SNTG vs SPY: Correlation
Measured on weekly returns over the past three years, Sentage Holdings Inc. - Class A (SNTG) and SPDR S&P 500 ETF Trust (SPY) carry a correlation of 0.13, a weak link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SNTG and SPY?
Over the past 3 years, SNTG and SPY moved with a correlation of 0.13, which is weak. Lately the two have moved closer together, with the 1-year correlation at 0.27 versus 0.13 over 3 years. Over 5 years the correlation is 0.03, and the annualized covariance of weekly returns is 235.7 %².
Out of 17 assets tracked against SNTG, SPY lands near the bottom at #13. The trailing year gives SPY the advantage: +7.9% versus +20.6%, a 12.7-point spread. One caveat on sizing: SNTG is 8.7 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.
SNTG vs SPY: side by side
| SNTG (Sentage Holdings Inc. - Class A) | SPY (SPDR S&P 500 ETF Trust) | |
|---|---|---|
| 1-year return | +7.9% | +20.6% |
| 5-year return | -93.0% | +82.4% |
| Volatility (ann.) | 126.7% | 14.5% |
| Beta vs S&P 500 | 1.13 | 1.00 |
| Max drawdown (3Y) | -76.2% | -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 | SNTG | SPY |
|---|---|---|
| 2022 | -68.8% | -18.2% |
| 2023 | +160.4% | +26.2% |
| 2024 | -63.8% | +24.9% |
| 2025 | +4.4% | +17.7% |
| 2026 | -5.8% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SNTG and SPY good diversifiers for each other?
By historical standards, yes. A correlation of 0.13 means the two rarely move for the same reasons.
FAQ
What is the correlation between SNTG and SPY?
Using weekly returns as of 2026-08-27: 0.13 over 3 years, with 0.27 over the last year and 0.03 over 5 years.
Is SPY a good diversifier for SNTG?
By historical standards, yes. A correlation of 0.13 means the two rarely move for the same reasons.
What does a correlation of 0.13 mean?
On the −1 to +1 scale, 0.13 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.
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Related comparisons
Hubs: SNTG correlations · SPY correlations
