SO·The Southern Company

Realized volatility (21d)

14.3% 31st pct

Below its peak

-16.0%

vs 200-day average

-9.1%

Up days (1y)

49%

The Southern Company is currently running 14.3% annualised volatility over the last 21 sessions. Measured against SO's own 13 years of daily returns rather than a market-wide average, that is the 31st percentile — on the quiet side for this stock, against a typical reading of 16.3%. The distinction matters because a number that looks calm for one stock is turbulent for another, and the absolute figure on its own tells you neither.

SO is trading -16.0% below its running peak. Across 12 full years on file, its median worst-drawdown-in-a-year was -14.1%, and the deepest was -38.9% in 2020. The current drawdown is already deeper than this stock's typical annual low point, which puts it in the part of its range where past recoveries began — and where past declines also continued.

Price sits -9.1% from its 200-day moving average. Against every other day in its history, that gap ranks at the 5th percentile — a narrower gap than it typically runs. Over the past year SO closed higher on 49% of sessions, and it is currently 3 sessions into a rising streak.

On October specifically: over 13 years of records, SO finished the month higher 10 of 13 times, with a median return of +1.7% and an average of +2.1%. Its strongest month historically has been March at +3.0% on average, its weakest August at -2.1%. Seasonality is a weak signal on its own — a decade is a small sample and regimes change — but it is a real distribution rather than a rule of thumb.

Overnight risk is measurable too: SO has opened more than 2% away from the prior close in 33 of 3,267 sessions (1.0% of the time), with the largest gaps running +4.9% and -3.1%. For anyone holding through an event, that rate is a better guide to overnight exposure than the intraday range.

Across the last 3 dated reports on file, SO moved an average of 0.8% in the session after earnings, closing higher 2 of those 3 times, with a median move of +0.1% and a largest of -1.3%.

All figures computed from 3,268 daily closes between 2013-10-07 and 2026-10-05, split-adjusted, recomputed daily. Percentiles are against SO's own 13-year history, not a peer group or index.