SO volatility The Southern Company
IV30Implied volatility interpolated to a constant 30-day horizon from the expirations around it, so different stocks and dates can be compared fairly.21.5%
HV20How much the stock actually moved, measured from daily closing prices over a past window (annualized). Compare with implied volatility to see what the options market priced versus what happened.16.2%
HV6014.9%
IV − HV20 spread
+5.3pt
Universe percentileWhere this IV30 ranks across all securities we cover today (a cross-sectional comparison, not the stock's own history).
9
Own-history percentileWhere today's IV30 sits versus its own daily history — 80 means higher than roughly 80% of recorded observations for that period.
28/60 days recorded
Cboe delayed options data · as of 12:41 UTC · How these are computed
IV term structure
At-the-money implied volatility for each listed expiration, plotted by days remaining.
| Expires | DTE | ATM IV | 25Δ skewThe IV gap between 25-delta puts and 25-delta calls for one expiration. Positive skew means downside protection is priced richer than upside exposure. | Implied move |
|---|---|---|---|---|
| Oct 23, 2026 | 4 | 19.0% | +1.1pt | ±2.1% |
| Oct 30, 2026 | 11 | 18.6% | +2.7pt | ±2.9% |
| Nov 06, 2026 | 18 | 22.2% | -0.4pt | ±4.3% |
| Nov 13, 2026 | 25 | 23.4% | +5.9pt | ±5.2% |
| Nov 20, 2026 | 32 | 20.8% | +2.2pt | ±5.5% |
| Nov 27, 2026 | 39 | 22.3% | +2.6pt | ±6.2% |
| Dec 18, 2026 | 60 | 19.9% | +0.8pt | ±6.7% |
| Jan 15, 2027 | 88 | 18.9% | +3.2pt | ±7.6% |
| Feb 19, 2027 | 123 | 19.3% | +3.3pt | ±9.2% |
| Mar 19, 2027 | 151 | 19.4% | +1.7pt | ±10.0% |
| May 21, 2027 | 214 | 19.0% | +3.0pt | ±11.7% |
| Jun 17, 2027 | 241 | 19.3% | +3.3pt | ±12.5% |
| Sep 17, 2027 | 333 | 21.0% | +1.7pt | ±15.7% |
| Jan 21, 2028 | 459 | 20.2% | +2.2pt | ±17.4% |
Volatility smile — Nov 20, 2026
Implied volatility by strike. The tilt toward puts (left side higher) is the skew: downside protection priced richer than upside.
callsputs
Implied vs realized, daily record
IV30HV20