DDOG vs SO: Correlation
Measured on weekly returns over the past three years, Datadog (DDOG) and Southern Company (SO) carry a correlation of -0.25, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are DDOG and SO?
Over the past 3 years, DDOG and SO moved with a correlation of -0.25, which is negative, meaning they tend to move in opposite directions. Recent behaviour matches the longer record: -0.15 over 1 year against -0.25 over 3. Over 5 years the correlation is -0.08, and the annualized covariance of weekly returns is -225.8 %².
SO is close to the least connected end of DDOG's tracked universe, ranking #26 of 30. The last year tells two different stories: DDOG led by 85.8 percentage points, +84.4% for DDOG against -1.4% for SO. Do not treat this figure as fixed: across three years the rolling one-year correlation ranged all the way from -0.51 to 0.04. Note the risk asymmetry: DDOG runs 3.3 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
DDOG vs SO: side by side
| DDOG (Datadog) | SO (Southern Company) | |
|---|---|---|
| 1-year return | +84.4% | -1.4% |
| 5-year return | +77.8% | +62.6% |
| Volatility (ann.) | 54.6% | 16.5% |
| Beta vs S&P 500 | 1.37 | -0.02 |
| Max drawdown (3Y) | -48.6% | -15.0% |
| Market cap | $87.2B | $102.4B |
| P/E (trailing) | 458.4 | 21.7 |
| Dividend yield | 0.00% | 3.32% |
| Sector / category | Information Technology | Utilities |
Year-by-year returns
| Year | DDOG | SO |
|---|---|---|
| 2022 | -58.7% | +8.2% |
| 2023 | +65.1% | +2.2% |
| 2024 | +17.7% | +21.7% |
| 2025 | -4.8% | +9.5% |
| 2026 | +78.6% | +4.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are DDOG and SO good diversifiers for each other?
By historical standards, yes. A correlation of -0.25 means the two rarely move for the same reasons.
FAQ
What is the correlation between DDOG and SO?
The DDOG/SO correlation stands at -0.25 on a 3-year window (1 year: -0.15, 5 years: -0.08), computed from weekly returns as of 2026-08-27.
Is SO a good diversifier for DDOG?
By historical standards, yes. A correlation of -0.25 means the two rarely move for the same reasons.
What does a correlation of -0.25 mean?
A reading of -0.25 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
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Related comparisons
Hubs: DDOG correlations · SO correlations
