ASTI vs EPRX: Correlation
How closely do Ascent Solar Technologies, Inc (ASTI) and Eupraxia Pharmaceuticals Inc. (EPRX) trade together? Their weekly returns over three years give a correlation of 0.37, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ASTI and EPRX?
On 3 years of weekly data the ASTI/EPRX correlation comes out at 0.37, moderate. The past 12 months show a weaker link (0.23) than the 3-year average (0.37). The 5-year figure is n/a, and annualized covariance runs at 2617.6 %².
By 3-year correlation, EPRX places #5 of the 10 assets tracked against ASTI. Over the last 12 months ASTI came out ahead by 8.7 percentage points (+48.1% against +39.4%). Risk is not evenly split, since ASTI carries 2.9 times the volatility of the other side.
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.
ASTI vs EPRX: side by side
| ASTI (Ascent Solar Technologies, Inc) | EPRX (Eupraxia Pharmaceuticals Inc.) | |
|---|---|---|
| 1-year return | +48.1% | +39.4% |
| 5-year return | n/a | n/a |
| Volatility (ann.) | 141.9% | 49.2% |
| Beta vs S&P 500 | 2.60 | 1.06 |
| Max drawdown (3Y) | -99.9% | -35.9% |
| Market cap | – | $0.5B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ASTI | EPRX |
|---|---|---|
| 2023 | -99.7% | – |
| 2024 | -96.2% | – |
| 2025 | +25.7% | +138.2% |
| 2026 | -24.3% | -2.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ASTI and EPRX good diversifiers for each other?
Reasonably. At 0.37, ASTI and EPRX keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between ASTI and EPRX?
The ASTI/EPRX correlation stands at 0.37 on a 3-year window (1 year: 0.23, 5 years: n/a), computed from weekly returns as of 2026-08-27.
Is EPRX a good diversifier for ASTI?
Reasonably. At 0.37, ASTI and EPRX keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.37 mean?
On the −1 to +1 scale, 0.37 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/asti-vs-eprx.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/asti-vs-eprx/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: ASTI correlations · EPRX correlations
