A share buyback, also known as a stock repurchase, occurs when a company buys back its own shares from the marketplace. Companies may initiate buybacks to return excess cash to shareholders, signal confidence in their own financial health, or to prevent other shareholders from gaining a controlling stake.

A share-based payment is a transaction in which an entity receives goods or services from suppliers or employees as consideration for equity instruments (such as shares or stock options) or incurs a liability to suppliers or employees that is based on the price of the entity's shares.

The solvency ratio is a key financial metric used to measure a company's ability to meet its long-term debt obligations and remain financially healthy over the long term. A higher solvency ratio indicates a stronger ability to meet long-term debts, while a lower ratio may suggest potential financial instability.

Special interest purchasers are individuals or companies who have a specific reason for wanting to buy a particular business or asset. They might be competitors, investors, or others who see unique value in the purchase. These buyers are often willing to pay more or offer special terms because they have a strategic goal in mind. Their interest can affect the valuation and negotiation process, as they may place a higher value on certain aspects of the business or asset.

A Special Purpose Entity (SPE), also known as a Special Purpose Vehicle (SPV), is a legal entity created for a specific, narrow purpose. Typically, companies establish SPEs to isolate financial risk.

A spin-off is a corporate action in which a company creates a new, independent company by separating part of its business. The parent company distributes shares of the new company to its existing shareholders, usually on a pro-rata basis.