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🎯 '''Strike''' — commonly referred to as the strike price or exercise price — is the predetermined price at which an [[Definition:Option | option]] or other derivative contract can be exercised. Within the insurance industry, the concept appears most prominently in [[Definition:Insurance-linked securities (ILS) | insurance-linked securities]], [[Definition:Catastrophe bond | catastrophe bonds]], [[Definition:Industry loss warranty (ILW) | industry loss warranties]], and other structured [[Definition:Risk transfer | risk transfer]] instruments where a payout is triggered when a defined metric — such as an insured industry loss, a parametric index reading, or a modeled loss estimate — crosses a specified threshold. That threshold is the strike, and its calibration is one of the most consequential decisions in structuring any trigger-based transaction.

⚙️ In a [[Definition:Catastrophe bond | catastrophe bond]], for example, the strike is embedded in the trigger mechanism: if an earthquake's magnitude exceeds a specified level (in a [[Definition:Parametric insurance | parametric]] structure) or if aggregate industry losses from a hurricane surpass a stated dollar amount (in an [[Definition:Industry loss trigger | industry loss trigger]] structure), the bond principal is released to the sponsoring [[Definition:Insurance carrier | insurer]] or [[Definition:Reinsurance | reinsurer]]. The strike level directly determines the probability of attachment and therefore governs both the [[Definition:Premium | coupon]] investors demand and the protection the sponsor receives. [[Definition:Catastrophe modeling | Catastrophe modelers]], [[Definition:Actuary | actuaries]], and investment banks collaborate to calibrate strike levels that balance the sponsor's need for meaningful protection against investors' appetite for remote-probability risk. Similarly, in [[Definition:Industry loss warranty (ILW) | ILW]] contracts traded in markets such as London and Bermuda, the strike defines the industry loss level at which the contract responds.

💡 Getting the strike right is essential to the economic integrity of any trigger-based risk transfer. Set it too low, and the instrument triggers too frequently, driving up costs and potentially creating [[Definition:Basis risk | basis risk]] between the sponsor's actual losses and the payout structure. Set it too high, and the protection rarely activates, leaving the sponsor exposed to the very scenarios it sought to hedge. As the [[Definition:Capital markets | capital markets]] convergence with insurance deepens — with pension funds, hedge funds, and sovereign wealth funds all participating as risk capital providers — the precision with which strikes are modeled and negotiated has become a defining skill in modern [[Definition:Reinsurance | reinsurance]] and [[Definition:Alternative risk transfer (ART) | alternative risk transfer]].

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Catastrophe bond]]
* [[Definition:Industry loss warranty (ILW)]]
* [[Definition:Parametric insurance]]
* [[Definition:Basis risk]]
* [[Definition:Trigger]]
* [[Definition:Insurance-linked securities (ILS)]]
{{Div col end}}

Definition:Strike - Revision history

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