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BESS vs PWR: Correlation

Bimergen Energy Corporation (BESS) and Quanta Services (PWR) show a negative relationship: their 3-year correlation of weekly returns is -0.16.

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

Correlation (3Y)
-0.16
negative
Correlation (1Y)
-0.07
last 12 months
Correlation (5Y)
-0.13
long-run
Ann. covariance
-28034.2
%² · weekly, annualized

How correlated are BESS and PWR?

Over the past 3 years, BESS and PWR moved with a correlation of -0.16, which is negative, meaning they tend to move in opposite directions. Recent behaviour matches the longer record: -0.07 over 1 year against -0.16 over 3. Over 5 years the correlation is -0.13, and the annualized covariance of weekly returns is -28034.2 %².

By 3-year correlation, PWR places #21 of the 51 assets tracked against BESS. The last year tells two different stories: PWR led by 113.5 percentage points, -50.4% for BESS against +63.1% for PWR. One caveat on sizing: BESS is 151.6 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.

BESS vs PWR: side by side

BESS (Bimergen Energy Corporation)PWR (Quanta Services)
1-year return-50.4%+63.1%
5-year return-87.7%+506.1%
Volatility (ann.)5140.2%33.9%
Beta vs S&P 50017.011.29
Max drawdown (3Y)-99.5%-33.9%
Market cap$93.5B
P/E (trailing)70.4
Dividend yield0.00%0.07%
Sector / categoryUS ListedIndustrials
Higher yield: PWR 0.07% vs 0.00%Smaller drawdown: PWR -33.9% vs -99.5%Higher 5y return: PWR +506.1% vs -87.7%
-61%0%+107%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. BESS · PWR

Year-by-year returns

YearBESSPWR
2022-30.0%+24.6%
2023-14.3%+51.7%
2024+16.7%+46.6%
2025+7.1%+33.7%
2026-70.5%+47.4%

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

Are BESS and PWR good diversifiers for each other?

By historical standards, yes. A correlation of -0.16 means the two rarely move for the same reasons.

FAQ

What is the correlation between BESS and PWR?

As of 2026-08-27, the correlation of weekly returns between BESS and PWR is -0.16 over 3 years, -0.07 over 1 year and -0.13 over 5 years.

Is PWR a good diversifier for BESS?

By historical standards, yes. A correlation of -0.16 means the two rarely move for the same reasons.

What does a correlation of -0.16 mean?

A reading of -0.16 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

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

BESS vs PWR: 3-year weekly correlation -0.16BESS vs PWR-0.16

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Related comparisons

Hubs: BESS correlations · PWR correlations