COHR vs SXTC: Correlation
Coherent Corp. (COHR) and China SXT Pharmaceuticals, Inc. - Class A (SXTC) show a negative relationship: their 3-year correlation of weekly returns is -0.17.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are COHR and SXTC?
Across a 3-year window, the weekly returns of COHR and SXTC correlate at -0.17, negative, meaning they tend to move in opposite directions. Lately the two have drifted apart, with the 1-year correlation at -0.28 versus -0.17 over 3 years. Stretching to 5 years gives -0.13, with an annualized covariance of -76305.1 %².
Within COHR's tracked universe of 41 assets, SXTC comes in at #33 by 3-year correlation. The last year tells two different stories: COHR led by 324.0 percentage points, +225.6% for COHR against -98.4% for SXTC. One caveat on sizing: SXTC is 107.2 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.
COHR vs SXTC: side by side
| COHR (Coherent Corp.) | SXTC (China SXT Pharmaceuticals, Inc. - Class A) | |
|---|---|---|
| 1-year return | +225.6% | -98.4% |
| 5-year return | +368.6% | -99.9% |
| Volatility (ann.) | 65.0% | 6970.7% |
| Beta vs S&P 500 | 2.76 | 6.97 |
| Max drawdown (3Y) | -54.8% | -100.0% |
| Market cap | $57.8B | – |
| P/E (trailing) | 71.4 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | Information Technology | US Listed |
Year-by-year returns
| Year | COHR | SXTC |
|---|---|---|
| 2022 | -48.6% | -16.6% |
| 2023 | +24.0% | -70.7% |
| 2024 | +117.6% | -87.2% |
| 2025 | +94.8% | +215.0% |
| 2026 | +60.0% | -98.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are COHR and SXTC good diversifiers for each other?
Yes: at -0.17, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between COHR and SXTC?
Using weekly returns as of 2026-08-27: -0.17 over 3 years, with -0.28 over the last year and -0.13 over 5 years.
Is SXTC a good diversifier for COHR?
Yes: at -0.17, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.17 mean?
A reading of -0.17 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/cohr-vs-sxtc.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/cohr-vs-sxtc/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: COHR correlations · SXTC correlations
