SPY vs SXTC: Correlation
How closely do SPDR S&P 500 ETF Trust (SPY) and China SXT Pharmaceuticals, Inc. - Class A (SXTC) trade together? Their weekly returns over three years give a correlation of 0.01, which is near-zero.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SPY and SXTC?
Over the past 3 years, SPY and SXTC moved with a correlation of 0.01, which is near zero, meaning they move largely independently. The relationship has been stable: the 1-year correlation (0.04) sits close to the 3-year figure. Over 5 years the correlation is 0.01, and the annualized covariance of weekly returns is 1456.1 %².
Among the 4755 assets we track against SPY, SXTC ranks #4576 by 3-year correlation. Correlation aside, the last 12 months split them widely, with SPY ahead by 119.0 points (+20.6% versus -98.4%). Note the risk asymmetry: SXTC runs 480.7 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
SPY vs SXTC: side by side
| SPY (SPDR S&P 500 ETF Trust) | SXTC (China SXT Pharmaceuticals, Inc. - Class A) | |
|---|---|---|
| 1-year return | +20.6% | -98.4% |
| 5-year return | +82.4% | -99.9% |
| Volatility (ann.) | 14.5% | 6970.7% |
| Beta vs S&P 500 | 1.00 | 6.97 |
| Max drawdown (3Y) | -18.8% | -100.0% |
| Market cap | – | – |
| P/E (trailing) | – | – |
| Dividend yield | 1.01% | 0.00% |
| Expense ratio | 0.09% | – |
| Assets under management | $795.3B | – |
| Sector / category | ETF · US Large Cap | US Listed |
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 | SPY | SXTC |
|---|---|---|
| 2022 | -18.2% | -16.6% |
| 2023 | +26.2% | -70.7% |
| 2024 | +24.9% | -87.2% |
| 2025 | +17.7% | +215.0% |
| 2026 | +13.7% | -98.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SPY and SXTC good diversifiers for each other?
Yes: at 0.01, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between SPY and SXTC?
Using weekly returns as of 2026-08-27: 0.01 over 3 years, with 0.04 over the last year and 0.01 over 5 years.
Is SXTC a good diversifier for SPY?
Yes: at 0.01, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of 0.01 mean?
On the −1 to +1 scale, 0.01 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.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/spy-vs-sxtc.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/spy-vs-sxtc/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: SPY correlations · SXTC correlations
