SPRB vs USNA: Correlation
How closely do Spruce Biosciences, Inc. (SPRB) and USANA Health Sciences, Inc. (USNA) trade together? Their weekly returns over three years give a correlation of -0.34, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SPRB and USNA?
Over the past 3 years, SPRB and USNA moved with a correlation of -0.34, which is negative, meaning they tend to move in opposite directions. The link has loosened recently: the 1-year correlation (-0.47) runs below the 3-year figure (-0.34). Over 5 years the correlation is -0.30, and the annualized covariance of weekly returns is -15499.6 %².
USNA is close to the least connected end of SPRB's tracked universe, ranking #63 of 67. The last year tells two different stories: SPRB led by 802.4 percentage points, +746.3% for SPRB against -56.1% for USNA. One caveat on sizing: SPRB is 25.5 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.
SPRB vs USNA: side by side
| SPRB (Spruce Biosciences, Inc.) | USNA (USANA Health Sciences, Inc.) | |
|---|---|---|
| 1-year return | +746.3% | -56.1% |
| 5-year return | -99.8% | -85.5% |
| Volatility (ann.) | 1086.4% | 42.6% |
| Beta vs S&P 500 | -7.82 | 0.90 |
| Max drawdown (3Y) | -100.0% | -80.1% |
| Market cap | $0.2B | $0.3B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | SPRB | USNA |
|---|---|---|
| 2022 | -75.4% | -47.4% |
| 2023 | +167.1% | +0.8% |
| 2024 | -85.7% | -33.0% |
| 2025 | -96.3% | -45.3% |
| 2026 | -27.3% | -28.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SPRB and USNA good diversifiers for each other?
By historical standards, yes. A correlation of -0.34 means the two rarely move for the same reasons.
FAQ
What is the correlation between SPRB and USNA?
As of 2026-08-27, the correlation of weekly returns between SPRB and USNA is -0.34 over 3 years, -0.47 over 1 year and -0.30 over 5 years.
Is USNA a good diversifier for SPRB?
By historical standards, yes. A correlation of -0.34 means the two rarely move for the same reasons.
What does a correlation of -0.34 mean?
On the −1 to +1 scale, -0.34 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/sprb-vs-usna.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/sprb-vs-usna/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: SPRB correlations · USNA correlations
