West Pharmaceutical Services (WST) Protective Put Calculator

Calculator · free · no signup · WST

Price a protective put, zero-cost collar, or put spread on West Pharmaceutical Services. Annual cost, max loss, upside cap, tax treatment, auto-filled from current WST option chain.

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About West Pharmaceutical Services

West Pharmaceutical Services (WST) is a public Medical Device company, incorporated in Pennsylvania and headquartered in Exton, PA.

Last close: $346.59 per share (as of 2026-08-19).

Equity grants at West Pharmaceutical Services typically include restricted stock units (RSUs).

West Pharmaceutical Services, Inc. is a designer and manufacturer of injectable pharmaceutical packaging and delivery systems. Founded in 1923 by Herman O. West and J.R. Wike of Philadelphia, the company is headquartered in Exton, Pennsylvania. In its early years of development, West produced rubber components for packaging injectable drugs, providing a sterile environment for the producers of penicillin and insulin.

Source: Wikipedia (CC BY-SA 4.0)

The company makes the rubber stoppers, seals, and syringe components that sit between an injectable drug and its container, a category most people never see and no drug maker can skip. Components are qualified as part of a drug's regulatory filing, so changing supplier means revisiting an approval, which produces switching costs out of all proportion to the price of the part. Growth has followed the shift toward biologics and self-administered injectables. Manufacturing precision and particulate control define the technical moat. Headquarters are in Exton, Pennsylvania.

Sources: sec.gov · en.wikipedia.org

OptionsAhoy is an independent tool and is not affiliated with, endorsed by, or sponsored by West Pharmaceutical Services.

A protective put caps your downside on the WST 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 WST option chain, with annual cost, max loss, and tax-treatment notes.

Example: a 5,000-share WST position at $346.59 is worth $1,732,950. A 1-year 30%-OTM put on that position typically runs 2-4% of position value per year (about $34,659 to $69,318) before any premium offset from a short call. The calculator prices both structures off WST's current option chain so you see the actual cost for your chosen floor, tenor, and cap.

All West Pharmaceutical Services tools → · Use the generic Protect Your Stock Calculator for any company.

West Pharmaceutical Services equity questions

How much does it cost to hedge WST 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 WST'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 WST option chain and shows the annual cost, maximum loss, and tax treatment.
Does West Pharmaceutical Services grant ISOs, NSOs, or RSUs?
Equity compensation at West Pharmaceutical Services typically takes the form of restricted stock units (RSUs). Restricted stock units are taxed as ordinary income when they vest.
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