ALMS vs CIEN: Correlation
Alumis Inc. (ALMS) and Ciena (CIEN) show a negative relationship: their 3-year correlation of weekly returns is -0.21.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ALMS and CIEN?
On 3 years of weekly data the ALMS/CIEN correlation comes out at -0.21, negative, meaning they tend to move in opposite directions. Recent behaviour matches the longer record: -0.18 over 1 year against -0.21 over 3. The 5-year figure is n/a, and annualized covariance runs at -1480.3 %².
Among the 92 assets we track against ALMS, CIEN ranks #44 by 3-year correlation. The last year tells two different stories: ALMS led by 40.5 percentage points, +371.7% for ALMS against +331.2% for CIEN. Risk is not evenly split, since ALMS carries 2.6 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.
ALMS vs CIEN: side by side
| ALMS (Alumis Inc.) | CIEN (Ciena) | |
|---|---|---|
| 1-year return | +371.7% | +331.2% |
| 5-year return | n/a | +598.5% |
| Volatility (ann.) | 130.0% | 50.1% |
| Beta vs S&P 500 | -1.50 | 1.59 |
| Max drawdown (3Y) | -78.9% | -47.3% |
| Market cap | $3.0B | $56.6B |
| P/E (trailing) | – | 133.7 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | Information Technology |
Year-by-year returns
| Year | ALMS | CIEN |
|---|---|---|
| 2022 | – | -33.8% |
| 2023 | – | -11.7% |
| 2024 | – | +88.4% |
| 2025 | +24.2% | +175.8% |
| 2026 | +137.8% | +71.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ALMS and CIEN good diversifiers for each other?
Yes: at -0.21, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between ALMS and CIEN?
Using weekly returns as of 2026-08-27: -0.21 over 3 years, with -0.18 over the last year and n/a over 5 years.
Is CIEN a good diversifier for ALMS?
Yes: at -0.21, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.21 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/alms-vs-cien.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/alms-vs-cien/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: ALMS correlations · CIEN correlations
