ATRA vs BKR: Correlation
Measured on weekly returns over the past three years, Atara Biotherapeutics, Inc. (ATRA) and Baker Hughes (BKR) carry a correlation of -0.19, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ATRA and BKR?
Across a 3-year window, the weekly returns of ATRA and BKR correlate at -0.19, negative, meaning they tend to move in opposite directions. The link has loosened recently: the 1-year correlation (-0.37) runs below the 3-year figure (-0.19). Stretching to 5 years gives -0.07, with an annualized covariance of -949.2 %².
Out of 13 assets tracked against ATRA, BKR lands near the bottom at #10. The last year tells two different stories: BKR led by 66.0 percentage points, -25.1% for ATRA against +40.9% for BKR. Risk is not evenly split, since ATRA carries 4.8 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.
ATRA vs BKR: side by side
| ATRA (Atara Biotherapeutics, Inc.) | BKR (Baker Hughes) | |
|---|---|---|
| 1-year return | -25.1% | +40.9% |
| 5-year return | -97.5% | +205.5% |
| Volatility (ann.) | 153.2% | 32.2% |
| Beta vs S&P 500 | 1.17 | 0.61 |
| Max drawdown (3Y) | -90.7% | -28.0% |
| Market cap | $0.1B | $61.7B |
| P/E (trailing) | – | 19.9 |
| Dividend yield | 0.00% | 1.48% |
| Sector / category | US Listed | Energy |
Year-by-year returns
| Year | ATRA | BKR |
|---|---|---|
| 2022 | -79.2% | +26.0% |
| 2023 | -84.4% | +18.6% |
| 2024 | +3.8% | +23.1% |
| 2025 | +35.9% | +13.4% |
| 2026 | -48.9% | +37.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ATRA and BKR good diversifiers for each other?
Yes: at -0.19, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between ATRA and BKR?
Using weekly returns as of 2026-08-27: -0.19 over 3 years, with -0.37 over the last year and -0.07 over 5 years.
Is BKR a good diversifier for ATRA?
Yes: at -0.19, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.19 mean?
A reading of -0.19 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/atra-vs-bkr.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/atra-vs-bkr/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: ATRA correlations · BKR correlations
