Market share

Definition

The percentage of total sales in a market that is captured by a particular company or product.

Etymology

This term emerged in the early 20th century as businesses became more sophisticated in analyzing competition and market dynamics. The concept gained prominence with the rise of market research in the 1920s and 1930s, becoming essential business vocabulary as companies sought to quantify their competitive position.

Kelly Says

Market share is often seen as the ultimate business metric, but it can be misleading - a company might have high market share in a shrinking market, or low share in a rapidly growing one. The obsession with market share has led some companies to prioritize growth over profitability, sometimes to their detriment.

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