Capital One (COF) Stock Concentration Calculator
Calculator · free · no signup · COFQuantify Capital One 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 Capital One
Capital One (COF) is a public Fintech company, incorporated in Delaware and headquartered in Mclean, VA.
Equity grants at Capital One typically include restricted stock units (RSUs).
Capital One Financial Corporation is an American bank holding company headquartered in Tysons, Virginia, with operations in the United States, Canada, and the United Kingdom. It is one of the largest banks in the United States, one of the largest car finance companies in the United States, and is the largest issuer of credit cards in the United States. It owns the Discover Card, Diners Club, and Pulse payment networks. The company's three business segments are credit cards, consumer banking, and commercial banking. It has approximately 750 bank branches, including over 60 café style locations, and 7,000 ATMs in the United States. The company's corporate headquarters are in the Capital One Tower and its European headquarters are in Trent House, Nottingham.
Source: Wikipedia (CC BY-SA 4.0)
Richard Fairbank and Nigel Morris founded the credit card business inside Signet Bank in 1988 on an information-based strategy: testing offers statistically to price risk more precisely than blanket underwriting allowed. It spun out in 1994 and later added retail deposits through bank acquisitions and auto lending. A 2019 breach exposed data on roughly 100 million applicants. The 2025 acquisition of Discover added a payments network, giving the company card issuing and network rails together. Headquarters are in McLean, Virginia.
Sources: capitalone.com · en.wikipedia.org
Equity comp at Capital One
- 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 Capital One.
If a meaningful share of your net worth sits in COF, 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 COF's option-implied volatility.
All Capital One tools → · Use the generic Stock Concentration Calculator for any company. Diversifying multiple RSU lots? See the lot-by-lot sell order →
Capital One equity questions
- How much COF 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 COF position and weighs selling down (which triggers capital-gains tax now) against hedging (which costs option premium).
- Does Capital One grant ISOs, NSOs, or RSUs?
- Equity compensation at Capital One typically takes the form of restricted stock units (RSUs). Restricted stock units are taxed as ordinary income when they vest.
- Do Capital One RSUs use double-trigger vesting?
- No. Capital One 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.
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OptionsAhoy plans your Capital One equity alongside hedging, vesting, and de-concentration, across bullish, neutral, and bearish market scenarios. Free during beta.