- A war chest is a cash reserve that a company has that plans to use at uncertain times or for acquisitions.
- A whisper action describes a situation where a public company becomes the subject of speculation due to an upcoming buyout announcement.
- White Knight is a hostile takeover defense in which a friendly company buys the target company instead of an unfriendly bidder.
- A white squire is an investor or company that acquires a stake in a company to prevent a hostile takeover.
- White mail is a hostile takeover defense that involves issuing large amounts of new shares to friendly shareholders.
- Before the target company can offer financial assistance to the buyer, a depreciation decision must be made.
- A wholly owned subsidiary is a company whose ordinary shares are 100% owned by the parent company.
- Yellow Knight is a company that has attempted a hostile takeover but then backs off and instead proposes a merger with the target company.