CIEN vs LITE: Correlation
Ciena (CIEN) and Lumentum (LITE) show a moderate relationship: their 3-year correlation of weekly returns is 0.58.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CIEN and LITE?
Across a 3-year window, the weekly returns of CIEN and LITE correlate at 0.58, moderate. The relationship has been stable: the 1-year correlation (0.57) sits close to the 3-year figure. Stretching to 5 years gives 0.59, with an annualized covariance of 1918.3 %².
Few assets follow CIEN as closely as LITE, which ranks #1 of 28 tracked partners. The last year tells two different stories: LITE led by 328.6 percentage points, +331.2% for CIEN against +659.8% for LITE. Across three years, the rolling one-year figure varied moderately, from 0.37 to 0.65.
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.
CIEN vs LITE: side by side
| CIEN (Ciena) | LITE (Lumentum) | |
|---|---|---|
| 1-year return | +331.2% | +659.8% |
| 5-year return | +598.5% | +998.1% |
| Volatility (ann.) | 50.1% | 65.5% |
| Beta vs S&P 500 | 1.59 | 2.36 |
| Max drawdown (3Y) | -47.3% | -50.6% |
| Market cap | $56.6B | $85.8B |
| P/E (trailing) | 133.7 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | Information Technology | Information Technology |
Year-by-year returns
| Year | CIEN | LITE |
|---|---|---|
| 2022 | -33.8% | -50.7% |
| 2023 | -11.7% | +0.5% |
| 2024 | +88.4% | +60.1% |
| 2025 | +175.8% | +339.1% |
| 2026 | +71.0% | +159.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CIEN and LITE good diversifiers for each other?
To a limited degree. At 0.58 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between CIEN and LITE?
Using weekly returns as of 2026-08-27: 0.58 over 3 years, with 0.57 over the last year and 0.59 over 5 years.
Is LITE a good diversifier for CIEN?
To a limited degree. At 0.58 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.58 mean?
A reading of 0.58 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/cien-vs-lite.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/cien-vs-lite/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: CIEN correlations · LITE correlations
