ADP vs SKM: Correlation
Automatic Data Processing (ADP) and SK Telecom Co., Ltd. (SKM) show a negative relationship: their 3-year correlation of weekly returns is -0.25.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ADP and SKM?
On 3 years of weekly data the ADP/SKM correlation comes out at -0.25, negative, meaning they tend to move in opposite directions. The past 12 months show a weaker link (-0.42) than the 3-year average (-0.25). The 5-year figure is -0.07, and annualized covariance runs at -166.4 %².
SKM is close to the least connected end of ADP's tracked universe, ranking #42 of 43. The last year tells two different stories: SKM led by 83.6 percentage points, -3.5% for ADP against +80.1% for SKM.
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.
ADP vs SKM: side by side
| ADP (Automatic Data Processing) | SKM (SK Telecom Co., Ltd.) | |
|---|---|---|
| 1-year return | -3.5% | +80.1% |
| 5-year return | +52.0% | +83.7% |
| Volatility (ann.) | 21.7% | 31.3% |
| Beta vs S&P 500 | 0.53 | 0.32 |
| Max drawdown (3Y) | -40.8% | -35.6% |
| Market cap | $113.1B | $15.2B |
| P/E (trailing) | 26.0 | 29.0 |
| Dividend yield | 2.36% | 4170.85% |
| Sector / category | Industrials | US Listed |
Year-by-year returns
| Year | ADP | SKM |
|---|---|---|
| 2022 | -1.3% | -17.8% |
| 2023 | -0.2% | +11.6% |
| 2024 | +28.4% | +2.9% |
| 2025 | -10.2% | +1.0% |
| 2026 | +12.4% | +92.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ADP and SKM good diversifiers for each other?
By historical standards, yes. A correlation of -0.25 means the two rarely move for the same reasons.
FAQ
What is the correlation between ADP and SKM?
The ADP/SKM correlation stands at -0.25 on a 3-year window (1 year: -0.42, 5 years: -0.07), computed from weekly returns as of 2026-08-27.
Is SKM a good diversifier for ADP?
By historical standards, yes. A correlation of -0.25 means the two rarely move for the same reasons.
What does a correlation of -0.25 mean?
On the −1 to +1 scale, -0.25 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/adp-vs-skm.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/adp-vs-skm/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: ADP correlations · SKM correlations
