ASPN vs NATR: Correlation
How closely do Aspen Aerogels, Inc. (ASPN) and Nature's Sunshine Products, Inc. (NATR) trade together? Their weekly returns over three years give a correlation of -0.29, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ASPN and NATR?
On 3 years of weekly data the ASPN/NATR correlation comes out at -0.29, negative, meaning they tend to move in opposite directions. Lately the two have drifted apart, with the 1-year correlation at -0.63 versus -0.29 over 3 years. The 5-year figure is -0.13, and annualized covariance runs at -1078.3 %².
NATR is close to the least connected end of ASPN's tracked universe, ranking #11 of 14. On 12-month performance NATR holds a 8.0-point edge, -25.5% against -17.5%. One caveat on sizing: ASPN is 2.1 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.
ASPN vs NATR: side by side
| ASPN (Aspen Aerogels, Inc.) | NATR (Nature's Sunshine Products, Inc.) | |
|---|---|---|
| 1-year return | -25.5% | -17.5% |
| 5-year return | -88.1% | -19.3% |
| Volatility (ann.) | 88.3% | 42.5% |
| Beta vs S&P 500 | 2.05 | 0.33 |
| Max drawdown (3Y) | -91.9% | -49.9% |
| Market cap | $0.4B | $0.2B |
| P/E (trailing) | – | 13.9 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ASPN | NATR |
|---|---|---|
| 2022 | -76.3% | -55.0% |
| 2023 | +33.8% | +107.8% |
| 2024 | -24.7% | -15.2% |
| 2025 | -76.2% | +47.2% |
| 2026 | +84.8% | -35.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ASPN and NATR good diversifiers for each other?
By historical standards, yes. A correlation of -0.29 means the two rarely move for the same reasons.
FAQ
What is the correlation between ASPN and NATR?
Using weekly returns as of 2026-08-27: -0.29 over 3 years, with -0.63 over the last year and -0.13 over 5 years.
Is NATR a good diversifier for ASPN?
By historical standards, yes. A correlation of -0.29 means the two rarely move for the same reasons.
What does a correlation of -0.29 mean?
On the −1 to +1 scale, -0.29 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/aspn-vs-natr.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/aspn-vs-natr/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: ASPN correlations · NATR correlations
