PairBook
HomeBDC › BDC vs PLPC

BDC vs PLPC: Correlation

Measured on weekly returns over the past three years, Belden Inc (BDC) and Preformed Line Products Company (PLPC) carry a correlation of 0.47, a moderate link.

Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology

Correlation (3Y)
0.47
moderate
Correlation (1Y)
0.53
last 12 months
Correlation (5Y)
0.46
long-run
Ann. covariance
770.0
%² · weekly, annualized

How correlated are BDC and PLPC?

Across a 3-year window, the weekly returns of BDC and PLPC correlate at 0.47, moderate. The relationship has been stable: the 1-year correlation (0.53) sits close to the 3-year figure. Stretching to 5 years gives 0.46, with an annualized covariance of 770.0 %².

Among the 13 assets we track against BDC, PLPC ranks #6 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months PLPC outperformed by 131.0 percentage points (-9.6% for BDC against +121.4% for PLPC).

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.

BDC vs PLPC: side by side

BDC (Belden Inc)PLPC (Preformed Line Products Company)
1-year return-9.6%+121.4%
5-year return+113.6%+514.6%
Volatility (ann.)39.2%42.3%
Beta vs S&P 5001.170.76
Max drawdown (3Y)-35.8%-38.5%
Market cap$4.7B$2.1B
P/E (trailing)19.546.4
Dividend yield0.17%0.20%
Sector / categoryUS ListedUS Listed
Lower P/E: BDC 19.5 vs 46.4Higher yield: PLPC 0.20% vs 0.17%Smaller drawdown: BDC -35.8% vs -38.5%Higher 5y return: PLPC +514.6% vs +113.6%
-22%0%+144%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. BDC · PLPC

Year-by-year returns

YearBDCPLPC
2022+9.7%+29.9%
2023+7.7%+61.8%
2024+46.1%-3.9%
2025+3.7%+62.6%
2026+3.0%+104.1%

Calendar-year price returns; the current year is year-to-date as of the data date above.

Are BDC and PLPC good diversifiers for each other?

Yes, to a useful degree: a correlation of 0.47 leaves real independence between the two, which historically damped combined volatility.

FAQ

What is the correlation between BDC and PLPC?

Using weekly returns as of 2026-08-27: 0.47 over 3 years, with 0.53 over the last year and 0.46 over 5 years.

Is PLPC a good diversifier for BDC?

Yes, to a useful degree: a correlation of 0.47 leaves real independence between the two, which historically damped combined volatility.

What does a correlation of 0.47 mean?

On the −1 to +1 scale, 0.47 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

JSON API · no key required
$ curl https://www.pairbook.io/api/v1/pairs/bdc-vs-plpc.json

BDC vs PLPC: 3-year weekly correlation 0.47BDC vs PLPC0.47

Embed this badge (it refreshes with the data), with attribution:

[![BDC vs PLPC correlation](https://www.pairbook.io/api/v1/badge/bdc-vs-plpc.svg)](https://www.pairbook.io/pair/bdc-vs-plpc/)

The core API is free. Terms and every endpoint in the API documentation.

Related comparisons

Hubs: BDC correlations · PLPC correlations