CLFD vs STRL: Correlation
Measured on weekly returns over the past three years, Clearfield, Inc. (CLFD) and Sterling Infrastructure, Inc. (STRL) carry a correlation of 0.51, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CLFD and STRL?
Across a 3-year window, the weekly returns of CLFD and STRL correlate at 0.51, moderate. Lately the two have moved closer together, with the 1-year correlation at 0.76 versus 0.51 over 3 years. Stretching to 5 years gives 0.34, with an annualized covariance of 1677.1 %².
STRL is one of the assets that tracks CLFD most closely: it ranks #3 out of the 12 assets we track against CLFD. Their recent paths diverged sharply: over the last 12 months STRL outperformed by 83.5 percentage points (-8.5% for CLFD against +75.0% for STRL).
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.
CLFD vs STRL: side by side
| CLFD (Clearfield, Inc.) | STRL (Sterling Infrastructure, Inc.) | |
|---|---|---|
| 1-year return | -8.5% | +75.0% |
| 5-year return | -35.2% | +2095.9% |
| Volatility (ann.) | 49.0% | 66.9% |
| Beta vs S&P 500 | 1.34 | 2.13 |
| Max drawdown (3Y) | -48.0% | -51.1% |
| Market cap | $0.4B | $15.5B |
| P/E (trailing) | 103.3 | 36.5 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CLFD | STRL |
|---|---|---|
| 2022 | +11.5% | +24.7% |
| 2023 | -69.1% | +168.1% |
| 2024 | +6.6% | +91.6% |
| 2025 | -6.0% | +81.8% |
| 2026 | +2.8% | +65.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CLFD and STRL good diversifiers for each other?
To a limited degree. At 0.51 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 CLFD and STRL?
As of 2026-08-27, the correlation of weekly returns between CLFD and STRL is 0.51 over 3 years, 0.76 over 1 year and 0.34 over 5 years.
Is STRL a good diversifier for CLFD?
To a limited degree. At 0.51 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 0.51 mean?
A reading of 0.51 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/clfd-vs-strl.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/clfd-vs-strl/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: CLFD correlations · STRL correlations
