PairBook
HomeNRG › NRG vs SPXC

NRG vs SPXC: Correlation

NRG Energy (NRG) and SPX Technologies, Inc. (SPXC) show a moderate relationship: their 3-year correlation of weekly returns is 0.52.

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

Correlation (3Y)
0.52
moderate
Correlation (1Y)
0.43
last 12 months
Correlation (5Y)
0.42
long-run
Ann. covariance
774.2
%² · weekly, annualized

How correlated are NRG and SPXC?

On 3 years of weekly data the NRG/SPXC correlation comes out at 0.52, moderate. The relationship has been stable: the 1-year correlation (0.43) sits close to the 3-year figure. The 5-year figure is 0.42, and annualized covariance runs at 774.2 %².

By 3-year correlation, SPXC places #9 of the 31 assets tracked against NRG. Correlation aside, the last 12 months split them widely, with SPXC ahead by 28.5 points (-21.8% versus +6.7%).

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.

NRG vs SPXC: side by side

NRG (NRG Energy)SPXC (SPX Technologies, Inc.)
1-year return-21.8%+6.7%
5-year return+191.5%+226.0%
Volatility (ann.)44.4%33.7%
Beta vs S&P 5001.301.20
Max drawdown (3Y)-38.9%-33.5%
Market cap$24.1B$10.3B
P/E (trailing)30.236.1
Dividend yield1.61%0.00%
Sector / categoryUtilitiesUS Listed
Lower P/E: NRG 30.2 vs 36.1Higher yield: NRG 1.61% vs 0.00%Smaller drawdown: SPXC -33.5% vs -38.9%Higher 5y return: SPXC +226.0% vs +191.5%
-22%0%+29%2025-09-052026-08-27
Price paths over the last 12 months, both indexed to 100 at the start (weekly closes). NRG · SPXC

Year-by-year returns

YearNRGSPXC
2022-23.5%+10.0%
2023+69.4%+53.9%
2024+78.6%+44.1%
2025+78.9%+37.5%
2026-27.5%+2.6%

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

Are NRG and SPXC good diversifiers for each other?

Only partially. A correlation of 0.52 means NRG and SPXC share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.

FAQ

What is the correlation between NRG and SPXC?

The NRG/SPXC correlation stands at 0.52 on a 3-year window (1 year: 0.43, 5 years: 0.42), computed from weekly returns as of 2026-08-27.

Is SPXC a good diversifier for NRG?

Only partially. A correlation of 0.52 means NRG and SPXC share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.

What does a correlation of 0.52 mean?

A reading of 0.52 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/nrg-vs-spxc.json

NRG vs SPXC: 3-year weekly correlation 0.52NRG vs SPXC0.52

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

[![NRG vs SPXC correlation](https://www.pairbook.io/api/v1/badge/nrg-vs-spxc.svg)](https://www.pairbook.io/pair/nrg-vs-spxc/)

Free with attribution; caching and terms are described in the API documentation.

Related comparisons

Hubs: NRG correlations · SPXC correlations