The Southern Company (SO)
Overview · Option chain · Volatility · Expected-move history · Earnings
Cboe delayed options data · as of 00:38 UTC · Figures derived from the full chain (912 contracts, 15 expirations) · IV own-history percentile appears after 60 recorded days (3 so far)
Expected move — Sep 18, 2026 (16 days)
Methodology →Read from option prices: the at-the-money straddle costs this much, so the market is pricing a move of about that size in either direction by this date. It is an estimate of movement, not a prediction of direction.
Options are pricing a move of about ±2.8% (range 84.90–89.80) by Sep 18, 2026. ATM straddle: 2.45 @ strike 87.5 · ATM IV: 16.4%.
Probability distribution
Model & assumptions →The curve shows where a lognormal model, fed with current implied volatility, puts the range of outcomes at this expiration. Shaded: the expected-move band.
| Level | vs price | P(above)Model-estimated chance the stock finishes above a level at expiration, derived from current IV under a lognormal model with stated assumptions — an estimate, not a prediction. | P(below) |
|---|---|---|---|
| 78.61 | -10% | 99.9% | 0.1% |
| 82.98 | -5% | 93.0% | 7.0% |
| 87.35 | +0% | 49.3% | 50.7% |
| 91.72 | +5% | 7.6% | 92.4% |
| 96.09 | +10% | 0.3% | 99.7% |
Model-estimated probabilities of finishing above/below each level at expiration — estimates under stated assumptions, not predictions.
Probability explorer
Drag the slider to any level and see the model-estimated chance the stock finishes above or below it at the selected expiration.
Horizon: Sep 18, 2026 · lognormal model, zero drift — an estimate, not a prediction. Assumptions
Expirations
Open the chain →| Expires | DTEDays to expiration, in calendar days. | Implied move | ATM IV | Open int. |
|---|---|---|---|---|
| Sep 04, 2026 | 2 | ±1.6% | 24.4% | 4,962 |
| Sep 11, 2026 | 9 | ±3.1% | 23.7% | 2,108 |
| Sep 18, 2026 | 16 | ±2.8% | 16.4% | 33.7K |
| Sep 25, 2026 | 23 | ±4.3% | 20.8% | 1,095 |
| Oct 02, 2026 | 30 | ±4.2% | 17.7% | 2,361 |
| Oct 09, 2026 | 37 | ±5.3% | 20.3% | 38 |
| Oct 16, 2026 | 44 | ±4.8% | 16.8% | 5,629 |
| Nov 20, 2026 | 79 | ±7.3% | 18.9% | 13.5K |
| Dec 18, 2026 | 107 | ±8.4% | 19.2% | 10.2K |
| Jan 15, 2027 | 135 | ±9.3% | 18.8% | 21.2K |
| Feb 19, 2027 | 170 | ±10.6% | 18.9% | 734 |
| Mar 19, 2027 | 198 | ±11.0% | 18.5% | 10.8K |
Open interest by strike — Sep 18
Where option positions are concentrated. Teal bars are calls, red bars are puts; the dashed line is the current price.
Largest open-interest concentrations (all expirations ≤ 60 days): 100 C · 6,51495 C · 4,82285 P · 4,75990 P · 4,080110 C · 2,890
IV term structure
Volatility page →At-the-money implied volatility for each expiration. A hump around a date often marks a scheduled event the market is pricing.
When does open interest expire?
Implied vs realized volatility
HV from our stored daily closes (annualized); IV30 interpolated from the chain. Method
Price, last 60 sessions
Track record
Full history →Every trading day we record what the options market is pricing for each expiration — before the outcome is known. Once expirations start resolving, this section compares expected versus actual, and the record is never rewritten. Recording since Aug 31, 2026.
Past earnings reactions
Avg |reaction| 2.0% · median 1.6% (20 reports) — two-session close-to-close window; definition
About The Southern Company
The Southern Company operates as an energy utility, primarily involved in the production, transmission, and distribution of electricity. Its operations are segmented into Gas Distribution Operations, Gas Pipeline Investments, Wholesale Gas Services, and Gas Marketing Services. The company also undertakes the development, construction, acquisition, ownership, and management of various power generation assets, including renewable energy ventures, and supplies electricity to the wholesale market. Complementing its power business, it distributes natural gas in Illinois, Georgia, Virginia, and Tennessee, while also offering gas marketing services, wholesale gas services, and managing gas pipeline investments. Its extensive portfolio of generating assets includes 30 hydroelectric, 24 fossil fuel, three nuclear, 13 combined cycle/cogeneration, 45 solar, 15 wind, one fuel cell, and four battery storage facilities. In terms of natural gas infrastructure, the company builds, operates, and maintains 76,289 miles of pipelines and 14 storage facilities with a total capacity of 157 billion cubic feet, delivering natural gas to residential, commercial, and industrial clients. The Southern Company
Utilities · Regulated Electric · NYSE · Profile: Financial Modeling Prep
SO news
All news →Grayscale Just Launched the First-Ever ETF for Zcash (ZEC). Here's Why That's Big News for Crypto Investors.
Yahoo Finance · Sep 02, 21:03 UTC ↗Is Charles Schwab Stock Underperforming the S&P 500?
Yahoo Finance · Sep 02, 21:03 UTC ↗Riverwater Partners Bought Werner Enterprises (WERN) Before the Analyst Upgrade Cycle
Yahoo Finance · Sep 02, 21:03 UTC ↗HPE follows in Dell’s footsteps as it rides the AI server boom to a big earnings beat
Unlike Dell, HPE focuses on enterprise and sovereign customers, which one analyst noted have a better profit profile.
MarketWatch · Sep 02, 20:42 UTC ↗Snowflake’s stock soars as the company blows away estimates with its AI-fueled forecast
Companies looking to build AI tools on top of their data are turning to Snowflake, driving robust revenue growth.
MarketWatch · Sep 02, 20:14 UTC ↗Related securities — Utilities
VST · IV 42.4%OKLO · IV 69.2%NEE · IV 21.2%CEG · IV 39.8%DUK · IV 16.5%AEP · IV 18.3%