BEAM vs XBI: Correlation
Measured on weekly returns over the past three years, Beam Therapeutics Inc. (BEAM) and SPDR S&P Biotech ETF (XBI) carry a correlation of 0.68, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BEAM and XBI?
On 3 years of weekly data the BEAM/XBI correlation comes out at 0.68, strong. The relationship has been stable: the 1-year correlation (0.59) sits close to the 3-year figure. The 5-year figure is 0.69, and annualized covariance runs at 1367.2 %².
Few assets follow BEAM as closely as XBI, which ranks #2 of 20 tracked partners. The trailing year gives XBI the advantage: +80.8% versus +87.2%, a 6.4-point spread. One caveat on sizing: BEAM is 2.6 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
BEAM vs XBI: side by side
| BEAM (Beam Therapeutics Inc.) | XBI (SPDR S&P Biotech ETF) | |
|---|---|---|
| 1-year return | +80.8% | +87.2% |
| 5-year return | -71.5% | +28.6% |
| Volatility (ann.) | 72.6% | 27.7% |
| Beta vs S&P 500 | 2.39 | 1.09 |
| Max drawdown (3Y) | -67.7% | -33.0% |
| Market cap | $3.1B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | – |
| Sector / category | US Listed | ETF · Thematic |
Year-by-year returns
| Year | BEAM | XBI |
|---|---|---|
| 2022 | -50.9% | -25.9% |
| 2023 | -30.4% | +7.6% |
| 2024 | -8.9% | +1.0% |
| 2025 | +11.8% | +35.9% |
| 2026 | +10.0% | +38.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BEAM and XBI good diversifiers for each other?
Only partially. A correlation of 0.68 means BEAM and XBI share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between BEAM and XBI?
Using weekly returns as of 2026-08-27: 0.68 over 3 years, with 0.59 over the last year and 0.69 over 5 years.
Is XBI a good diversifier for BEAM?
Only partially. A correlation of 0.68 means BEAM and XBI share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.68 mean?
A reading of 0.68 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/beam-vs-xbi.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/beam-vs-xbi/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: BEAM correlations · XBI correlations
