ATR vs PPG: Correlation
How closely do AptarGroup, Inc. (ATR) and PPG Industries (PPG) trade together? Their weekly returns over three years give a correlation of 0.61, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ATR and PPG?
Across a 3-year window, the weekly returns of ATR and PPG correlate at 0.61, strong. Little has changed lately, as the 1-year reading of 0.68 lands near the 3-year figure. Stretching to 5 years gives 0.61, with an annualized covariance of 326.3 %².
Within ATR's tracked universe of 19 assets, PPG comes in at #5 by 3-year correlation. Over the last 12 months PPG came out ahead by 7.1 percentage points (-3.3% against +3.8%).
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.
ATR vs PPG: side by side
| ATR (AptarGroup, Inc.) | PPG (PPG Industries) | |
|---|---|---|
| 1-year return | -3.3% | +3.8% |
| 5-year return | +4.9% | -22.0% |
| Volatility (ann.) | 21.0% | 25.5% |
| Beta vs S&P 500 | 0.53 | 0.90 |
| Max drawdown (3Y) | -35.2% | -37.4% |
| Market cap | $8.4B | $25.2B |
| P/E (trailing) | 24.4 | 16.4 |
| Dividend yield | 1.40% | 2.48% |
| Sector / category | US Listed | Materials |
Year-by-year returns
| Year | ATR | PPG |
|---|---|---|
| 2022 | -8.9% | -25.7% |
| 2023 | +13.9% | +21.2% |
| 2024 | +28.6% | -18.5% |
| 2025 | -21.4% | -12.0% |
| 2026 | +10.2% | +12.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ATR and PPG good diversifiers for each other?
Somewhat, no more. With 0.61 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between ATR and PPG?
The ATR/PPG correlation stands at 0.61 on a 3-year window (1 year: 0.68, 5 years: 0.61), computed from weekly returns as of 2026-08-27.
Is PPG a good diversifier for ATR?
Somewhat, no more. With 0.61 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.61 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/atr-vs-ppg.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/atr-vs-ppg/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: ATR correlations · PPG correlations
