KURA vs XBI: Correlation
Kura Oncology, Inc. (KURA) and SPDR S&P Biotech ETF (XBI) show a strong relationship: their 3-year correlation of weekly returns is 0.61.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are KURA and XBI?
On 3 years of weekly data the KURA/XBI correlation comes out at 0.61, strong. The relationship has been stable: the 1-year correlation (0.59) sits close to the 3-year figure. The 5-year figure is 0.57, and annualized covariance runs at 1006.1 %².
In KURA's tracked universe of 20 assets, XBI sits right near the top at #1. Correlation aside, the last 12 months split them widely, with XBI ahead by 19.5 points (+67.7% versus +87.2%). Risk is not evenly split, since KURA carries 2.2 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.
KURA vs XBI: side by side
| KURA (Kura Oncology, Inc.) | XBI (SPDR S&P Biotech ETF) | |
|---|---|---|
| 1-year return | +67.7% | +87.2% |
| 5-year return | -30.6% | +28.6% |
| Volatility (ann.) | 59.8% | 27.7% |
| Beta vs S&P 500 | 1.61 | 1.09 |
| Max drawdown (3Y) | -76.5% | -33.0% |
| Market cap | $1.2B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | – |
| Sector / category | US Listed | ETF · Thematic |
Year-by-year returns
| Year | KURA | XBI |
|---|---|---|
| 2022 | -11.4% | -25.9% |
| 2023 | +15.9% | +7.6% |
| 2024 | -39.4% | +1.0% |
| 2025 | +19.3% | +35.9% |
| 2026 | +26.9% | +38.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are KURA and XBI good diversifiers for each other?
To a limited degree. At 0.61 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between KURA and XBI?
As of 2026-08-27, the correlation of weekly returns between KURA and XBI is 0.61 over 3 years, 0.59 over 1 year and 0.57 over 5 years.
Is XBI a good diversifier for KURA?
To a limited degree. At 0.61 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.61 mean?
A reading of 0.61 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/kura-vs-xbi.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/kura-vs-xbi/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: KURA correlations · XBI correlations
