PM vs SR: Correlation
How closely do Philip Morris International (PM) and Spire Inc. (SR) trade together? Their weekly returns over three years give a correlation of 0.36, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PM and SR?
Over the past 3 years, PM and SR moved with a correlation of 0.36, which is moderate. Recent behaviour matches the longer record: 0.35 over 1 year against 0.36 over 3. Over 5 years the correlation is 0.32, and the annualized covariance of weekly returns is 165.1 %².
Among the 47 assets we track against PM, SR ranks #15 by 3-year correlation. The trailing year gives PM the advantage: +20.2% versus +11.6%, a 8.6-point spread.
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.
PM vs SR: side by side
| PM (Philip Morris International) | SR (Spire Inc.) | |
|---|---|---|
| 1-year return | +20.2% | +11.6% |
| 5-year return | +133.5% | +53.3% |
| Volatility (ann.) | 23.1% | 19.6% |
| Beta vs S&P 500 | -0.01 | 0.17 |
| Max drawdown (3Y) | -20.6% | -19.4% |
| Market cap | $296.9B | $4.9B |
| P/E (trailing) | 26.7 | 18.2 |
| Dividend yield | 3.03% | 3.90% |
| Sector / category | Consumer Staples | US Listed |
Year-by-year returns
| Year | PM | SR |
|---|---|---|
| 2022 | +12.3% | +9.8% |
| 2023 | -1.9% | -5.3% |
| 2024 | +34.3% | +14.1% |
| 2025 | +38.0% | +27.1% |
| 2026 | +20.8% | +1.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PM and SR good diversifiers for each other?
A fair diversifier. At 0.36, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between PM and SR?
As of 2026-08-27, the correlation of weekly returns between PM and SR is 0.36 over 3 years, 0.35 over 1 year and 0.32 over 5 years.
Is SR a good diversifier for PM?
A fair diversifier. At 0.36, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.36 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/pm-vs-sr.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/pm-vs-sr/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: PM correlations · SR correlations
