GEOS vs SPY: Correlation
Measured on weekly returns over the past three years, Geospace Technologies Corporation (GEOS) and SPDR S&P 500 ETF Trust (SPY) carry a correlation of 0.11, a weak link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are GEOS and SPY?
On 3 years of weekly data the GEOS/SPY correlation comes out at 0.11, weak. Little has changed lately, as the 1-year reading of 0.06 lands near the 3-year figure. The 5-year figure is 0.12, and annualized covariance runs at 137.2 %².
Within GEOS's tracked universe of 15 assets, SPY comes in at #7 by 3-year correlation. The last year tells two different stories: SPY led by 94.8 percentage points, -74.2% for GEOS against +20.6% for SPY. One caveat on sizing: GEOS is 6.0 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.
GEOS vs SPY: side by side
| GEOS (Geospace Technologies Corporation) | SPY (SPDR S&P 500 ETF Trust) | |
|---|---|---|
| 1-year return | -74.2% | +20.6% |
| 5-year return | -48.1% | +82.4% |
| Volatility (ann.) | 86.6% | 14.5% |
| Beta vs S&P 500 | 0.66 | 1.00 |
| Max drawdown (3Y) | -81.9% | -18.8% |
| Market cap | $0.1B | – |
| 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 | GEOS | SPY |
|---|---|---|
| 2022 | -36.9% | -18.2% |
| 2023 | +207.1% | +26.2% |
| 2024 | -22.7% | +24.9% |
| 2025 | +68.8% | +17.7% |
| 2026 | -69.1% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are GEOS and SPY good diversifiers for each other?
Yes. With a correlation of 0.11, GEOS and SPY have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between GEOS and SPY?
As of 2026-08-27, the correlation of weekly returns between GEOS and SPY is 0.11 over 3 years, 0.06 over 1 year and 0.12 over 5 years.
Is SPY a good diversifier for GEOS?
Yes. With a correlation of 0.11, GEOS and SPY have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of 0.11 mean?
A reading of 0.11 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: GEOS correlations · SPY correlations
