ROP vs SKM: Correlation
How closely do Roper Technologies (ROP) and SK Telecom Co., Ltd. (SKM) trade together? Their weekly returns over three years give a correlation of -0.23, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ROP and SKM?
Across a 3-year window, the weekly returns of ROP and SKM correlate at -0.23, negative, meaning they tend to move in opposite directions. The past 12 months show a weaker link (-0.43) than the 3-year average (-0.23). Stretching to 5 years gives -0.04, with an annualized covariance of -149.9 %².
Among the 47 assets we track against ROP, SKM ranks #40 by 3-year correlation. The last year tells two different stories: SKM led by 99.4 percentage points, -19.3% for ROP against +80.1% for SKM. Risk is not evenly split, since SKM carries 1.5 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.
ROP vs SKM: side by side
| ROP (Roper Technologies) | SKM (SK Telecom Co., Ltd.) | |
|---|---|---|
| 1-year return | -19.3% | +80.1% |
| 5-year return | -9.6% | +83.7% |
| Volatility (ann.) | 20.5% | 31.3% |
| Beta vs S&P 500 | 0.55 | 0.32 |
| Max drawdown (3Y) | -46.5% | -35.6% |
| Market cap | $41.8B | $15.2B |
| P/E (trailing) | 17.6 | 29.0 |
| Dividend yield | 0.86% | 4170.85% |
| Sector / category | Information Technology | US Listed |
Year-by-year returns
| Year | ROP | SKM |
|---|---|---|
| 2022 | -11.6% | -17.8% |
| 2023 | +26.9% | +11.6% |
| 2024 | -4.1% | +2.9% |
| 2025 | -13.8% | +1.0% |
| 2026 | -4.4% | +92.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ROP and SKM good diversifiers for each other?
Yes: at -0.23, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between ROP and SKM?
The ROP/SKM correlation stands at -0.23 on a 3-year window (1 year: -0.43, 5 years: -0.04), computed from weekly returns as of 2026-08-27.
Is SKM a good diversifier for ROP?
Yes: at -0.23, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.23 mean?
On the −1 to +1 scale, -0.23 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/rop-vs-skm.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/rop-vs-skm/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: ROP correlations · SKM correlations
