GALT vs SPY: Correlation
Measured on weekly returns over the past three years, Galectin Therapeutics Inc. (GALT) and SPDR S&P 500 ETF Trust (SPY) carry a correlation of 0.04, a near-zero link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are GALT and SPY?
Across a 3-year window, the weekly returns of GALT and SPY correlate at 0.04, near zero, meaning they move largely independently. The past 12 months show a weaker link (-0.12) than the 3-year average (0.04). Stretching to 5 years gives 0.11, with an annualized covariance of 61.0 %².
Out of 11 assets tracked against GALT, SPY lands near the bottom at #7. Their recent paths diverged sharply: over the last 12 months SPY outperformed by 16.6 percentage points (+4.0% for GALT against +20.6% for SPY). One caveat on sizing: GALT is 6.9 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.
GALT vs SPY: side by side
| GALT (Galectin Therapeutics Inc.) | SPY (SPDR S&P 500 ETF Trust) | |
|---|---|---|
| 1-year return | +4.0% | +20.6% |
| 5-year return | +7.5% | +82.4% |
| Volatility (ann.) | 99.6% | 14.5% |
| Beta vs S&P 500 | 0.29 | 1.00 |
| Max drawdown (3Y) | -80.0% | -18.8% |
| Market cap | $0.4B | – |
| 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 | GALT | SPY |
|---|---|---|
| 2022 | -45.4% | -18.2% |
| 2023 | +46.9% | +26.2% |
| 2024 | -22.3% | +24.9% |
| 2025 | +222.5% | +17.7% |
| 2026 | -0.5% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are GALT and SPY good diversifiers for each other?
Yes. With a correlation of 0.04, GALT and SPY have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between GALT and SPY?
As of 2026-08-27, the correlation of weekly returns between GALT and SPY is 0.04 over 3 years, -0.12 over 1 year and 0.11 over 5 years.
Is SPY a good diversifier for GALT?
Yes. With a correlation of 0.04, GALT and SPY have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of 0.04 mean?
A reading of 0.04 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: GALT correlations · SPY correlations
