Quantinuum Inc. (QNT) Stock Concentration Calculator
Calculator · free · no signup · QNTQuantify Quantinuum Inc. concentration risk. Drawdown impact at 30 / 50 / 70%, with the tax-aware trade-off between selling down and hedging.
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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 Quantinuum Inc.
Quantinuum Inc. (QNT) is a public Hardware company, incorporated in Delaware and headquartered in Broomfield, CO. IPO'd Jun 4, 2026.
Nasdaq IPO Jun 2026; quantum computing hardware.
Equity grants at Quantinuum Inc. typically include incentive stock options (ISOs) and non-qualified stock options (NSOs).
Quantinuum emerged in November 2021 from the merger of Honeywell Quantum Solutions and Cambridge Quantum, combining Honeywell's trapped-ion hardware with Cambridge Quantum's software stack. Headquartered in Broomfield, Colorado, the company builds and sells full-stack quantum computers: its H2 system runs 56 ytterbium qubits with all-to-all connectivity, and its Helios system scales to 98 barium-ion qubits. Software products include Quantum Origin (quantum-enhanced cryptography) and InQuanto (quantum chemistry simulation). Quantinuum reported $30.9 million in 2025 revenue and went public on Nasdaq (QNT) on June 4, 2026, raising $1.68 billion at $60 per share.
Sources:
Equity comp at Quantinuum Inc.
- Quantinuum is a Honeywell majority-owned spinoff (approximately 49% post-IPO voting power retained by Honeywell) with an Up-C corporate structure (a dual-entity arrangement where the public company holds membership units in an operating LLC rather than owning assets directly). The 2023 Equity Incentive Plan includes a one-time liquidity award worth $25 million in equity securities that vests 25% per year over four years from the IPO effective date, conditioned on continued employment. Standard restricted share grants vest 25% per year over four years. Change-in-control acceleration is double-trigger, meaning it requires both a qualifying corporate transaction and either a qualifying termination or a continued-service condition. Section 83(b) elections (a tax form filed within 30 days of a restricted share grant, allowing the recipient to pay income tax at grant-date value rather than waiting for shares to vest) are the sole responsibility of the participant to file.
- Recent share-sale events (industry term: tender offers):
- Jan 2024: $5B implied valuation, led by JPMorgan Chase · honeywell.com
- Sep 2025: $10B implied valuation, led by Honeywell and co-investors including NVIDIA NVentures, Quanta Computer, Mitsui, and Amgen · honeywell.com
Researched 2026-05-28.
OptionsAhoy is an independent tool and is not affiliated with, endorsed by, or sponsored by Quantinuum Inc..
If a meaningful share of your net worth sits in QNT, 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 QNT's option-implied volatility.
All Quantinuum Inc. tools → · Use the generic Stock Concentration Calculator for any company. Diversifying multiple RSU lots? See the lot-by-lot sell order →
Quantinuum Inc. equity questions
- How much QNT 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 QNT position and weighs selling down (which triggers capital-gains tax now) against hedging (which costs option premium).
- Does Quantinuum Inc. grant ISOs, NSOs, or RSUs?
- Equity compensation at Quantinuum Inc. typically takes the form of incentive stock options (ISOs) and non-qualified stock options (NSOs). Incentive stock options can trigger the alternative minimum tax (AMT) when you exercise.
- When did the Quantinuum Inc. IPO lockup expire?
- Quantinuum Inc. (QNT) went public on June 4, 2026. The standard post-IPO lockup runs 180 days, so employee and insider shares generally became sellable around December 1, 2026. Confirm against your own grant paperwork, since some lockups release early or in stages.
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OptionsAhoy plans your Quantinuum Inc. equity alongside hedging, vesting, and de-concentration, across bullish, neutral, and bearish market scenarios. Free during beta.