OTLK vs SPCE: Correlation
How closely do Outlook Therapeutics, Inc. (OTLK) and Virgin Galactic Holdings, Inc. (SPCE) trade together? Their weekly returns over three years give a correlation of 0.36, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are OTLK and SPCE?
Over the past 3 years, OTLK and SPCE moved with a correlation of 0.36, which is moderate. Lately the two have moved closer together, with the 1-year correlation at 0.56 versus 0.36 over 3 years. Over 5 years the correlation is 0.33, and the annualized covariance of weekly returns is 5173.4 %².
By 3-year correlation, SPCE places #4 of the 10 assets tracked against OTLK. The last year tells two different stories: SPCE led by 70.1 percentage points, -73.0% for OTLK against -2.9% for SPCE.
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.
OTLK vs SPCE: side by side
| OTLK (Outlook Therapeutics, Inc.) | SPCE (Virgin Galactic Holdings, Inc.) | |
|---|---|---|
| 1-year return | -73.0% | -2.9% |
| 5-year return | -98.8% | -99.4% |
| Volatility (ann.) | 143.2% | 100.5% |
| Beta vs S&P 500 | 0.95 | 2.82 |
| Max drawdown (3Y) | -99.3% | -96.0% |
| Market cap | $0.2B | $0.5B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | OTLK | SPCE |
|---|---|---|
| 2022 | -20.6% | -74.0% |
| 2023 | -63.5% | -29.6% |
| 2024 | -76.0% | -88.0% |
| 2025 | -16.4% | -45.4% |
| 2026 | -59.4% | -6.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are OTLK and SPCE good diversifiers for each other?
Reasonably. At 0.36, OTLK and SPCE keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between OTLK and SPCE?
Using weekly returns as of 2026-08-27: 0.36 over 3 years, with 0.56 over the last year and 0.33 over 5 years.
Is SPCE a good diversifier for OTLK?
Reasonably. At 0.36, OTLK and SPCE keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.36 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/otlk-vs-spce.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/otlk-vs-spce/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: OTLK correlations · SPCE correlations
