DK vs PSX: Correlation
Measured on weekly returns over the past three years, Delek US Holdings, Inc. (DK) and Phillips 66 (PSX) carry a correlation of 0.73, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are DK and PSX?
Over the past 3 years, DK and PSX moved with a correlation of 0.73, which is strong. Little has changed lately, as the 1-year reading of 0.69 lands near the 3-year figure. Over 5 years the correlation is 0.71, and the annualized covariance of weekly returns is 1323.8 %².
By 3-year correlation, PSX places #5 of the 14 assets tracked against DK. Correlation aside, the last 12 months split them widely, with DK ahead by 79.7 points (+165.9% versus +86.2%). Note the risk asymmetry: DK runs 1.6 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
DK vs PSX: side by side
| DK (Delek US Holdings, Inc.) | PSX (Phillips 66) | |
|---|---|---|
| 1-year return | +165.9% | +86.2% |
| 5-year return | +392.8% | +301.8% |
| Volatility (ann.) | 54.6% | 33.4% |
| Beta vs S&P 500 | 0.53 | 0.58 |
| Max drawdown (3Y) | -63.6% | -44.4% |
| Market cap | $4.3B | $96.1B |
| P/E (trailing) | 19.3 | 13.8 |
| Dividend yield | 1.44% | 2.04% |
| Sector / category | US Listed | Energy |
Year-by-year returns
| Year | DK | PSX |
|---|---|---|
| 2022 | +84.0% | +49.6% |
| 2023 | -0.8% | +33.1% |
| 2024 | -25.0% | -11.6% |
| 2025 | +68.7% | +17.5% |
| 2026 | +140.7% | +89.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are DK and PSX good diversifiers for each other?
Only partially. A correlation of 0.73 means DK and PSX share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between DK and PSX?
The DK/PSX correlation stands at 0.73 on a 3-year window (1 year: 0.69, 5 years: 0.71), computed from weekly returns as of 2026-08-27.
Is PSX a good diversifier for DK?
Only partially. A correlation of 0.73 means DK and PSX share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.73 mean?
On the −1 to +1 scale, 0.73 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/dk-vs-psx.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/dk-vs-psx/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: DK correlations · PSX correlations
