AEIS vs ESLA: Correlation
Advanced Energy Industries, Inc. (AEIS) and Estrella Immunopharma, Inc. (ESLA) show a moderate relationship: their 3-year correlation of weekly returns is 0.31.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AEIS and ESLA?
On 3 years of weekly data the AEIS/ESLA correlation comes out at 0.31, moderate. The relationship has been stable: the 1-year correlation (0.36) sits close to the 3-year figure. The 5-year figure is 0.24, and annualized covariance runs at 1661.5 %².
Among the 32 assets we track against AEIS, ESLA sits near the bottom by co-movement, at rank #29. The last year tells two different stories: AEIS led by 110.2 percentage points, +87.0% for AEIS against -23.2% for ESLA. Note the risk asymmetry: ESLA runs 2.7 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.
AEIS vs ESLA: side by side
| AEIS (Advanced Energy Industries, Inc.) | ESLA (Estrella Immunopharma, Inc.) | |
|---|---|---|
| 1-year return | +87.0% | -23.2% |
| 5-year return | +222.9% | -92.6% |
| Volatility (ann.) | 43.9% | 120.6% |
| Beta vs S&P 500 | 1.69 | 1.20 |
| Max drawdown (3Y) | -39.9% | -96.7% |
| Market cap | $11.5B | – |
| P/E (trailing) | 52.4 | – |
| Dividend yield | 0.14% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | AEIS | ESLA |
|---|---|---|
| 2022 | -5.4% | +3.8% |
| 2023 | +27.5% | -89.2% |
| 2024 | +6.6% | +8.1% |
| 2025 | +81.6% | +30.0% |
| 2026 | +37.3% | -53.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AEIS and ESLA good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.31 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between AEIS and ESLA?
Using weekly returns as of 2026-08-27: 0.31 over 3 years, with 0.36 over the last year and 0.24 over 5 years.
Is ESLA a good diversifier for AEIS?
Yes, to a useful degree: a correlation of 0.31 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.31 mean?
A reading of 0.31 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/aeis-vs-esla.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/aeis-vs-esla/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: AEIS correlations · ESLA correlations
