PairBook
HomeNPCE › NPCE vs SO

NPCE vs SO: Correlation

Neuropace, Inc. (NPCE) and Southern Company (SO) show a negative relationship: their 3-year correlation of weekly returns is -0.24.

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

Correlation (3Y)
-0.24
negative
Correlation (1Y)
-0.09
last 12 months
Correlation (5Y)
-0.10
long-run
Ann. covariance
-273.0
%² · weekly, annualized

How correlated are NPCE and SO?

Across a 3-year window, the weekly returns of NPCE and SO correlate at -0.24, negative, meaning they tend to move in opposite directions. The past 12 months show a tighter link (-0.09) than the 3-year average (-0.24). Stretching to 5 years gives -0.10, with an annualized covariance of -273.0 %².

Among the 11 assets we track against NPCE, SO sits near the bottom by co-movement, at rank #9. Their recent paths diverged sharply: over the last 12 months NPCE outperformed by 60.5 percentage points (+59.1% for NPCE against -1.4% for SO). One caveat on sizing: NPCE is 4.2 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.

NPCE vs SO: side by side

NPCE (Neuropace, Inc.)SO (Southern Company)
1-year return+59.1%-1.4%
5-year return-32.7%+62.6%
Volatility (ann.)69.9%16.5%
Beta vs S&P 5000.85-0.02
Max drawdown (3Y)-66.3%-15.0%
Market cap$0.5B$102.4B
P/E (trailing)21.7
Dividend yield0.00%3.32%
Sector / categoryUS ListedUtilities
Higher yield: SO 3.32% vs 0.00%Smaller drawdown: SO -15.0% vs -66.3%Higher 5y return: SO +62.6% vs -32.7%
-7%0%+89%2025-09-052026-08-27
Twelve months of weekly closes, each series rebased to 100. NPCE · SO

Year-by-year returns

YearNPCESO
2022-85.2%+8.2%
2023+591.9%+2.2%
2024+8.5%+21.7%
2025+38.0%+9.5%
2026-8.5%+4.6%

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

Are NPCE and SO good diversifiers for each other?

Yes. With a correlation of -0.24, NPCE and SO have moved largely independently, which makes them a genuinely diversifying pair by historical standards.

FAQ

What is the correlation between NPCE and SO?

As of 2026-08-27, the correlation of weekly returns between NPCE and SO is -0.24 over 3 years, -0.09 over 1 year and -0.10 over 5 years.

Is SO a good diversifier for NPCE?

Yes. With a correlation of -0.24, NPCE and SO have moved largely independently, which makes them a genuinely diversifying pair by historical standards.

What does a correlation of -0.24 mean?

A reading of -0.24 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/npce-vs-so.json

NPCE vs SO: 3-year weekly correlation -0.24NPCE vs SO-0.24

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

[![NPCE vs SO correlation](https://www.pairbook.io/api/v1/badge/npce-vs-so.svg)](https://www.pairbook.io/pair/npce-vs-so/)

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

Related comparisons

Hubs: NPCE correlations · SO correlations