BRN vs ISRG: Correlation
Barnwell Industries, Inc. (BRN) and Intuitive Surgical (ISRG) show a negative relationship: their 3-year correlation of weekly returns is -0.22.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BRN and ISRG?
Across a 3-year window, the weekly returns of BRN and ISRG correlate at -0.22, negative, meaning they tend to move in opposite directions. The relationship has been stable: the 1-year correlation (-0.16) sits close to the 3-year figure. Stretching to 5 years gives -0.07, with an annualized covariance of -365.4 %².
Within BRN's tracked universe of 35 assets, ISRG comes in at #27 by 3-year correlation. Twelve-month performance is nearly a tie, at -19.1% for BRN and -22.1% for ISRG. Note the risk asymmetry: BRN runs 1.7 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.
BRN vs ISRG: side by side
| BRN (Barnwell Industries, Inc.) | ISRG (Intuitive Surgical) | |
|---|---|---|
| 1-year return | -19.1% | -22.1% |
| 5-year return | -58.9% | +4.0% |
| Volatility (ann.) | 53.1% | 31.1% |
| Beta vs S&P 500 | -0.22 | 1.20 |
| Max drawdown (3Y) | -68.5% | -45.6% |
| Market cap | – | $131.5B |
| P/E (trailing) | – | 42.5 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | Health Care |
Year-by-year returns
| Year | BRN | ISRG |
|---|---|---|
| 2022 | +2.8% | -26.1% |
| 2023 | -16.5% | +27.1% |
| 2024 | -37.9% | +54.7% |
| 2025 | -26.5% | +8.5% |
| 2026 | -14.0% | -35.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BRN and ISRG good diversifiers for each other?
By historical standards, yes. A correlation of -0.22 means the two rarely move for the same reasons.
FAQ
What is the correlation between BRN and ISRG?
Using weekly returns as of 2026-08-27: -0.22 over 3 years, with -0.16 over the last year and -0.07 over 5 years.
Is ISRG a good diversifier for BRN?
By historical standards, yes. A correlation of -0.22 means the two rarely move for the same reasons.
What does a correlation of -0.22 mean?
On the −1 to +1 scale, -0.22 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
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Related comparisons
Hubs: BRN correlations · ISRG correlations
