Quantinuum Inc. (QNT) NSO Exercise Calculator
Calculator · free · no signup · QNTPlan your Quantinuum Inc. NSO exercise (federal, state, FICA) and compare sell-vs-hold for long-term capital gains.
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Your grant
Tax inputs
Hold strategy
Best after-tax payout — at year 1
$198,990
Sell + invest wins by $20,773 over Hold 1 yr.
Estimates only. Not financial advice.
Sell + invest
Best payout| Bargain element (sale − strike) | $350,000 |
| Federal | |
| State | |
| Medicare | −$5,075 |
| Additional Medicare | −$3,150 |
| Market gain over 1 yr at 10.0% | $18,564 |
| LTCG on diversified gain (fed + state + NIIT) | −$5,217 |
| Net at year 1 | $198,990 |
Sell every share immediately; invest the after-tax cash at the market return for 1 yr, then liquidate. Diversified — no single-stock concentration risk.
Exercise + hold 1 yr
| Sale proceeds (year 1) | |
| LTCG tax (federal + state + NIIT) | $0 |
| Net at year 1 | $178,216 |
Sold 2,679 shares at exercise to cover strike + tax; 2,321 shares held 1 yr for LTCG.
Social Security + Medicare are payroll taxes (collectively called FICA) — they apply because you're exercising as a current employee.
Both columns are stated in year-1 dollars: sell-now proceeds compound at the market return and pay LTCG on the gain at year 1; any cash paid out of pocket on the hold side carries the same opportunity cost.
Net at year N — by hold period
Estimates only. Excludes AMT (NSOs do not trigger AMT), state-AMT, multi-state moves, and disqualifying-disposition edge cases. Not financial advice.
You calculated one NSO decision. The beta plans NSOs alongside RSUs and ISOs in a single multi-year tax plan.
Request beta access →Related calculators: Stock Concentration Calculator · Multi-Year ISO Exercise Schedule 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.
Last close: $41.3 per share (as of 2026-10-09).
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 formed on November 30, 2021, when Honeywell Quantum Solutions merged with Cambridge Quantum, combining Honeywells trapped-ion hardware with Cambridge Quantums software stack. The company builds quantum computers that trap and manipulate individual charged atoms (ions) with lasers to perform calculations; its third-generation system, Helios, launched commercially in November 2025 with 98 physical qubits and 99.921% two-qubit gate fidelity, a measure of how often paired-qubit operations run error-free. Quantinuum priced an upsized IPO at $60 per share on June 3, 2026, raising $1.68 billion, and began trading on the Nasdaq Global Market on June 4, 2026 under ticker QNT.
Sources: thequantuminsider.com · cnbc.com · honeywell.com · quantinuum.com
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..
Use this calculator to estimate your Quantinuum Inc. (QNT) NSO exercise tax (federal, state, FICA), then compare selling now versus holding through the long-term capital gains threshold. Inputs are yours: grant terms, current price, your income, your state.
Example: at Quantinuum Inc. (QNT)'s last close of $41.3, exercising 5,000 NSOs with a $12.39 strike creates a $144,550 bargain element, taxed as ordinary income on the day you exercise. Combined federal + state + FICA on that bargain typically lands between $39,028 and $65,047 depending on your bracket and state. The calculator above computes the exact figure for your situation and compares selling now vs. holding through the long-term capital-gains threshold.
All Quantinuum Inc. tools → · Use the generic NSO Exercise Calculator for any company.
Quantinuum Inc. equity questions
- How is a Quantinuum Inc. NSO exercise taxed?
- Exercising a non-qualified stock option (NSO) creates ordinary income on the bargain element (the price on the day you exercise minus your strike), subject to federal income tax, state income tax, and FICA. The calculator above computes that tax for your Quantinuum Inc. grant and compares selling the shares now against holding past the one-year mark for long-term capital-gains treatment.
- 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.
One piece of the puzzle.
OptionsAhoy plans your Quantinuum Inc. equity alongside hedging, vesting, and de-concentration, across bullish, neutral, and bearish market scenarios. Free during beta.