BAND vs SILC: Correlation
How closely do Bandwidth Inc. (BAND) and Silicom Ltd (SILC) trade together? Their weekly returns over three years give a correlation of 0.39, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BAND and SILC?
Across a 3-year window, the weekly returns of BAND and SILC correlate at 0.39, moderate. The past 12 months show a tighter link (0.57) than the 3-year average (0.39). Stretching to 5 years gives 0.38, with an annualized covariance of 1971.8 %².
By 3-year correlation, SILC places #8 of the 15 assets tracked against BAND. Their recent paths diverged sharply: over the last 12 months BAND outperformed by 56.1 percentage points (+249.2% for BAND against +193.1% for SILC). One caveat on sizing: BAND is 1.7 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
BAND vs SILC: side by side
| BAND (Bandwidth Inc.) | SILC (Silicom Ltd) | |
|---|---|---|
| 1-year return | +249.2% | +193.1% |
| 5-year return | -50.5% | +6.1% |
| Volatility (ann.) | 93.1% | 54.8% |
| Beta vs S&P 500 | 1.91 | 0.98 |
| Max drawdown (3Y) | -52.9% | -56.5% |
| Market cap | $1.7B | $0.3B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BAND | SILC |
|---|---|---|
| 2022 | -68.0% | -18.3% |
| 2023 | -36.9% | -57.1% |
| 2024 | +17.6% | -9.9% |
| 2025 | -9.2% | -9.9% |
| 2026 | +235.6% | +224.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BAND and SILC good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.39 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between BAND and SILC?
Using weekly returns as of 2026-08-27: 0.39 over 3 years, with 0.57 over the last year and 0.38 over 5 years.
Is SILC a good diversifier for BAND?
Yes, to a useful degree: a correlation of 0.39 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.39 mean?
On the −1 to +1 scale, 0.39 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/band-vs-silc.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/band-vs-silc/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: BAND correlations · SILC correlations
