Southern Company (SO) — Daily Price Character
Historical session stats from dividend-adjusted prices: win rate, streaks, record days, weekday patterns, and (when available) how often the stock was green on S&P 500 green days.
Archetype
Steady
Low daily volatility — small, predictable daily moves.
Win rate
46.7%
5207 green · 4676 red · 1271 flat · 11154 sessions
Current streak
2 red
As of Apr 7, 2026
Max win / lose streak
15 / 10 days
Win streak return: +13.17% · Lose: 8.17%
Median / σ daily
+0.000% · 1.265%
Avg green +1.00% · avg red 0.97%
Extreme days (>3%)
2.5%
140 up · 142 down
History from Jan 4, 1982 through Apr 7, 2026 · 11154 trading days with returns.
Trailing year — daily returns (calendar)
Apr 8, 2025 – Apr 7, 2026 · Mon–Fri sessions only
Monday–Friday — average return
Average dividend-adjusted return on that weekday (green / red by sign). Green/red day rule: ±0.01% vs prior close.
Monday–Friday — win rate
Share of sessions that closed green on that weekday. Bars are green at or above 50%, red below 50%.
Top green days
Largest single-session gains (dividend-adjusted), by historical return.
| Date | Return |
|---|---|
| Mar 17, 2020 | +18.77% |
| Oct 20, 1987 | +13.87% |
| Mar 24, 2020 | +13.42% |
| Oct 13, 2008 | +11.10% |
| Apr 6, 2020 | +10.22% |
| Mar 26, 2020 | +9.97% |
| Jul 24, 2002 | +9.13% |
| Oct 28, 2008 | +9.02% |
| Oct 21, 1987 | +8.65% |
| Oct 23, 2008 | +7.88% |
| Apr 20, 1999 | +7.16% |
| Oct 10, 2002 | +6.95% |
| Mar 15, 2001 | +6.81% |
| Oct 20, 2008 | +6.80% |
| Mar 15, 2000 | +6.20% |
| Jul 30, 2002 | +6.17% |
| Apr 15, 1987 | +6.17% |
| Mar 4, 2020 | +6.11% |
| Mar 2, 2020 | +5.90% |
| Jan 6, 2003 | +5.80% |
Worst red days
Largest single-session losses; "Days to recovery" counts trading sessions until close recovered the prior peak (dividend-adjusted).
| Date | Return | Days to recovery |
|---|---|---|
| Oct 19, 1987 | 18.21% | 2 |
| Mar 16, 2020 | 11.76% | 1 |
| Mar 12, 2020 | 10.28% | 19 |
| Mar 19, 2020 | 8.98% | 6 |
| Mar 20, 2020 | 8.90% | 4 |
| Nov 12, 2002 | 8.50% | 19 |
| Apr 1, 2020 | 7.39% | 3 |
| Jan 4, 2001 | 7.21% | 31 |
| Oct 9, 2002 | 7.05% | 8 |
| Mar 9, 2020 | 7.04% | 278 |
| Mar 23, 2020 | 6.76% | 1 |
| Oct 13, 1989 | 6.67% | 4 |
| Mar 31, 2020 | 6.62% | 6 |
| Apr 7, 1987 | 6.45% | 423 |
| Mar 11, 2020 | 6.19% | 158 |
| Jan 11, 2001 | 5.50% | 8 |
| Oct 9, 2008 | 5.39% | 2 |
| Oct 15, 2008 | 5.35% | 3 |
| Apr 15, 2020 | 5.27% | 34 |
| Jun 11, 2020 | 5.25% | 83 |
Frequently asked questions
What is the daily win rate for Southern Company (SO)?
- Historically, Southern Company (SO) closed green on 46.7% of trading days (5207 green, 4676 red, 1271 flat), using dividend-adjusted closes and a ±0.01% threshold for green vs red.
What is the current winning or losing streak for Southern Company (SO)?
- As of 2026-04-07, Southern Company (SO) is on a 2-day losing streak (consecutive green or red days by the same rules, ignoring trailing flat days).
What does Steady, Balanced, or Explosive mean for Southern Company (SO)?
- We label Southern Company (SO) as "steady" based on the sample standard deviation of daily returns: Low daily volatility — small, predictable daily moves.
What were the best and worst single trading days for Southern Company (SO)?
- Largest single-day gain: +18.77%. Largest single-day loss: 18.21%. Tables on this page list the top record green and red days.
What counts as an "extreme" daily move for Southern Company (SO)?
- We treat a day as extreme if the absolute dividend-adjusted daily return exceeds 3%. About 2.5% of trading days for Southern Company (SO) were extreme (140 up, 142 down).
Data & methodology
How are green, red, and flat days defined?
- We use dividend-adjusted (or close-to-close for non-equity) daily returns. Green: return ≥ +0.01%. Red: return ≤ −0.01%. Flat: between those bounds.
How is the current streak calculated?
- We count consecutive green or consecutive red days using the same thresholds. If the most recent session is flat, we skip trailing flat days and measure from the last non-flat close.
What does “vs S&P 500” mean?
- On sessions where the S&P 500 (^GSPC) was green, we report how often this stock was also green. Shown only for USD equities when benchmark data exists and the symbol is not the index itself.
Where does the archetype come from?
- Sample standard deviation of daily returns: low → Steady, high → Explosive, otherwise Balanced. Labels describe typical daily volatility, not quality of the investment.