZO vs SPY: side by side
| PRZO (ParaZero Technologies Ltd.) | SPY (SPDR S&P 500 ETF Trust) | |
|---|---|---|
| 1-year return | -42.3% | +20.6% |
| 5-year return | n/a | +82.4% |
| Volatility (ann.) | 172.1% | 14.5% |
| Beta vs S&P 500 | 1.95 | 1.00 |
| Max drawdown (3Y) | -88.0% | -18.8% |
| Market cap | – | – |
| 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 | PRZO | SPY |
|---|---|---|
| 2022 | – | -18.2% |
| 2023 | – | +26.2% |
| 2024 | +185.5% | +24.9% |
| 2025 | -59.9% | +17.7% |
| 2026 | -4.5% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PRZO and SPY good diversifiers for each other?
Yes: at 0.16, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between PRZO and SPY?
Using weekly returns as of 2026-08-27: 0.16 over 3 years, with 0.26 over the last year and n/a over 5 years.
Is SPY a good diversifier for PRZO?
Yes: at 0.16, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of 0.16 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.
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Related comparisons
Hubs: PRZO correlations · SPY correlations
