MTEX vs SR: Correlation
Mannatech, Incorporated (MTEX) and Spire Inc. (SR) show a negative relationship: their 3-year correlation of weekly returns is -0.22.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MTEX and SR?
Over the past 3 years, MTEX and SR moved with a correlation of -0.22, which is negative, meaning they tend to move in opposite directions. The link has loosened recently: the 1-year correlation (-0.35) runs below the 3-year figure (-0.22). Over 5 years the correlation is -0.15, and the annualized covariance of weekly returns is -287.1 %².
Within MTEX's tracked universe of 34 assets, SR comes in at #20 by 3-year correlation. The last year tells two different stories: SR led by 40.1 percentage points, -28.5% for MTEX against +11.6% for SR. Risk is not evenly split, since MTEX carries 3.4 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.
MTEX vs SR: side by side
| MTEX (Mannatech, Incorporated) | SR (Spire Inc.) | |
|---|---|---|
| 1-year return | -28.5% | +11.6% |
| 5-year return | -79.1% | +53.3% |
| Volatility (ann.) | 65.8% | 19.6% |
| Beta vs S&P 500 | 0.48 | 0.17 |
| Max drawdown (3Y) | -74.9% | -19.4% |
| Market cap | – | $4.9B |
| P/E (trailing) | – | 18.2 |
| Dividend yield | 0.00% | 3.90% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | MTEX | SR |
|---|---|---|
| 2022 | -51.7% | +9.8% |
| 2023 | -53.5% | -5.3% |
| 2024 | +65.8% | +14.1% |
| 2025 | -38.6% | +27.1% |
| 2026 | -23.3% | +1.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MTEX and SR good diversifiers for each other?
By historical standards, yes. A correlation of -0.22 means the two rarely move for the same reasons.
FAQ
What is the correlation between MTEX and SR?
The MTEX/SR correlation stands at -0.22 on a 3-year window (1 year: -0.35, 5 years: -0.15), computed from weekly returns as of 2026-08-27.
Is SR a good diversifier for MTEX?
By historical standards, yes. A correlation of -0.22 means the two rarely move for the same reasons.
What does a correlation of -0.22 mean?
A reading of -0.22 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/mtex-vs-sr.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/mtex-vs-sr/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: MTEX correlations · SR correlations
