HAL vs PRQR: Correlation
Halliburton (HAL) and ProQR Therapeutics N.V. (PRQR) show a negative relationship: their 3-year correlation of weekly returns is -0.15.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are HAL and PRQR?
Across a 3-year window, the weekly returns of HAL and PRQR correlate at -0.15, negative, meaning they tend to move in opposite directions. Lately the two have drifted apart, with the 1-year correlation at -0.39 versus -0.15 over 3 years. Stretching to 5 years gives -0.09, with an annualized covariance of -606.0 %².
Within HAL's tracked universe of 44 assets, PRQR comes in at #35 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months HAL outperformed by 57.8 percentage points (+62.8% for HAL against +5.0% for PRQR). Risk is not evenly split, since PRQR carries 2.8 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.
HAL vs PRQR: side by side
| HAL (Halliburton) | PRQR (ProQR Therapeutics N.V.) | |
|---|---|---|
| 1-year return | +62.8% | +5.0% |
| 5-year return | +93.6% | -64.2% |
| Volatility (ann.) | 38.0% | 104.9% |
| Beta vs S&P 500 | 0.55 | 1.98 |
| Max drawdown (3Y) | -54.0% | -75.1% |
| Market cap | $29.6B | $0.3B |
| P/E (trailing) | 18.0 | – |
| Dividend yield | 1.97% | 0.00% |
| Sector / category | Energy | US Listed |
Year-by-year returns
| Year | HAL | PRQR |
|---|---|---|
| 2022 | +74.5% | -53.8% |
| 2023 | -6.5% | -46.5% |
| 2024 | -23.2% | +33.8% |
| 2025 | +7.0% | -23.8% |
| 2026 | +26.7% | +14.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are HAL and PRQR good diversifiers for each other?
Yes: at -0.15, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between HAL and PRQR?
As of 2026-08-27, the correlation of weekly returns between HAL and PRQR is -0.15 over 3 years, -0.39 over 1 year and -0.09 over 5 years.
Is PRQR a good diversifier for HAL?
Yes: at -0.15, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.15 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/hal-vs-prqr.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/hal-vs-prqr/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: HAL correlations · PRQR correlations
