ISBA vs NKTR: Correlation
Measured on weekly returns over the past three years, Isabella Bank Corporation (ISBA) and Nektar Therapeutics (NKTR) carry a correlation of -0.26, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ISBA and NKTR?
Over the past 3 years, ISBA and NKTR moved with a correlation of -0.26, which is negative, meaning they tend to move in opposite directions. The past 12 months show a tighter link (-0.07) than the 3-year average (-0.26). Over 5 years the correlation is -0.19, and the annualized covariance of weekly returns is -1336.2 %².
NKTR is close to the least connected end of ISBA's tracked universe, ranking #15 of 16. Correlation aside, the last 12 months split them widely, with NKTR ahead by 138.2 points (+16.4% versus +154.6%). Risk is not evenly split, since NKTR carries 4.6 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.
ISBA vs NKTR: side by side
| ISBA (Isabella Bank Corporation) | NKTR (Nektar Therapeutics) | |
|---|---|---|
| 1-year return | +16.4% | +154.6% |
| 5-year return | +104.9% | -67.2% |
| Volatility (ann.) | 33.3% | 152.4% |
| Beta vs S&P 500 | 0.05 | 3.24 |
| Max drawdown (3Y) | -34.1% | -73.2% |
| Market cap | $0.3B | $2.5B |
| P/E (trailing) | 14.2 | – |
| Dividend yield | 2.91% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ISBA | NKTR |
|---|---|---|
| 2022 | -3.5% | -83.3% |
| 2023 | -3.5% | -75.2% |
| 2024 | +27.7% | +66.1% |
| 2025 | +99.1% | +203.1% |
| 2026 | -21.9% | +76.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ISBA and NKTR good diversifiers for each other?
By historical standards, yes. A correlation of -0.26 means the two rarely move for the same reasons.
FAQ
What is the correlation between ISBA and NKTR?
Using weekly returns as of 2026-08-27: -0.26 over 3 years, with -0.07 over the last year and -0.19 over 5 years.
Is NKTR a good diversifier for ISBA?
By historical standards, yes. A correlation of -0.26 means the two rarely move for the same reasons.
What does a correlation of -0.26 mean?
A reading of -0.26 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
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Related comparisons
Hubs: ISBA correlations · NKTR correlations
