VYGR vs XBI: Correlation
Measured on weekly returns over the past three years, Voyager Therapeutics, Inc. (VYGR) and SPDR S&P Biotech ETF (XBI) carry a correlation of 0.63, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are VYGR and XBI?
Across a 3-year window, the weekly returns of VYGR and XBI correlate at 0.63, strong. The past 12 months show a weaker link (0.52) than the 3-year average (0.63). Stretching to 5 years gives 0.39, with an annualized covariance of 1055.0 %².
Few assets follow VYGR as closely as XBI, which ranks #1 of 27 tracked partners. The last year tells two different stories: XBI led by 86.0 percentage points, +1.2% for VYGR against +87.2% for XBI. One caveat on sizing: VYGR is 2.2 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.
VYGR vs XBI: side by side
| VYGR (Voyager Therapeutics, Inc.) | XBI (SPDR S&P Biotech ETF) | |
|---|---|---|
| 1-year return | +1.2% | +87.2% |
| 5-year return | +7.5% | +28.6% |
| Volatility (ann.) | 60.2% | 27.7% |
| Beta vs S&P 500 | 1.35 | 1.09 |
| Max drawdown (3Y) | -74.8% | -33.0% |
| Market cap | $0.2B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | – |
| Sector / category | US Listed | ETF · Thematic |
Year-by-year returns
| Year | VYGR | XBI |
|---|---|---|
| 2022 | +125.1% | -25.9% |
| 2023 | +38.4% | +7.6% |
| 2024 | -32.8% | +1.0% |
| 2025 | -30.7% | +35.9% |
| 2026 | -12.0% | +38.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are VYGR and XBI good diversifiers for each other?
Only partially. A correlation of 0.63 means VYGR 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 VYGR and XBI?
Using weekly returns as of 2026-08-27: 0.63 over 3 years, with 0.52 over the last year and 0.39 over 5 years.
Is XBI a good diversifier for VYGR?
Only partially. A correlation of 0.63 means VYGR 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 0.63 mean?
A reading of 0.63 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/vygr-vs-xbi.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/vygr-vs-xbi/)
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Related comparisons
Hubs: VYGR correlations · XBI correlations
