Southern Company (SO) Stock Concentration Calculator
Calculator · free · no signup · SOQuantify Southern Company concentration risk. Drawdown impact at 30 / 50 / 70%, with the tax-aware trade-off between selling down and hedging.
Beta · invite-only · AlphaLatitude Inc. · Free Tools
Your inputs
Adjust — results update instantly.Position & portfolio
Tax
Most fee-only advisors target ≤10% in any single name. You're at 67%.
Estimates only. Not financial advice.
Most sensitive to: Expected market return (±10% on this input swings best-plan wealth by ±$190,508).
Cost of fully de-concentrating
All three plans sell to 0% (no hedge).Sensitivity. If your expected position return drops below 19.6%/yr, lump-sum (sell everything today) beats every spread plan above.
Have multiple RSU vest lots? The RSU Lot Order Calculator picks which lots to sell first, and on which dates, to divest at the lowest computed tax.
Build your own plan
Toggle below — chart updates live. Sell buttons show the slice.Tech / Software single names hit a 50%+ peak-to-trough drawdown in roughly 1 of every 5 rolling 3-year windows over 2014–2024. Even mega-caps aren’t exempt.
Tax brackets: 2026 · Estimates only — not financial advice.
Estate note. Heirs receive a stepped-up basis at death (§1014), eliminating built-in gain on inherited shares. Older holders who plan to bequeath rather than sell may rationally never de-concentrate.
You sized one position's risk. The beta integrates hedging, sell-down, and tax timing into one optimized plan.
Request beta access →Related calculators: Protect Your Stock Calculator · RSU Lot Order Calculator · Equity Funding Plan Calculator
About Southern Company
Southern Company (SO) is a public Utility company, incorporated in Delaware and headquartered in Atlanta, GA.
Equity grants at Southern Company typically include restricted stock units (RSUs).
Southern Company is an American gas and electric utility holding company based in the Southern United States. It is headquartered in Atlanta, Georgia, with executive offices located in Birmingham, Alabama. As of 2021 it is the second largest utility company in the U.S. in terms of customer base. Through its subsidiaries it serves 9 million gas and electric utility customers in 6 states. Southern Company's regulated regional electric utilities serve a 120,000-square-mile (310,000 km2) territory with 27,000 miles (43,000 km) of distribution lines.
Source: Wikipedia (CC BY-SA 4.0)
Formed in 1945, the utility serves Georgia, Alabama, and Mississippi through subsidiaries including Georgia Power and Alabama Power, plus natural gas distribution across several states. Its defining project was Vogtle units 3 and 4, the first newly constructed American nuclear reactors in decades, which entered service in 2023 and 2024 years late and billions over budget after the Westinghouse bankruptcy. Data center load growth in Georgia has become a central planning variable. Headquarters are in Atlanta.
Sources: southerncompany.com · en.wikipedia.org
Equity comp at Southern Company
- RSUs use single-trigger vesting: shares become yours as each portion vests on schedule, and the value is taxed as ordinary income at that point. No IPO or acquisition is required.
Researched 2026-08-17.
OptionsAhoy is an independent tool and is not affiliated with, endorsed by, or sponsored by Southern Company.
If a meaningful share of your net worth sits in SO, concentration risk is the question. This calculator quantifies drawdown impact at 30 / 50 / 70%, and the trade-off between selling down (tax cost now) versus hedging (option premium drag), auto-filled with SO's option-implied volatility.
All Southern Company tools → · Use the generic Stock Concentration Calculator for any company. Diversifying multiple RSU lots? See the lot-by-lot sell order →
Southern Company equity questions
- How much SO stock is too much?
- There is no single threshold, but the larger the share of your net worth in one stock, the more a single bad year can set back your plans. The calculator above quantifies the drawdown impact at 30, 50, and 70 percent for your SO position and weighs selling down (which triggers capital-gains tax now) against hedging (which costs option premium).
- Does Southern Company grant ISOs, NSOs, or RSUs?
- Equity compensation at Southern Company typically takes the form of restricted stock units (RSUs). Restricted stock units are taxed as ordinary income when they vest.
- Do Southern Company RSUs use double-trigger vesting?
- No. Southern Company restricted stock units (RSUs) use single-trigger vesting: each tranche becomes yours as it vests on schedule, taxed as ordinary income at that point, with no liquidity event required.
One piece of the puzzle.
OptionsAhoy plans your Southern Company equity alongside hedging, vesting, and de-concentration, across bullish, neutral, and bearish market scenarios. Free during beta.