SW vs ZCMD: Correlation
Measured on weekly returns over the past three years, Smurfit Westrock (SW) and Zhongchao Inc. - Class A (ZCMD) carry a correlation of -0.15, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SW and ZCMD?
Across a 3-year window, the weekly returns of SW and ZCMD correlate at -0.15, negative, meaning they tend to move in opposite directions. Little has changed lately, as the 1-year reading of -0.20 lands near the 3-year figure. Stretching to 5 years gives -0.09, with an annualized covariance of -835.5 %².
Within SW's tracked universe of 30 assets, ZCMD comes in at #25 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months SW outperformed by 109.6 percentage points (+9.7% for SW against -99.9% for ZCMD). Risk is not evenly split, since ZCMD carries 3.5 times the volatility of the other side.
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.
SW vs ZCMD: side by side
| SW (Smurfit Westrock) | ZCMD (Zhongchao Inc. - Class A) | |
|---|---|---|
| 1-year return | +9.7% | -99.9% |
| 5-year return | +2.6% | -100.0% |
| Volatility (ann.) | 40.1% | 141.8% |
| Beta vs S&P 500 | 0.92 | 0.59 |
| Max drawdown (3Y) | -40.5% | -100.0% |
| Market cap | $25.5B | – |
| P/E (trailing) | 51.7 | – |
| Dividend yield | 3.57% | 0.00% |
| Sector / category | Materials | US Listed |
Year-by-year returns
| Year | SW | ZCMD |
|---|---|---|
| 2022 | -28.0% | -35.4% |
| 2023 | +14.1% | -69.5% |
| 2024 | +37.6% | -53.8% |
| 2025 | -26.2% | -72.2% |
| 2026 | +29.5% | -99.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SW and ZCMD good diversifiers for each other?
Yes. With a correlation of -0.15, SW and ZCMD have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between SW and ZCMD?
The SW/ZCMD correlation stands at -0.15 on a 3-year window (1 year: -0.20, 5 years: -0.09), computed from weekly returns as of 2026-08-27.
Is ZCMD a good diversifier for SW?
Yes. With a correlation of -0.15, SW and ZCMD have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.15 mean?
A reading of -0.15 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/sw-vs-zcmd.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/sw-vs-zcmd/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: SW correlations · ZCMD correlations
