ExxonMobil (XOM) Stock Concentration Calculator
Calculator · free · no signup · XOMQuantify ExxonMobil 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 ExxonMobil
ExxonMobil (XOM) is a public Energy company, incorporated in Texas and headquartered in Spring, TX.
Equity grants at ExxonMobil typically include restricted stock units (RSUs).
ExxonMobil Holdings Corporation is an American multinational oil and gas corporation headquartered in Spring, Texas, a suburb of Houston. Founded as the largest direct successor of John D. Rockefeller's Standard Oil, the company was formed in 1999, with the merger of Exxon and Mobil. It is vertically integrated across the entire oil and gas industry, as well as within its chemicals division, which produces plastic, synthetic rubber, and other chemical products. As the largest U.S.-based oil and gas company, ExxonMobil is the eighth-largest company by revenue in the U.S. and 13th-largest in the world. It is also the largest investor-owned oil company in the world.
Source: Wikipedia (CC BY-SA 4.0)
Standard Oil's 1911 antitrust breakup produced Jersey Standard and Socony, which became Exxon and Mobil and merged again in 1999. The company explores, produces, refines, and sells petroleum and chemicals, with major positions in the Permian Basin and offshore Guyana, the latter among the largest oil discoveries of the past decade. The 2023 Pioneer Natural Resources acquisition consolidated Permian acreage. Chemicals and refining margins buffer crude price swings. Headquarters are in Spring, Texas.
Sources: corporate.exxonmobil.com · en.wikipedia.org
Equity comp at ExxonMobil
- 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 ExxonMobil.
If a meaningful share of your net worth sits in XOM, 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 XOM's option-implied volatility.
All ExxonMobil tools → · Use the generic Stock Concentration Calculator for any company. Diversifying multiple RSU lots? See the lot-by-lot sell order →
ExxonMobil equity questions
- How much XOM 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 XOM position and weighs selling down (which triggers capital-gains tax now) against hedging (which costs option premium).
- Does ExxonMobil grant ISOs, NSOs, or RSUs?
- Equity compensation at ExxonMobil typically takes the form of restricted stock units (RSUs). Restricted stock units are taxed as ordinary income when they vest.
- Do ExxonMobil RSUs use double-trigger vesting?
- No. ExxonMobil 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 ExxonMobil equity alongside hedging, vesting, and de-concentration, across bullish, neutral, and bearish market scenarios. Free during beta.