PRSO vs SPY: Correlation
Measured on weekly returns over the past three years, Peraso Inc. (PRSO) and SPDR S&P 500 ETF Trust (SPY) carry a correlation of 0.10, a weak link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PRSO and SPY?
Over the past 3 years, PRSO and SPY moved with a correlation of 0.10, which is weak. The link has loosened recently: the 1-year correlation (-0.02) runs below the 3-year figure (0.10). Over 5 years the correlation is 0.15, and the annualized covariance of weekly returns is 193.9 %².
Out of 10 assets tracked against PRSO, SPY lands near the bottom at #7. The last year tells two different stories: SPY led by 45.0 percentage points, -24.4% for PRSO against +20.6% for SPY. Note the risk asymmetry: PRSO runs 9.0 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.
PRSO vs SPY: side by side
| PRSO (Peraso Inc.) | SPY (SPDR S&P 500 ETF Trust) | |
|---|---|---|
| 1-year return | -24.4% | +20.6% |
| 5-year return | -99.7% | +82.4% |
| Volatility (ann.) | 130.5% | 14.5% |
| Beta vs S&P 500 | 0.93 | 1.00 |
| Max drawdown (3Y) | -95.6% | -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 | PRSO | SPY |
|---|---|---|
| 2022 | -82.6% | -18.2% |
| 2023 | -61.6% | +26.2% |
| 2024 | -89.6% | +24.9% |
| 2025 | -25.0% | +17.7% |
| 2026 | -25.3% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PRSO and SPY good diversifiers for each other?
Yes: at 0.10, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between PRSO and SPY?
Using weekly returns as of 2026-08-27: 0.10 over 3 years, with -0.02 over the last year and 0.15 over 5 years.
Is SPY a good diversifier for PRSO?
Yes: at 0.10, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of 0.10 mean?
On the −1 to +1 scale, 0.10 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/prso-vs-spy.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/prso-vs-spy/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: PRSO correlations · SPY correlations
