Aon (AON) Protective Put Calculator
Calculator · free · no signup · AONPrice a protective put, zero-cost collar, or put spread on Aon. Annual cost, max loss, upside cap, tax treatment, auto-filled from current AON option chain.
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You priced one hedge. The beta picks the right hedge structure given your full equity stack and tax situation.
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About Aon
Aon (AON) is a public Fintech company, incorporated in Ireland and headquartered in Dublin 2, Ireland.
Last close: $269.45 per share (as of 2026-10-04).
Equity grants at Aon typically include restricted stock units (RSUs).
Aon plc is an international professional services firm. It has two divisions: Risk Capital, which provides brokerage and consulting services for risk management, insurance and reinsurance, and Human Capital, which provides services related to health insurance, retirement plans, pension plans, and talent advisory.
Source: Wikipedia (CC BY-SA 4.0)
The firm took its present shape through Patrick Ryan's 1982 combination of Ryan Insurance with Combined International, and it now brokers insurance and reinsurance and advises employers on benefits and pensions. Brokers earn commissions and fees without carrying underwriting risk, so results track commercial insurance pricing and client payrolls rather than claims experience. A move of legal domicile to Ireland in 2020 followed an earlier shift to London. Talent is the balance sheet in a business where client relationships travel with individual brokers. The company is incorporated in Ireland, with operations run from London.
Sources: sec.gov · en.wikipedia.org
Equity comp at Aon
- Aon's change-in-control arrangements use a double-trigger structure: RSU acceleration requires both a change in control of Aon AND a qualifying termination (involuntary termination without cause, or constructive termination) occurring in connection with or within two years following that change in control. A change in control alone, without a qualifying termination, does not automatically vest outstanding RSUs. None of the named executive officer agreements include excise tax gross-up protection under IRC Section 280G.
- RSUs use double-trigger vesting. Two things must both happen before the shares are yours: (1) the normal time-based vesting completes, and (2) the company has a liquidity event (an IPO or an acquisition). Until both happen, you do not yet own the shares and you do not owe tax on them.
- Vesting schedule: RSUs generally vest between three and five years (not the standard 4-year/1-year-cliff schedule); executive incentive-compensation RSUs have historically vested in three equal annual installments..
Sources: sec.gov · sec.gov · sec.gov · sec.gov · sec.gov
Researched 2026-08-20.
OptionsAhoy is an independent tool and is not affiliated with, endorsed by, or sponsored by Aon.
A protective put caps your downside on the AON position at a chosen floor; a zero-cost collar pays for that floor by capping the upside. This calculator prices both structures off the current AON option chain, with annual cost, max loss, and tax-treatment notes.
Example: a 5,000-share AON position at $269.45 is worth $1,347,250. A 1-year 30%-OTM put on that position typically runs 2-4% of position value per year (about $26,945 to $53,890) before any premium offset from a short call. The calculator prices both structures off AON's current option chain so you see the actual cost for your chosen floor, tenor, and cap.
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Aon equity questions
- How much does it cost to hedge AON stock?
- The cost of a protective put depends on how far below the current price you set the floor, how long the protection lasts, and AON's option-implied volatility. A zero-cost collar lowers that cost by selling away some upside. The calculator above prices both structures off the current AON option chain and shows the annual cost, maximum loss, and tax treatment.
- Does Aon grant ISOs, NSOs, or RSUs?
- Equity compensation at Aon typically takes the form of restricted stock units (RSUs). Restricted stock units are taxed as ordinary income when they vest.
- Do Aon RSUs use double-trigger vesting?
- Yes. Aon restricted stock units (RSUs) vest only when two things both happen: the time-based schedule completes, and the company has a liquidity event such as an initial public offering (IPO) or an acquisition. Until both occur you do not own the shares and owe no tax on them.
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