SO vs SPT: Correlation
How closely do Southern Company (SO) and Sprout Social, Inc (SPT) trade together? Their weekly returns over three years give a correlation of -0.28, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SO and SPT?
Across a 3-year window, the weekly returns of SO and SPT correlate at -0.28, negative, meaning they tend to move in opposite directions. Little has changed lately, as the 1-year reading of -0.35 lands near the 3-year figure. Stretching to 5 years gives -0.09, with an annualized covariance of -260.9 %².
SPT is close to the least connected end of SO's tracked universe, ranking #47 of 48. The last year tells two different stories: SO led by 28.2 percentage points, -1.4% for SO against -29.6% for SPT. Risk is not evenly split, since SPT carries 3.4 times the volatility of the other side.
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.
SO vs SPT: side by side
| SO (Southern Company) | SPT (Sprout Social, Inc) | |
|---|---|---|
| 1-year return | -1.4% | -29.6% |
| 5-year return | +62.6% | -91.0% |
| Volatility (ann.) | 16.5% | 55.5% |
| Beta vs S&P 500 | -0.02 | 1.43 |
| Max drawdown (3Y) | -15.0% | -92.5% |
| Market cap | $102.4B | $0.7B |
| P/E (trailing) | 21.7 | – |
| Dividend yield | 3.32% | 0.00% |
| Sector / category | Utilities | US Listed |
Year-by-year returns
| Year | SO | SPT |
|---|---|---|
| 2022 | +8.2% | -37.7% |
| 2023 | +2.2% | +8.8% |
| 2024 | +21.7% | -50.0% |
| 2025 | +9.5% | -63.3% |
| 2026 | +4.6% | -2.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SO and SPT good diversifiers for each other?
Yes. With a correlation of -0.28, SO and SPT have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between SO and SPT?
The SO/SPT correlation stands at -0.28 on a 3-year window (1 year: -0.35, 5 years: -0.09), computed from weekly returns as of 2026-08-27.
Is SPT a good diversifier for SO?
Yes. With a correlation of -0.28, SO and SPT have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.28 mean?
A reading of -0.28 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
$ curl https://www.pairbook.io/api/v1/pairs/so-vs-spt.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/so-vs-spt/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: SO correlations · SPT correlations
