GNPX vs SPY: Correlation
Genprex, Inc. (GNPX) and SPDR S&P 500 ETF Trust (SPY) show a near-zero relationship: their 3-year correlation of weekly returns is -0.03.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are GNPX and SPY?
Over the past 3 years, GNPX and SPY moved with a correlation of -0.03, which is near zero, meaning they move largely independently. The link has tightened recently: the 1-year correlation (0.10) runs above the 3-year figure (-0.03). Over 5 years the correlation is 0.04, and the annualized covariance of weekly returns is -95.0 %².
By 3-year correlation, SPY places #7 of the 33 assets tracked against GNPX. Correlation aside, the last 12 months split them widely, with SPY ahead by 118.7 points (-98.1% versus +20.6%). One caveat on sizing: GNPX is 17.6 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.
GNPX vs SPY: side by side
| GNPX (Genprex, Inc.) | SPY (SPDR S&P 500 ETF Trust) | |
|---|---|---|
| 1-year return | -98.1% | +20.6% |
| 5-year return | -100.0% | +82.4% |
| Volatility (ann.) | 255.0% | 14.5% |
| Beta vs S&P 500 | -0.45 | 1.00 |
| Max drawdown (3Y) | -100.0% | -18.8% |
| Market cap | – | – |
| P/E (trailing) | 0.1 | – |
| 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 | GNPX | SPY |
|---|---|---|
| 2022 | +10.7% | -18.2% |
| 2023 | -84.1% | +26.2% |
| 2024 | -90.7% | +24.9% |
| 2025 | -95.9% | +17.7% |
| 2026 | -90.6% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are GNPX and SPY good diversifiers for each other?
By historical standards, yes. A correlation of -0.03 means the two rarely move for the same reasons.
FAQ
What is the correlation between GNPX and SPY?
As of 2026-08-27, the correlation of weekly returns between GNPX and SPY is -0.03 over 3 years, 0.10 over 1 year and 0.04 over 5 years.
Is SPY a good diversifier for GNPX?
By historical standards, yes. A correlation of -0.03 means the two rarely move for the same reasons.
What does a correlation of -0.03 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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Hubs: GNPX correlations · SPY correlations
