ASTI vs FEMY: Correlation
How closely do Ascent Solar Technologies, Inc (ASTI) and Femasys Inc. (FEMY) trade together? Their weekly returns over three years give a correlation of -0.27, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ASTI and FEMY?
Over the past 3 years, ASTI and FEMY moved with a correlation of -0.27, which is negative, meaning they tend to move in opposite directions. Lately the two have moved closer together, with the 1-year correlation at 0.02 versus -0.27 over 3 years. Over 5 years the correlation is -0.23, and the annualized covariance of weekly returns is -19322.7 %².
FEMY is close to the least connected end of ASTI's tracked universe, ranking #10 of 10. Their recent paths diverged sharply: over the last 12 months ASTI outperformed by 109.3 percentage points (+48.1% for ASTI against -61.2% for FEMY). Note the risk asymmetry: FEMY runs 3.6 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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 FEMY: side by side
| ASTI (Ascent Solar Technologies, Inc) | FEMY (Femasys Inc.) | |
|---|---|---|
| 1-year return | +48.1% | -61.2% |
| 5-year return | n/a | -98.0% |
| Volatility (ann.) | 141.9% | 509.3% |
| Beta vs S&P 500 | 2.60 | -0.49 |
| Max drawdown (3Y) | -99.9% | -97.2% |
| Market cap | – | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ASTI | FEMY |
|---|---|---|
| 2022 | – | -76.9% |
| 2023 | -99.7% | +8.3% |
| 2024 | -96.2% | +12.8% |
| 2025 | +25.7% | -47.6% |
| 2026 | -24.3% | -75.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ASTI and FEMY good diversifiers for each other?
By historical standards, yes. A correlation of -0.27 means the two rarely move for the same reasons.
FAQ
What is the correlation between ASTI and FEMY?
As of 2026-08-27, the correlation of weekly returns between ASTI and FEMY is -0.27 over 3 years, 0.02 over 1 year and -0.23 over 5 years.
Is FEMY a good diversifier for ASTI?
By historical standards, yes. A correlation of -0.27 means the two rarely move for the same reasons.
What does a correlation of -0.27 mean?
A reading of -0.27 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/asti-vs-femy.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/asti-vs-femy/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: ASTI correlations · FEMY correlations
