BYSI vs SPY: Correlation
BeyondSpring, Inc. (BYSI) and SPDR S&P 500 ETF Trust (SPY) show a near-zero relationship: their 3-year correlation of weekly returns is 0.04.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BYSI and SPY?
Over the past 3 years, BYSI and SPY moved with a correlation of 0.04, which is near zero, meaning they move largely independently. The relationship has been stable: the 1-year correlation (0.06) sits close to the 3-year figure. Over 5 years the correlation is 0.06, and the annualized covariance of weekly returns is 60.7 %².
Out of 12 assets tracked against BYSI, SPY lands near the bottom at #9. Correlation aside, the last 12 months split them widely, with SPY ahead by 85.4 points (-64.8% versus +20.6%). One caveat on sizing: BYSI is 7.0 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.
BYSI vs SPY: side by side
| BYSI (BeyondSpring, Inc.) | SPY (SPDR S&P 500 ETF Trust) | |
|---|---|---|
| 1-year return | -64.8% | +20.6% |
| 5-year return | -97.7% | +82.4% |
| Volatility (ann.) | 101.3% | 14.5% |
| Beta vs S&P 500 | 0.29 | 1.00 |
| Max drawdown (3Y) | -82.4% | -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 | BYSI | SPY |
|---|---|---|
| 2022 | -58.5% | -18.2% |
| 2023 | -52.1% | +26.2% |
| 2024 | +81.1% | +24.9% |
| 2025 | +0.0% | +17.7% |
| 2026 | -60.7% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BYSI and SPY good diversifiers for each other?
Yes. With a correlation of 0.04, BYSI and SPY have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between BYSI and SPY?
As of 2026-08-27, the correlation of weekly returns between BYSI and SPY is 0.04 over 3 years, 0.06 over 1 year and 0.06 over 5 years.
Is SPY a good diversifier for BYSI?
Yes. With a correlation of 0.04, BYSI and SPY have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of 0.04 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: BYSI correlations · SPY correlations
