Market share, also known as PDM (Percentage of Domestic Market) volume, refers to the percentage of total sales or revenue that a company or product holds within a specific market. It is a measure of a company’s or product’s success in relation to its competitors and is often used to gauge its overall performance and impact in the market. A higher market share indicates a larger customer base and a stronger presence in the market, while a lower market share may suggest room for growth and improvement. Companies often strive to increase their market share through various strategies such as product differentiation, pricing strategies, and marketing efforts. PDM volume is a crucial metric for businesses to track and analyze in order to make informed decisions and stay competitive in the ever-changing market landscape.